Bump version to 4.77.2

Fixes #9736

See https://developer.android.com/jetpack/androidx/releases/appcompat#1.2.0
for how the code is "correctly" applying a new configuration.

Co-authored-by: Cody Henthorne <cody@signal.org>

.github/workflows/android.yml

@@ -6,6 +6,7 @@ on:
     branches:
     - 'master'
     - '4.**'
+    - '5.**'
 
 jobs:
   build:
@@ -14,11 +15,17 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+
     - name: set up JDK 1.8
       uses: actions/setup-java@v1
       with:
         java-version: 1.8
+
+    - name: Install NDK
+      run: echo "y" | sudo /usr/local/lib/android/sdk/tools/bin/sdkmanager --install "ndk;21.0.6113669" --sdk_root=${ANDROID_SDK_ROOT}
+
     - name: Validate Gradle Wrapper
       uses: gradle/wrapper-validation-action@v1
+
     - name: Build with Gradle
       run: ./gradlew qa

.github/workflows/docker.yml

@@ -0,0 +1,18 @@
+name: Reproducible Build Check
+
+on:
+  schedule:
+    - cron: '0 5 * * *'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build image
+      run: cd reproducible-builds && docker build -t signal-android . && cd ..
+
+    - name: Test build
+      run: docker run --rm -v $(pwd):/project -w /project signal-android ./gradlew clean assembleRelease

.gitignore

@@ -1,6 +1,8 @@
 .classpath
 captures/
 project.properties
+keystore.debug.properties
+keystore.staging.properties
 .project
 .settings
 bin/
@@ -23,5 +25,5 @@ ffpr
 test/androidTestEspresso/res/values/arrays.xml
 obj/
 jni/libspeex/.deps/
-*.sh
 pkcs11.password
+dev.keystore

CONTRIBUTING.md

@@ -83,7 +83,7 @@ There are several other ways to get involved:
 * Try to reproduce issues and help with troubleshooting.
 * Discover solutions to open issues and post any relevant findings.
 * Test other people's pull requests.
-* Contribute to Signal via the [Freedom of the Press Foundation's donation page](https://freedom.press/crowdfunding/signal/).
+* [Donate to Signal.](https://signal.org/donate/)
 * Share Signal with your friends and family.
 
 Signal is made for you. Thank you for your feedback and support.

Dockerfile

@@ -1,25 +0,0 @@
-FROM ubuntu:17.10
-
-RUN dpkg --add-architecture i386 && \
-    apt-get update -y && \
-    apt-get install -y software-properties-common && \
-    apt-get update -y && \
-    apt-get install -y libc6:i386=2.26-0ubuntu2.1 libncurses5:i386=6.0+20160625-1ubuntu1 libstdc++6:i386=7.2.0-8ubuntu3.2 lib32z1=1:1.2.11.dfsg-0ubuntu2 wget openjdk-8-jdk=8u171-b11-0ubuntu0.17.10.1 git unzip opensc pcscd && \
-    rm -rf /var/lib/apt/lists/* && \
-    apt-get autoremove -y && \
-    apt-get clean
-
-ENV ANDROID_SDK_FILENAME android-sdk_r24.4.1-linux.tgz
-ENV ANDROID_SDK_URL https://dl.google.com/android/${ANDROID_SDK_FILENAME}
-ENV ANDROID_API_LEVELS android-28
-ENV ANDROID_BUILD_TOOLS_VERSION 28.0.3
-ENV ANDROID_HOME /usr/local/android-sdk-linux
-ENV PATH ${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools
-RUN cd /usr/local/ && \
-    wget -q ${ANDROID_SDK_URL} && \
-    tar -xzf ${ANDROID_SDK_FILENAME} && \
-    rm ${ANDROID_SDK_FILENAME} 
-RUN echo y | android update sdk --no-ui -a --filter ${ANDROID_API_LEVELS}
-RUN echo y | android update sdk --no-ui -a --filter extra-android-m2repository,extra-android-support,extra-google-google_play_services,extra-google-m2repository
-RUN echo y | android update sdk --no-ui -a --filter tools,platform-tools,build-tools-${ANDROID_BUILD_TOOLS_VERSION}
-RUN rm -rf ${ANDROID_HOME}/tools && unzip ${ANDROID_HOME}/temp/*.zip -d ${ANDROID_HOME}

README.md

@@ -59,9 +59,7 @@ The form and manner of this distribution makes it eligible for export under the
 
 ## License
 
-Copyright 2011 Whisper Systems
-
-Copyright 2013-2020 Open Whisper Systems
+Copyright 2013-2020 Signal
 
 Licensed under the GPLv3: http://www.gnu.org/licenses/gpl-3.0.html
 

app/build.gradle

@@ -11,13 +11,15 @@ buildscript {
         jcenter {
             content {
                 includeVersion 'org.jetbrains.trove4j', 'trove4j', '20160824'
+                includeGroupByRegex "com\\.archinamon.*"
             }
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.1'
+        classpath 'com.android.tools.build:gradle:4.0.2'
         classpath 'androidx.navigation:navigation-safe-args-gradle-plugin:2.1.0'
         classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.10'
+        classpath 'com.archinamon:android-gradle-aspectj:4.2.0'
     }
 }
 
@@ -25,9 +27,22 @@ apply plugin: 'com.android.application'
 apply plugin: 'com.google.protobuf'
 apply plugin: 'androidx.navigation.safeargs'
 apply plugin: 'witness'
+apply plugin: 'com.archinamon.aspectj-ext'
 apply from: 'translations.gradle'
 apply from: 'witness-verifications.gradle'
 
+if (getGradle().getStartParameter().getTaskRequests().toString().contains("Internal")) {
+    aspectj {
+        includeJar 'sqlcipher'
+        includeAspectsFromJar 'Signal-Android'
+        java = JavaVersion.VERSION_1_8
+    }
+} else if (getGradle().getStartParameter().getTaskRequests().toString().contains("Test")) {
+    aspectj {
+        compileTests = false
+    }
+}
+
 repositories {
     maven {
         url "https://raw.github.com/signalapp/maven/master/photoview/releases/"
@@ -80,8 +95,8 @@ protobuf {
     }
 }
 
-def canonicalVersionCode = 629
-def canonicalVersionName = "4.59.9"
+def canonicalVersionCode = 739
+def canonicalVersionName = "4.77.2"
 
 def postFixSize = 10
 def abiPostFix = ['universal'   : 0,
@@ -90,22 +105,35 @@ def abiPostFix = ['universal'   : 0,
                   'x86'         : 3,
                   'x86_64'      : 4]
 
+def keystores = [ 'debug'  : loadKeystoreProperties('keystore.debug.properties') ]
+
 android {
-    flavorDimensions "none"
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    flavorDimensions 'distribution', 'environment'
+    compileSdkVersion 29
+    buildToolsVersion '29.0.3'
     useLibrary 'org.apache.http.legacy'
 
     dexOptions {
         javaMaxHeapSize "4g"
     }
 
+    signingConfigs {
+        if (keystores.debug != null) {
+            debug {
+                storeFile file("${project.rootDir}/${keystores.debug.storeFile}")
+                storePassword keystores.debug.storePassword
+                keyAlias keystores.debug.keyAlias
+                keyPassword keystores.debug.keyPassword
+            }
+        }
+    }
+
     defaultConfig {
         versionCode canonicalVersionCode * postFixSize
         versionName canonicalVersionName
 
         minSdkVersion 19
-        targetSdkVersion 28
+        targetSdkVersion 29
         multiDexEnabled true
 
         vectorDrawables.useSupportLibrary = true
@@ -122,13 +150,16 @@ android {
         buildConfigField "String", "CONTENT_PROXY_HOST", "\"contentproxy.signal.org\""
         buildConfigField "int", "CONTENT_PROXY_PORT", "443"
         buildConfigField "String", "SIGNAL_AGENT", "\"OWA\""
-        buildConfigField "String", "CDS_MRENCLAVE", "\"cd6cfc342937b23b1bdd3bbf9721aa5615ac9ff50a75c5527d441cd3276826c9\""
-        buildConfigField "String", "KBS_ENCLAVE_NAME", "\"fe7c1bfae98f9b073d220366ea31163ee82f6d04bead774f71ca8e5c40847bfe\""
-        buildConfigField "String", "KBS_MRENCLAVE", "\"a3baab19ef6ce6f34ab9ebb25ba722725ae44a8872dc0ff08ad6d83a9489de87\""
+        buildConfigField "String", "CDS_MRENCLAVE", "\"c98e00a4e3ff977a56afefe7362a27e4961e4f19e211febfbb19b897e6b80b15\""
+        buildConfigField "KbsEnclave", "KBS_ENCLAVE", "new KbsEnclave(\"fe7c1bfae98f9b073d220366ea31163ee82f6d04bead774f71ca8e5c40847bfe\"," +
+                                                                     "\"fe7c1bfae98f9b073d220366ea31163ee82f6d04bead774f71ca8e5c40847bfe\", " +
+                                                                     "\"a3baab19ef6ce6f34ab9ebb25ba722725ae44a8872dc0ff08ad6d83a9489de87\")";
+        buildConfigField "KbsEnclave[]", "KBS_FALLBACKS", "new KbsEnclave[0]"
         buildConfigField "String", "UNIDENTIFIED_SENDER_TRUST_ROOT", "\"BXu6QIKVz5MA8gstzfOgRQGqyLqOwNKHL6INkv3IHWMF\""
-        buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"\""
+        buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"AMhf5ywVwITZMsff/eCyudZx9JDmkkkbV6PInzG4p8x3VqVJSFiMvnvlEKWuRob/1eaIetR31IYeAbm0NdOuHH8Qi+Rexi1wLlpzIo1gstHWBfZzy1+qHRV5A4TqPp15YzBPm0WSggW6PbSn+F4lf57VCnHF7p8SvzAA2ZZJPYJURt8X7bbg+H3i+PEjH9DXItNEqs2sNcug37xZQDLm7X0=\""
         buildConfigField "String[]", "LANGUAGES", "new String[]{\"" + autoResConfig().collect { s -> s.replace('-r', '_') }.join('", "') + '"}'
         buildConfigField "int", "CANONICAL_VERSION_CODE", "$canonicalVersionCode"
+        buildConfigField "int", "TRACE_EVENT_MAX", "2000"
 
         ndk {
             abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
@@ -161,11 +192,18 @@ android {
         exclude 'META-INF/LICENSE'
         exclude 'META-INF/NOTICE'
         exclude 'META-INF/proguard/androidx-annotations.pro'
-        exclude 'lib/*/libzkgroup.so' // TODO: GV2 Remove line to include .so when used
+    }
+
+    aaptOptions {
+        ignoreAssetsPattern '!contours.tfl:!LMprec_600.emd:!blazeface.tfl'
     }
 
     buildTypes {
         debug {
+            if (keystores['debug'] != null) {
+                signingConfig signingConfigs.debug
+            }
+            isDefault true
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'),
                     'proguard/proguard-firebase-messaging.pro',
@@ -189,22 +227,9 @@ android {
             testProguardFiles 'proguard/proguard-automation.pro',
                     'proguard/proguard.cfg'
         }
-        staging {
-            initWith debug
-
-            buildConfigField "String", "SIGNAL_URL", "\"https://textsecure-service-staging.whispersystems.org\""
-            buildConfigField "String", "STORAGE_URL", "\"https://storage-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CDN_URL", "\"https://cdn-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CDN2_URL", "\"https://cdn2-staging.signal.org\""
-            buildConfigField "String", "SIGNAL_CONTACT_DISCOVERY_URL", "\"https://api-staging.directory.signal.org\""
-            buildConfigField "String", "SIGNAL_KEY_BACKUP_URL", "\"https://api-staging.backup.signal.org\""
-            buildConfigField "String", "CDS_MRENCLAVE", "\"ba4ebb438bc07713819ee6c98d94037747006d7df63fc9e44d2d6f1fec962a79\""
-            buildConfigField "String", "KBS_ENCLAVE_NAME", "\"823a3b2c037ff0cbe305cc48928cfcc97c9ed4a8ca6d49af6f7d6981fb60a4e9\""
-            buildConfigField "String", "UNIDENTIFIED_SENDER_TRUST_ROOT", "\"BbqY1DzohE4NUZoVF+L18oUPrK3kILllLEJh2UnPSsEx\""
-            buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"\""
-        }
         flipper {
             initWith debug
+            isDefault false
             minifyEnabled false
         }
         release {
@@ -215,18 +240,53 @@ android {
 
     productFlavors {
         play {
-            dimension "none"
+            dimension 'distribution'
+            isDefault true
             ext.websiteUpdateUrl = "null"
             buildConfigField "boolean", "PLAY_STORE_DISABLED", "false"
             buildConfigField "String", "NOPLAY_UPDATE_URL", "$ext.websiteUpdateUrl"
         }
 
         website {
-            dimension "none"
+            dimension 'distribution'
             ext.websiteUpdateUrl = "https://updates.signal.org/android"
             buildConfigField "boolean", "PLAY_STORE_DISABLED", "true"
             buildConfigField "String", "NOPLAY_UPDATE_URL", "\"$ext.websiteUpdateUrl\""
         }
+
+        internal {
+            dimension 'distribution'
+            ext.websiteUpdateUrl = "null"
+            buildConfigField "boolean", "PLAY_STORE_DISABLED", "false"
+            buildConfigField "String", "NOPLAY_UPDATE_URL", "$ext.websiteUpdateUrl"
+            buildConfigField "int", "TRACE_EVENT_MAX", "30_000"
+        }
+
+        prod {
+            dimension 'environment'
+
+            isDefault true
+        }
+
+        staging {
+            dimension 'environment'
+
+            applicationIdSuffix ".staging"
+
+            buildConfigField "String", "SIGNAL_URL", "\"https://textsecure-service-staging.whispersystems.org\""
+            buildConfigField "String", "STORAGE_URL", "\"https://storage-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CDN_URL", "\"https://cdn-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CDN2_URL", "\"https://cdn2-staging.signal.org\""
+            buildConfigField "String", "SIGNAL_CONTACT_DISCOVERY_URL", "\"https://api-staging.directory.signal.org\""
+            buildConfigField "String", "SIGNAL_KEY_BACKUP_URL", "\"https://api-staging.backup.signal.org\""
+            buildConfigField "String", "CDS_MRENCLAVE", "\"c98e00a4e3ff977a56afefe7362a27e4961e4f19e211febfbb19b897e6b80b15\""
+            buildConfigField "KbsEnclave", "KBS_ENCLAVE", "new KbsEnclave(\"823a3b2c037ff0cbe305cc48928cfcc97c9ed4a8ca6d49af6f7d6981fb60a4e9\", " +
+                                                                         "\"038c40bbbacdc873caa81ac793bb75afde6dfe436a99ab1f15e3f0cbb7434ced\", " +
+                                                                         "\"a3baab19ef6ce6f34ab9ebb25ba722725ae44a8872dc0ff08ad6d83a9489de87\")"
+            buildConfigField "KbsEnclave[]", "KBS_FALLBACKS", "new KbsEnclave[0]"
+            buildConfigField "String", "UNIDENTIFIED_SENDER_TRUST_ROOT", "\"BbqY1DzohE4NUZoVF+L18oUPrK3kILllLEJh2UnPSsEx\""
+            buildConfigField "String", "ZKGROUP_SERVER_PUBLIC_PARAMS", "\"ABSY21VckQcbSXVNCGRYJcfWHiAMZmpTtTELcDmxgdFbtp/bWsSxZdMKzfCp8rvIs8ocCU3B37fT3r4Mi5qAemeGeR2X+/YmOGR5ofui7tD5mDQfstAI9i+4WpMtIe8KC3wU5w3Inq3uNWVmoGtpKndsNfwJrCg0Hd9zmObhypUnSkfYn2ooMOOnBpfdanRtrvetZUayDMSC5iSRcXKpdls=\""
+        }
     }
 
     android.applicationVariants.all { variant ->
@@ -255,29 +315,38 @@ android {
 }
 
 dependencies {
-    implementation 'androidx.appcompat:appcompat:1.1.0-beta01'
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
-    implementation 'com.google.android.material:material:1.0.0'
+    lintChecks project(':lintchecks')
+
+    implementation ('androidx.appcompat:appcompat:1.2.0') {
+        force = true
+    }
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'com.google.android.material:material:1.2.1'
     implementation 'androidx.legacy:legacy-support-v13:1.0.0'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.preference:preference:1.0.0'
     implementation 'androidx.legacy:legacy-preference-v14:1.0.0'
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
     implementation 'androidx.exifinterface:exifinterface:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation 'androidx.multidex:multidex:2.0.1'
     implementation 'androidx.navigation:navigation-fragment:2.1.0'
     implementation 'androidx.navigation:navigation-ui:2.1.0'
     implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-savedstate:1.0.0-alpha05'
     implementation 'androidx.lifecycle:lifecycle-common-java8:2.1.0'
-    implementation "androidx.camera:camera-core:1.0.0-beta01"
-    implementation "androidx.camera:camera-camera2:1.0.0-beta01"
-    implementation "androidx.camera:camera-lifecycle:1.0.0-beta01"
+    implementation "androidx.camera:camera-core:1.0.0-beta11"
+    implementation "androidx.camera:camera-camera2:1.0.0-beta11"
+    implementation "androidx.camera:camera-lifecycle:1.0.0-beta11"
+    implementation "androidx.camera:camera-view:1.0.0-alpha18"
     implementation "androidx.concurrent:concurrent-futures:1.0.0"
     implementation "androidx.autofill:autofill:1.0.0"
+    implementation "androidx.paging:paging-common:2.1.2"
+    implementation "androidx.paging:paging-runtime:2.1.2"
+    implementation 'com.google.firebase:firebase-ml-vision:24.0.3'
+    implementation 'com.google.firebase:firebase-ml-vision-face-model:20.0.1'
 
-    implementation('com.google.firebase:firebase-messaging:17.3.4') {
+    implementation ('com.google.firebase:firebase-messaging:20.2.0') {
         exclude group: 'com.google.firebase', module: 'firebase-core'
         exclude group: 'com.google.firebase', module: 'firebase-analytics'
         exclude group: 'com.google.firebase', module: 'firebase-measurement-connector'
@@ -288,16 +357,17 @@ dependencies {
 
     implementation 'com.google.android.exoplayer:exoplayer-core:2.9.1'
     implementation 'com.google.android.exoplayer:exoplayer-ui:2.9.1'
+    implementation 'com.google.android.exoplayer:extension-mediasession:2.9.1'
 
     implementation 'org.conscrypt:conscrypt-android:2.0.0'
     implementation 'org.signal:aesgcmprovider:0.0.3'
 
     implementation project(':libsignal-service')
-    implementation 'org.signal:zkgroup-android:0.4.1'
+    implementation 'org.signal:zkgroup-android:0.7.0'
 
     implementation 'org.signal:argon2:13.1@aar'
 
-    implementation 'org.signal:ringrtc-android:1.3.2'
+    implementation 'org.signal:ringrtc-android:2.8.0'
 
     implementation "me.leolin:ShortcutBadger:1.1.16"
     implementation 'se.emilsjolander:stickylistheaders:2.7.0'
@@ -351,27 +421,27 @@ dependencies {
 
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.assertj:assertj-core:3.11.1'
-    testImplementation 'org.mockito:mockito-core:1.9.5'
-    testImplementation 'org.powermock:powermock-api-mockito:1.6.1'
-    testImplementation 'org.powermock:powermock-module-junit4:1.6.1'
-    testImplementation 'org.powermock:powermock-module-junit4-rule:1.6.1'
-    testImplementation 'org.powermock:powermock-classloading-xstream:1.6.1'
+    testImplementation 'org.mockito:mockito-core:2.8.9'
+    testImplementation 'org.powermock:powermock-api-mockito2:1.7.4'
+    testImplementation 'org.powermock:powermock-module-junit4:1.7.4'
+    testImplementation 'org.powermock:powermock-module-junit4-rule:1.7.4'
+    testImplementation 'org.powermock:powermock-classloading-xstream:1.7.4'
 
     testImplementation 'androidx.test:core:1.2.0'
-    testImplementation ('org.robolectric:robolectric:4.2') {
+    testImplementation ('org.robolectric:robolectric:4.4') {
         exclude group: 'com.google.protobuf', module: 'protobuf-java'
     }
-    testImplementation 'org.robolectric:shadows-multidex:4.2'
+    testImplementation 'org.robolectric:shadows-multidex:4.4'
+    testImplementation 'org.hamcrest:hamcrest:2.2'
 
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
 
 dependencyVerification {
-    configuration = '(play|website)(Debug|Release)RuntimeClasspath'
+    configuration = '(play|website)(Prod|Staging)(Debug|Release)RuntimeClasspath'
 }
 
-
 def assembleWebsiteDescriptor = { variant, file ->
     if (file.exists()) {
         MessageDigest md = MessageDigest.getInstance("SHA-256");
@@ -415,28 +485,24 @@ def signProductionRelease = { variant ->
 
 task signProductionPlayRelease {
     doLast {
-        signProductionRelease(android.applicationVariants.find { (it.name == 'playRelease') })
+        signProductionRelease(android.applicationVariants.find { (it.name == 'playProdRelease') })
+    }
+}
+
+task signProductionInternalRelease {
+    doLast {
+        signProductionRelease(android.applicationVariants.find { (it.name == 'internalProdRelease') })
     }
 }
 
 task signProductionWebsiteRelease {
     doLast {
-        def  variant       = android.applicationVariants.find { (it.name == 'websiteRelease') }
+        def  variant       = android.applicationVariants.find { (it.name == 'websiteProdRelease') }
         File signedRelease = signProductionRelease(variant).find { it.name.contains('universal') }
         assembleWebsiteDescriptor(variant, signedRelease)
     }
 }
 
-tasks.whenTaskAdded { task ->
-    if (task.name.equals("assemblePlayRelease")) {
-        task.finalizedBy signProductionPlayRelease
-    }
-
-    if (task.name.equals("assembleWebsiteRelease")) {
-        task.finalizedBy signProductionWebsiteRelease
-    }
-}
-
 def getLastCommitTimestamp() {
     new ByteArrayOutputStream().withStream { os ->
         def result = exec {
@@ -448,3 +514,24 @@ def getLastCommitTimestamp() {
         return os.toString() + "000"
     }
 }
+
+tasks.withType(Test) {
+    testLogging {
+        events "failed"
+        exceptionFormat "full"
+        showCauses true
+        showExceptions true
+        showStackTraces true
+    }
+}
+
+def loadKeystoreProperties(filename) {
+    def keystorePropertiesFile = file("${project.rootDir}/${filename}")
+    if (keystorePropertiesFile.exists()) {
+        def keystoreProperties = new Properties()
+        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+        return keystoreProperties;
+    } else {
+        return null;
+    }
+}

app/lint.xml

@@ -1,15 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <lint>
 
+    <!-- Wont pass lint or qa with a STOPSHIP in a comment -->
+    <issue id="StopShip" severity="fatal" />
+
     <!-- L10N errors -->
     <!-- This is a runtime crash so we don't want to ship with this. -->
     <issue id="StringFormatMatches" severity="error" />
 
     <!-- L10N warnings -->
-    <issue id="MissingTranslation" severity="warning" />
+    <issue id="MissingTranslation" severity="ignore" />
     <issue id="MissingQuantity" severity="warning" />
+    <issue id="MissingDefaultResource" severity="error">
+        <ignore path="*/res/values-*/strings.xml" /> <!-- Ignore for non-English, excludeNonTranslatables task will remove these -->
+    </issue>
     <issue id="ExtraTranslation" severity="warning" />
     <issue id="ImpliedQuantity" severity="warning" />
+    <issue id="TypographyDashes" severity="error" >
+        <ignore path="*/res/values-*/strings.xml" /> <!-- Ignore for non-English -->
+    </issue>
 
     <issue id="CanvasSize" severity="error" />
     <issue id="HardcodedText" severity="error" />
@@ -17,9 +26,17 @@
     <issue id="ButtonOrder" severity="error" />
     <issue id="ExtraTranslation" severity="warning" />
 
+    <!-- Custom lints -->
+    <issue id="LogNotSignal" severity="error" />
+    <issue id="LogNotAppSignal" severity="error" />
+    <issue id="LogTagInlined" severity="error" />
+
     <issue id="RestrictedApi" severity="error">
         <ignore path="*/org/thoughtcrime/securesms/mediasend/camerax/VideoCapture.java" />
         <ignore path="*/org/thoughtcrime/securesms/mediasend/camerax/CameraXModule.java" />
+        <ignore path="*/org/thoughtcrime/securesms/conversation/*.java" />
+        <ignore path="*/org/thoughtcrime/securesms/lock/v2/CreateKbsPinViewModel.java" />
+        <ignore path="*/org/thoughtcrime/securesms/jobs/StickerPackDownloadJob.java" />
     </issue>
 
 </lint>

app/sampledata/contacts.json

@@ -0,0 +1,29 @@
+{
+  "data": [
+    {
+      "name": "Ottttooooooooo Ocataaaaaaaavius",
+      "number": "+1 (555) 555-5555",
+      "label": "Mobile"
+    },
+    {
+      "name": "Victor Von Doom Phd",
+      "number": "+1 (555) 123-4567",
+      "label": "Home"
+    },
+    {
+      "name": "Flash Thompson",
+      "number": "+1 (555) 435-1261",
+      "label": "Work"
+    },
+    {
+      "name": "Dr. Curtis Connors",
+      "number": "+1 (555) 992-1567",
+      "label": "Mobile"
+    },
+    {
+      "name": "Billy Russo",
+      "number": "+1 (555) 234-1516",
+      "label": "Mobile"
+    }
+  ]
+}

app/src/flipper/AndroidManifest.xml

@@ -5,5 +5,12 @@
 
     <application
         android:name=".FlipperApplicationContext"
-        tools:replace="android:name"/>
+        tools:replace="android:name">
+
+        <activity
+            android:name="com.facebook.flipper.android.diagnostics.FlipperDiagnosticActivity"
+            android:exported="true" />
+
+    </application>
+
 </manifest>

app/src/flipper/java/org/thoughtcrime/securesms/database/FlipperSqlCipherAdapter.java

@@ -15,7 +15,9 @@ import net.sqlcipher.database.SQLiteDatabase;
 import net.sqlcipher.database.SQLiteStatement;
 
 import org.thoughtcrime.securesms.database.helpers.SQLCipherOpenHelper;
+import org.thoughtcrime.securesms.logging.Log;
 
+import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -29,13 +31,23 @@ import java.util.Map;
  */
 public class FlipperSqlCipherAdapter extends DatabaseDriver<FlipperSqlCipherAdapter.Descriptor> {
 
+  private static final String TAG = Log.tag(FlipperSqlCipherAdapter.class);
+
   public FlipperSqlCipherAdapter(Context context) {
     super(context);
   }
 
   @Override
   public List<Descriptor> getDatabases() {
-    return Collections.singletonList(new Descriptor(DatabaseFactory.getRawDatabase(getContext())));
+    try {
+      Field databaseHelperField = DatabaseFactory.class.getDeclaredField("databaseHelper");
+      databaseHelperField.setAccessible(true);
+      SQLCipherOpenHelper sqlCipherOpenHelper = (SQLCipherOpenHelper) databaseHelperField.get(DatabaseFactory.getInstance(getContext()));
+      return Collections.singletonList(new Descriptor(sqlCipherOpenHelper));
+    } catch (Exception e) {
+      Log.i(TAG, "Unable to use reflection to access raw database.", e);
+    }
+    return Collections.emptyList();
   }
 
   @Override

app/src/flipper/res/values/strings.xml

@@ -1,4 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<resources>
-  <string name="app_name">Signal (Flipper)</string>
-</resources>

app/src/internal/java/org/thoughtcrime/securesms/tracing/TraceAspect.java

@@ -0,0 +1,103 @@
+package org.thoughtcrime.securesms.tracing;
+
+import androidx.annotation.NonNull;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Pointcut;
+import org.thoughtcrime.securesms.logging.Log;
+
+/**
+ * Uses AspectJ to augment relevant methods to be traced with the {@link TracerImpl}.
+ */
+@Aspect
+public class TraceAspect {
+
+  @Pointcut("within(@org.thoughtcrime.securesms.tracing.Trace *)")
+  public void withinAnnotatedClass() {}
+
+  @Pointcut("execution(!synthetic * *(..)) && withinAnnotatedClass()")
+  public void methodInsideAnnotatedType() {}
+
+  @Pointcut("execution(!synthetic *.new(..)) && withinAnnotatedClass()")
+  public void constructorInsideAnnotatedType() {}
+
+  @Pointcut("execution(@org.thoughtcrime.securesms.tracing.Trace * *(..)) || methodInsideAnnotatedType()")
+  public void annotatedMethod() {}
+
+  @Pointcut("execution(@org.thoughtcrime.securesms.tracing.Trace *.new(..)) || constructorInsideAnnotatedType()")
+  public void annotatedConstructor() {}
+
+  @Pointcut("execution(* *(..)) && within(net.sqlcipher.database.*)")
+  public void sqlcipher() {}
+
+  @Pointcut("execution(* net.sqlcipher.database.SQLiteDatabase.rawQuery(..))             || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.query(..))                || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insert(..))               || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insertOrThrow(..))        || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.insertWithOnConflict(..)) || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.delete(..))               || " +
+            "execution(* net.sqlcipher.database.SQLiteDatabase.update(..))")
+  public void sqlcipherQuery() {}
+
+  @Around("annotatedMethod() || annotatedConstructor() || (sqlcipher() && !sqlcipherQuery())")
+  public @NonNull Object profile(@NonNull ProceedingJoinPoint joinPoint) throws Throwable {
+    String methodName = joinPoint.getSignature().toShortString();
+
+    Tracer.getInstance().start(methodName);
+    Object result = joinPoint.proceed();
+    Tracer.getInstance().end(methodName);
+    return result;
+  }
+
+  @Around("sqlcipherQuery()")
+  public @NonNull Object profileQuery(@NonNull ProceedingJoinPoint joinPoint) throws Throwable {
+    String table;
+    String query;
+
+    if (joinPoint.getSignature().getName().equals("query")) {
+      if (joinPoint.getArgs().length == 9) {
+        table = (String) joinPoint.getArgs()[1];
+        query = (String) joinPoint.getArgs()[3];
+      } else if (joinPoint.getArgs().length == 7 || joinPoint.getArgs().length == 8) {
+        table = (String) joinPoint.getArgs()[0];
+        query = (String) joinPoint.getArgs()[2];
+      } else {
+        table = "N/A";
+        query = "N/A";
+      }
+    } else if (joinPoint.getSignature().getName().equals("rawQuery")) {
+      table = "";
+      query = (String) joinPoint.getArgs()[0];
+    } else if (joinPoint.getSignature().getName().equals("insert")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("insertOrThrow")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("insertWithOnConflict")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = "";
+    } else if (joinPoint.getSignature().getName().equals("delete")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = (String) joinPoint.getArgs()[1];
+    } else if (joinPoint.getSignature().getName().equals("update")) {
+      table = (String) joinPoint.getArgs()[0];
+      query = (String) joinPoint.getArgs()[2];
+    } else {
+      table = "N/A";
+      query = "N/A";
+    }
+
+    query = query == null ? "null" : query;
+    query = "[" + table + "] " + query;
+
+    String methodName = joinPoint.getSignature().toShortString();
+
+    Tracer.getInstance().start(methodName, "query", query);
+    Object result = joinPoint.proceed();
+    Tracer.getInstance().end(methodName);
+    return result;
+  }
+}

app/src/internal/java/org/thoughtcrime/securesms/tracing/TracerImpl.java

@@ -0,0 +1,193 @@
+package org.thoughtcrime.securesms.tracing;
+
+import android.os.SystemClock;
+import androidx.annotation.NonNull;
+
+import com.google.protobuf.ByteString;
+
+import org.thoughtcrime.securesms.BuildConfig;
+import org.thoughtcrime.securesms.trace.TraceProtos;
+import org.thoughtcrime.securesms.trace.TraceProtos.Trace;
+import org.thoughtcrime.securesms.trace.TraceProtos.TracePacket;
+import org.thoughtcrime.securesms.trace.TraceProtos.TrackDescriptor;
+import org.thoughtcrime.securesms.trace.TraceProtos.TrackEvent;
+import org.whispersystems.signalservice.api.util.UuidUtil;
+
+import java.util.Map;
+import java.util.Queue;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * A class to create Perfetto-compatible traces. Currently keeps the entire trace in memory to
+ * avoid weirdness with synchronizing to disk.
+ *
+ * Some general info on how the Perfetto format works:
+ * - The file format is just a Trace proto (see Trace.proto)
+ * - The Trace proto is just a series of TracePackets
+ * - TracePackets can describe:
+ *   - Threads
+ *   - Start of a method
+ *   - End of a method
+ *   - (And a bunch of other stuff that's not relevant to use at this point)
+ *
+ * We keep a circular buffer of TracePackets for method calls, and we keep a separate list of
+ * TracePackets for threads so we don't lose any of those.
+ *
+ * Serializing is just a matter of throwing all the TracePackets we have into a proto.
+ *
+ * Note: This class aims to be largely-thread-safe, but prioritizes speed and memory efficiency
+ * above all else. These methods are going to be called very quickly from every thread imaginable,
+ * and we want to create as little overhead as possible. The idea being that it's ok if we don't,
+ * for example, keep a perfect circular buffer size if it allows us to reduce overhead. The only
+ * cost of screwing up would be dropping a trace packet or something, which, while sad, won't affect
+ * how the app functions.
+ */
+public final class TracerImpl implements Tracer {
+
+  private static final int    TRUSTED_SEQUENCE_ID    = 1;
+  private static final byte[] SYNCHRONIZATION_MARKER = UuidUtil.toByteArray(UUID.fromString("82477a76-b28d-42ba-81dc-33326d57a079"));
+
+  private final Clock                  clock;
+  private final Map<Long, TracePacket> threadPackets;
+  private final Queue<TracePacket>     eventPackets;
+  private final AtomicInteger          eventCount;
+
+  TracerImpl() {
+    this.clock         = SystemClock::elapsedRealtimeNanos;
+    this.threadPackets = new ConcurrentHashMap<>();
+    this.eventPackets  = new ConcurrentLinkedQueue<>();
+    this.eventCount    = new AtomicInteger(0);
+  }
+
+  @Override
+  public boolean isEnabled() {
+    return true;
+  }
+
+  @Override
+  public void start(@NonNull String methodName) {
+    long   time          = clock.getTimeNanos();
+    Thread currentThread = Thread.currentThread();
+
+    if (!threadPackets.containsKey(currentThread.getId())) {
+      threadPackets.put(currentThread.getId(), forThread(currentThread));
+    }
+
+    addPacket(forMethodStart(methodName, time, currentThread.getId()));
+  }
+
+  @Override
+  public void start(@NonNull String methodName, @NonNull String key, @NonNull String value) {
+    long   time          = clock.getTimeNanos();
+    Thread currentThread = Thread.currentThread();
+
+    if (!threadPackets.containsKey(currentThread.getId())) {
+      threadPackets.put(currentThread.getId(), forThread(currentThread));
+    }
+
+    addPacket(forMethodStart(methodName, time, currentThread.getId(), key, value));
+  }
+
+  @Override
+  public void end(@NonNull String methodName) {
+    addPacket(forMethodEnd(methodName, clock.getTimeNanos(), Thread.currentThread().getId()));
+  }
+
+  public @NonNull byte[] serialize() {
+    Trace.Builder trace = Trace.newBuilder();
+
+    for (TracePacket thread : threadPackets.values()) {
+      trace.addPacket(thread);
+    }
+
+    for (TracePacket event : eventPackets) {
+      trace.addPacket(event);
+    }
+
+    trace.addPacket(forSynchronization(clock.getTimeNanos()));
+
+    return trace.build().toByteArray();
+  }
+
+  /**
+   * Attempts to add a packet to our list while keeping the size of our circular buffer in-check.
+   * The tracking of the event count is not perfectly thread-safe, but doing it in a thread-safe
+   * way would likely involve adding a lock, which we really don't want to do, since it'll add
+   * unnecessary overhead.
+   *
+   * Note that we keep track of the event count separately because
+   * {@link ConcurrentLinkedQueue#size()} is NOT a constant-time operation.
+   */
+  private void addPacket(@NonNull TracePacket packet) {
+    eventPackets.add(packet);
+
+    int size = eventCount.incrementAndGet();
+
+    for (int i = size; i > BuildConfig.TRACE_EVENT_MAX; i--) {
+      eventPackets.poll();
+      eventCount.decrementAndGet();
+    }
+  }
+
+  private static TracePacket forThread(@NonNull Thread thread) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTrackDescriptor(TrackDescriptor.newBuilder()
+                                                         .setUuid(thread.getId())
+                                                         .setName(thread.getName()))
+                      .build();
+
+  }
+
+  private static TracePacket forMethodStart(@NonNull String name, long time, long threadId) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_BEGIN))
+                      .build();
+  }
+
+  private static TracePacket forMethodStart(@NonNull String name, long time, long threadId, @NonNull String key, @NonNull String value) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_BEGIN)
+                                               .addDebugAnnotations(TraceProtos.DebugAnnotation.newBuilder()
+                                                                                               .setName(key)
+                                                                                               .setStringValue(value)
+                                                                                               .build()))
+                      .build();
+  }
+
+  private static TracePacket forMethodEnd(@NonNull String name, long time, long threadId) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setTrackEvent(TrackEvent.newBuilder()
+                                               .setTrackUuid(threadId)
+                                               .setName(name)
+                                               .setType(TrackEvent.Type.TYPE_SLICE_END))
+                      .build();
+  }
+
+  private static TracePacket forSynchronization(long time) {
+    return TracePacket.newBuilder()
+                      .setTrustedPacketSequenceId(TRUSTED_SEQUENCE_ID)
+                      .setTimestamp(time)
+                      .setSynchronizationMarker(ByteString.copyFrom(SYNCHRONIZATION_MARKER))
+                      .build();
+  }
+
+  private interface Clock {
+    long getTimeNanos();
+  }
+}

app/src/internal/proto/Trace.proto

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+syntax = "proto2";
+
+package signal;
+
+option java_package         = "org.thoughtcrime.securesms.trace";
+option java_outer_classname = "TraceProtos";
+
+/*
+ * Minimal interface needed to work with Perfetto.
+ *
+ * https://cs.android.com/android/platform/superproject/+/master:external/perfetto/protos/perfetto/trace/trace.proto
+ */
+message Trace {
+  repeated TracePacket packet = 1;
+}
+
+message TracePacket {
+  optional uint64 timestamp          = 8;
+  optional uint32 timestamp_clock_id = 58;
+
+  oneof data {
+    TrackEvent      track_event            = 11;
+    TrackDescriptor track_descriptor       = 60;
+    bytes           synchronization_marker = 36;
+  }
+
+  oneof optional_trusted_packet_sequence_id {
+    uint32 trusted_packet_sequence_id = 10;
+  }
+}
+
+message TrackEvent {
+  repeated uint64 category_iids = 3;
+  repeated string categories    = 22;
+
+  repeated DebugAnnotation debug_annotations = 4;
+
+  oneof name_field {
+    uint64 name_iid = 10;
+  string name     = 23;
+  }
+
+  enum Type {
+    TYPE_UNSPECIFIED = 0;
+    TYPE_SLICE_BEGIN = 1;
+    TYPE_SLICE_END   = 2;
+    TYPE_INSTANT     = 3;
+    TYPE_COUNTER     = 4;
+  }
+
+  optional Type   type          = 9;
+  optional uint64 track_uuid    = 11;
+  optional int64  counter_value = 30;
+
+  oneof timestamp {
+    int64 timestamp_delta_us    = 1;
+    int64 timestamp_absolute_us = 16;
+  }
+
+  oneof thread_time {
+    int64 thread_time_delta_us    = 2;
+    int64 thread_time_absolute_us = 17;
+  }
+}
+
+message TrackDescriptor {
+  optional uint64            uuid        = 1;
+  optional uint64            parent_uuid = 5;
+  optional string            name        = 2;
+  optional ThreadDescriptor  thread      = 4;
+  optional CounterDescriptor counter     = 8;
+}
+
+
+message ThreadDescriptor {
+  optional int32 pid = 1;
+  optional int32 tid = 2;
+
+  optional string thread_name = 5;
+}
+
+message CounterDescriptor {
+  enum BuiltinCounterType {
+    COUNTER_UNSPECIFIED = 0;
+    COUNTER_THREAD_TIME_NS = 1;
+    COUNTER_THREAD_INSTRUCTION_COUNT = 2;
+  }
+
+  enum Unit {
+    UNIT_UNSPECIFIED = 0;
+    UNIT_TIME_NS     = 1;
+    UNIT_COUNT       = 2;
+    UNIT_SIZE_BYTES  = 3;
+  }
+  optional BuiltinCounterType type            = 1;
+  repeated string             categories      = 2;
+  optional Unit               unit            = 3;
+  optional int64              unit_multiplier = 4;
+  optional bool               is_incremental  = 5;
+}
+
+message DebugAnnotation {
+  message NestedValue {
+    enum NestedType {
+      UNSPECIFIED = 0;
+      DICT        = 1;
+      ARRAY       = 2;
+    }
+
+    optional NestedType  nested_type  = 1;
+    repeated string      dict_keys    = 2;
+    repeated NestedValue dict_values  = 3;
+    repeated NestedValue array_values = 4;
+    optional int64       int_value    = 5;
+    optional double      double_value = 6;
+    optional bool        bool_value   = 7;
+    optional string      string_value = 8;
+  }
+
+  oneof name_field {
+    uint64 name_iid = 1;
+    string name     = 10;
+  }
+
+  oneof value {
+    bool        bool_value    = 2;
+    uint64      uint_value    = 3;
+    int64       int_value     = 4;
+    double      double_value  = 5;
+    string      string_value  = 6;
+    uint64      pointer_value = 7;
+    NestedValue nested_value  = 8;
+  }
+}

app/src/internal/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/core_red_shade"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

app/src/main/AndroidManifest.xml

@@ -3,9 +3,9 @@
           xmlns:tools="http://schemas.android.com/tools"
           package="org.thoughtcrime.securesms">
 
-    <uses-sdk tools:overrideLibrary="androidx.camera.core,androidx.camera.camera2,androidx.camera.lifecycle" />
+    <uses-sdk tools:overrideLibrary="androidx.camera.core,androidx.camera.camera2,androidx.camera.lifecycle,androidx.camera.view" />
 
-    <permission android:name="org.thoughtcrime.securesms.ACCESS_SECRETS"
+    <permission android:name="${applicationId}.ACCESS_SECRETS"
                 android:label="Access to TextSecure Secrets"
                 android:protectionLevel="signature" />
 
@@ -36,7 +36,8 @@
     <uses-permission android:name="android.permission.WRITE_SMS"/>
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
 
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+                     android:maxSdkVersion="28" />
 
     <uses-permission android:name="android.permission.CAMERA" />
 
@@ -113,13 +114,22 @@
     <meta-data android:name="google_analytics_adid_collection_enabled" android:value="false" />
     <meta-data android:name="firebase_messaging_auto_init_enabled" android:value="false" />
 
-    <activity android:name="org.thoughtcrime.securesms.WebRtcCallActivity"
+    <activity android:name=".WebRtcCallActivity"
               android:theme="@style/TextSecure.LightTheme.WebRTCCall"
               android:excludeFromRecents="true"
               android:screenOrientation="portrait"
-              android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|screenSize|fontScale"
+              android:supportsPictureInPicture="true"
+              android:windowSoftInputMode="stateAlwaysHidden"
+              android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
+              android:taskAffinity=".calling"
               android:launchMode="singleTask"/>
 
+    <activity android:name=".messagerequests.CalleeMustAcceptMessageRequestActivity"
+              android:theme="@style/TextSecure.DarkNoActionBar"
+              android:screenOrientation="portrait"
+              android:noHistory="true"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".InviteActivity"
               android:theme="@style/Signal.Light.NoActionBar.Invite"
               android:windowSoftInputMode="stateHidden"
@@ -127,7 +137,7 @@
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize">
         <meta-data
             android:name="android.support.PARENT_ACTIVITY"
-            android:value="org.thoughtcrime.securesms.MainActivity" />
+            android:value=".MainActivity" />
     </activity>
 
     <activity android:name=".PromptMmsActivity"
@@ -149,7 +159,7 @@
                android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".sharing.ShareActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:excludeFromRecents="true"
               android:launchMode="singleTask"
               android:taskAffinity=""
@@ -182,7 +192,7 @@
     </activity>
 
     <activity android:name=".stickers.StickerPackPreviewActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:launchMode="singleTask"
               android:noHistory="true"
               android:windowSoftInputMode="stateHidden"
@@ -214,6 +224,23 @@
             <category android:name="android.intent.category.MULTIWINDOW_LAUNCHER" />
         </intent-filter>
 
+        <intent-filter>
+            <action android:name="android.intent.action.VIEW" />
+            <category android:name="android.intent.category.DEFAULT" />
+            <category android:name="android.intent.category.BROWSABLE" />
+            <data android:scheme="sgnl"
+                  android:host="signal.group" />
+        </intent-filter>
+
+        <intent-filter android:autoVerify="true"
+                       tools:targetApi="23">
+            <action android:name="android.intent.action.VIEW" />
+            <category android:name="android.intent.category.DEFAULT" />
+            <category android:name="android.intent.category.BROWSABLE" />
+            <data android:scheme="https"
+                  android:host="signal.group"/>
+        </intent-filter>
+
         <meta-data android:name="com.sec.minimode.icon.portrait.normal"
                    android:resource="@mipmap/ic_launcher" />
         <meta-data android:name="com.sec.minimode.icon.landscape.normal"
@@ -241,19 +268,27 @@
               android:theme="@style/TextSecure.LightTheme.Popup"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
 
-    <activity android:name=".MessageDetailsActivity"
+    <activity android:name=".messagedetails.MessageDetailsActivity"
               android:label="@string/AndroidManifest__message_details"
               android:windowSoftInputMode="stateHidden"
               android:launchMode="singleTask"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".GroupCreateActivity"
-          android:windowSoftInputMode="stateVisible"
-          android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
     <activity android:name=".groups.ui.pendingmemberinvites.PendingMemberInvitesActivity"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"
-              android:theme="@style/TextSecure.LightNoActionBar" />
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
+
+    <activity android:name=".groups.ui.invitesandrequests.ManagePendingAndRequestingMembersActivity"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize|uiMode"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
+
+    <activity android:name=".groups.ui.managegroup.ManageGroupActivity"
+              android:windowSoftInputMode="stateAlwaysHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
+    <activity android:name=".recipients.ui.managerecipient.ManageRecipientActivity"
+              android:windowSoftInputMode="stateAlwaysHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".DatabaseMigrationActivity"
               android:theme="@style/NoAnimation.Theme.AppCompat.Light.DarkActionBar"
@@ -268,7 +303,7 @@
       <activity android:name=".PassphraseCreateActivity"
               android:label="@string/AndroidManifest__create_passphrase"
               android:windowSoftInputMode="stateUnchanged"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:launchMode="singleTask"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -278,7 +313,7 @@
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".NewConversationActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:windowSoftInputMode="stateAlwaysVisible"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -288,7 +323,7 @@
           android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".giph.ui.GiphyActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:windowSoftInputMode="stateHidden"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -341,14 +376,19 @@
               android:windowSoftInputMode="stateHidden"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-        <activity android:name=".MediaPreviewActivity"
+    <activity android:name=".MediaPreviewActivity"
               android:label="@string/AndroidManifest__media_preview"
               android:windowSoftInputMode="stateHidden"
               android:launchMode="singleTask"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".AvatarPreviewActivity"
+              android:label="@string/AndroidManifest__media_preview"
+              android:windowSoftInputMode="stateHidden"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".mediaoverview.MediaOverviewActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:windowSoftInputMode="stateHidden"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -399,15 +439,11 @@
 
     </activity>
 
-    <activity android:name=".RecipientPreferenceActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
-              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
-
     <activity android:name=".mediasend.AvatarSelectionActivity"
               android:theme="@style/TextSecure.FullScreenMedia"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
-    <activity android:name=".BlockedContactsActivity"
+    <activity android:name=".blocked.BlockedUsersActivity"
               android:theme="@style/TextSecure.LightTheme"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
@@ -416,9 +452,8 @@
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".profiles.edit.EditProfileActivity"
-            android:theme="@style/TextSecure.LightRegistrationTheme"
-            android:windowSoftInputMode="stateVisible"
-            android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+              android:theme="@style/TextSecure.LightRegistrationTheme"
+              android:windowSoftInputMode="stateVisible|adjustResize" />
 
     <activity android:name=".lock.v2.CreateKbsPinActivity"
             android:theme="@style/TextSecure.LightRegistrationTheme"
@@ -442,6 +477,9 @@
         </intent-filter>
     </activity>
 
+    <activity android:name=".contacts.TurnOffContactJoinedNotificationsActivity"
+              android:theme="@style/Theme.AppCompat.Dialog.Alert" />
+
     <activity android:name=".messagerequests.MessageRequestMegaphoneActivity"
               android:theme="@style/TextSecure.LightRegistrationTheme"
               android:windowSoftInputMode="adjustResize"
@@ -452,38 +490,69 @@
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".contactshare.ContactNameEditActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".contactshare.SharedContactDetailsActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".ShortcutLauncherActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:exported="true"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity
             android:name=".maps.PlacePickerActivity"
             android:label="@string/PlacePickerActivity_title"
-            android:theme="@style/TextSecure.LightNoActionBar"
+            android:theme="@style/Theme.Signal.DayNight.NoActionBar"
             android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
     <activity android:name=".MainActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:launchMode="singleTask"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
 
     <activity android:name=".pin.PinRestoreActivity"
-              android:theme="@style/TextSecure.LightNoActionBar"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
 
+    <activity android:name=".groups.ui.creategroup.CreateGroupActivity"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
 
-        <service android:enabled="true" android:name="org.thoughtcrime.securesms.service.WebRtcCallService"/>
+    <activity android:name=".groups.ui.addtogroup.AddToGroupsActivity"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
+
+    <activity android:name=".groups.ui.addmembers.AddMembersActivity"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
+
+    <activity android:name=".groups.ui.creategroup.details.AddGroupDetailsActivity"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar" />
+
+    <activity android:name=".groups.ui.chooseadmin.ChooseNewAdminActivity"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
+
+    <activity android:name=".megaphone.ClientDeprecatedActivity"
+              android:theme="@style/Theme.Signal.DayNight.NoActionBar"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize|uiMode"
+              android:launchMode="singleTask" />
+
+    <service android:enabled="true" android:name=".service.WebRtcCallService"/>
     <service android:enabled="true" android:name=".service.ApplicationMigrationService"/>
     <service android:enabled="true" android:exported="false" android:name=".service.KeyCachingService"/>
-    <service android:enabled="true" android:name=".service.IncomingMessageObserver$ForegroundService"/>
+    <service android:enabled="true" android:name=".messages.IncomingMessageObserver$ForegroundService"/>
+
+    <service android:name=".components.voice.VoiceNotePlaybackService">
+        <intent-filter>
+            <action android:name="android.media.browse.MediaBrowserService" />
+        </intent-filter>
+    </service>
+
+    <receiver android:name="androidx.media.session.MediaButtonReceiver" >
+        <intent-filter>
+            <action android:name="android.intent.action.MEDIA_BUTTON" />
+        </intent-filter>
+    </receiver>
 
     <service android:name=".service.QuickResponseService"
              android:permission="android.permission.SEND_RESPOND_VIA_MESSAGE"
@@ -522,7 +591,9 @@
 
     <service android:name=".service.GenericForegroundService"/>
 
-    <service android:name=".gcm.FcmService">
+    <service android:name=".gcm.FcmFetchService" />
+
+    <service android:name=".gcm.FcmReceiveService">
         <intent-filter>
             <action android:name="com.google.firebase.MESSAGING_EVENT" />
         </intent-filter>
@@ -595,18 +666,25 @@
 
     <receiver android:name=".revealable.ViewOnceMessageManager$ViewOnceAlarm" />
 
+    <receiver android:name=".service.TrimThreadsByDateManager$TrimThreadsByDateAlarm" />
+
     <provider android:name=".providers.PartProvider"
               android:grantUriPermissions="true"
               android:exported="false"
-              android:authorities="org.thoughtcrime.provider.securesms" />
+              android:authorities="${applicationId}.part" />
+
+    <provider android:name=".providers.BlobContentProvider"
+              android:authorities="${applicationId}.blob"
+              android:exported="false"
+              android:grantUriPermissions="true" />
 
     <provider android:name=".providers.MmsBodyProvider"
               android:grantUriPermissions="true"
               android:exported="false"
-              android:authorities="org.thoughtcrime.provider.securesms.mms" />
+              android:authorities="${applicationId}.mms" />
 
     <provider android:name="androidx.core.content.FileProvider"
-              android:authorities="org.thoughtcrime.securesms.fileprovider"
+              android:authorities="${applicationId}.fileprovider"
               android:exported="false"
               android:grantUriPermissions="true">
 
@@ -615,23 +693,23 @@
     </provider>
 
     <provider android:name=".database.DatabaseContentProviders$Conversation"
-              android:authorities="org.thoughtcrime.securesms.database.conversation"
+              android:authorities="${applicationId}.database.conversation"
               android:exported="false" />
 
     <provider android:name=".database.DatabaseContentProviders$ConversationList"
-              android:authorities="org.thoughtcrime.securesms.database.conversationlist"
+              android:authorities="${applicationId}.database.conversationlist"
               android:exported="false" />
 
     <provider android:name=".database.DatabaseContentProviders$Attachment"
-              android:authorities="org.thoughtcrime.securesms.database.attachment"
+              android:authorities="${applicationId}.database.attachment"
               android:exported="false" />
 
     <provider android:name=".database.DatabaseContentProviders$Sticker"
-              android:authorities="org.thoughtcrime.securesms.database.sticker"
+              android:authorities="${applicationId}.database.sticker"
               android:exported="false" />
 
     <provider android:name=".database.DatabaseContentProviders$StickerPack"
-              android:authorities="org.thoughtcrime.securesms.database.stickerpack"
+              android:authorities="${applicationId}.database.stickerpack"
               android:exported="false" />
 
     <receiver android:name=".service.BootReceiver">
@@ -677,11 +755,7 @@
         </intent-filter>
     </receiver>
 
-    <receiver android:name=".notifications.MessageNotifier$ReminderReceiver">
-        <intent-filter>
-            <action android:name="org.thoughtcrime.securesms.MessageNotifier.REMINDER_ACTION"/>
-        </intent-filter>
-    </receiver>
+    <receiver android:name=".notifications.MessageNotifier$ReminderReceiver"/>
 
     <receiver android:name=".notifications.DeleteNotificationReceiver">
         <intent-filter>

app/src/main/java/androidx/camera/view/SignalCameraView.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.thoughtcrime.securesms.mediasend.camerax;
+package androidx.camera.view;
 
 import android.Manifest.permission;
 import android.annotation.SuppressLint;
@@ -28,7 +28,6 @@ import android.os.Looper;
 import android.os.Parcelable;
 import android.text.TextUtils;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.Display;
 import android.view.MotionEvent;
 import android.view.ScaleGestureDetector;
@@ -46,42 +45,44 @@ import androidx.annotation.RestrictTo;
 import androidx.annotation.RestrictTo.Scope;
 import androidx.camera.core.Camera;
 import androidx.camera.core.CameraSelector;
-import androidx.camera.core.DisplayOrientedMeteringPointFactory;
 import androidx.camera.core.FocusMeteringAction;
 import androidx.camera.core.FocusMeteringResult;
 import androidx.camera.core.ImageCapture;
 import androidx.camera.core.ImageCapture.OnImageCapturedCallback;
+import androidx.camera.core.ImageCapture.OnImageSavedCallback;
 import androidx.camera.core.ImageProxy;
+import androidx.camera.core.Logger;
 import androidx.camera.core.MeteringPoint;
+import androidx.camera.core.MeteringPointFactory;
+import androidx.camera.core.VideoCapture;
+import androidx.camera.core.VideoCapture.OnVideoSavedCallback;
 import androidx.camera.core.impl.LensFacingConverter;
 import androidx.camera.core.impl.utils.executor.CameraXExecutors;
 import androidx.camera.core.impl.utils.futures.FutureCallback;
 import androidx.camera.core.impl.utils.futures.Futures;
 import androidx.lifecycle.LifecycleOwner;
+import androidx.lifecycle.LiveData;
 
 import com.google.common.util.concurrent.ListenableFuture;
 
-import org.thoughtcrime.securesms.R;
-
-import java.io.FileDescriptor;
+import java.io.File;
 import java.util.concurrent.Executor;
 
 /**
  * A {@link View} that displays a preview of the camera with methods {@link
  * #takePicture(Executor, OnImageCapturedCallback)},
- * {@link #startRecording(FileDescriptor, Executor, VideoCapture.OnVideoSavedCallback)} and {@link #stopRecording()}.
+ * {@link #takePicture(ImageCapture.OutputFileOptions, Executor, OnImageSavedCallback)},
+ * {@link #startRecording(File , Executor , OnVideoSavedCallback callback)}
+ * and {@link #stopRecording()}.
  *
  * <p>Because the Camera is a limited resource and consumes a high amount of power, CameraView must
  * be opened/closed. CameraView will handle opening/closing automatically through use of a {@link
  * LifecycleOwner}. Use {@link #bindToLifecycle(LifecycleOwner)} to start the camera.
  */
-// Begin Signal Custom Code Block
 @RequiresApi(21)
 @SuppressLint("RestrictedApi")
-// End Signal Custom Code Block
-public final class CameraXView extends FrameLayout {
-  static final String TAG = CameraXView.class.getSimpleName();
-  static final boolean DEBUG = false;
+public final class SignalCameraView extends FrameLayout {
+  static final String TAG = SignalCameraView.class.getSimpleName();
 
   static final int INDEFINITE_VIDEO_DURATION = -1;
   static final int INDEFINITE_VIDEO_SIZE = -1;
@@ -107,7 +108,7 @@ public final class CameraXView extends FrameLayout {
   // For pinch-to-zoom
   private PinchToZoomGestureDetector mPinchToZoomGestureDetector;
   private boolean mIsPinchToZoomEnabled = true;
-  CameraXModule mCameraModule;
+  SignalCameraXModule mCameraModule;
   private final DisplayManager.DisplayListener mDisplayListener =
       new DisplayListener() {
         @Override
@@ -124,26 +125,25 @@ public final class CameraXView extends FrameLayout {
         }
       };
   private PreviewView mPreviewView;
-  private ScaleType mScaleType = ScaleType.CENTER_CROP;
   // For accessibility event
   private MotionEvent mUpEvent;
 
-  public CameraXView(@NonNull Context context) {
+  public SignalCameraView(@NonNull Context context) {
     this(context, null);
   }
 
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs) {
     this(context, attrs, 0);
   }
 
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) {
     super(context, attrs, defStyle);
     init(context, attrs);
   }
 
   @RequiresApi(21)
-  public CameraXView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr,
-                    int defStyleRes) {
+  public SignalCameraView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr,
+                          int defStyleRes) {
     super(context, attrs, defStyleAttr, defStyleRes);
     init(context, attrs);
   }
@@ -172,23 +172,23 @@ public final class CameraXView extends FrameLayout {
 
   private void init(Context context, @Nullable AttributeSet attrs) {
     addView(mPreviewView = new PreviewView(getContext()), 0 /* view position */);
-    mCameraModule = new CameraXModule(this);
+    mCameraModule = new SignalCameraXModule(this);
 
     if (attrs != null) {
-      TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CameraXView);
+      TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CameraView);
       setScaleType(
-          ScaleType.fromId(
-              a.getInteger(R.styleable.CameraXView_scaleType,
+          PreviewView.ScaleType.fromId(
+              a.getInteger(R.styleable.CameraView_scaleType,
                   getScaleType().getId())));
       setPinchToZoomEnabled(
           a.getBoolean(
-              R.styleable.CameraXView_pinchToZoomEnabled, isPinchToZoomEnabled()));
+              R.styleable.CameraView_pinchToZoomEnabled, isPinchToZoomEnabled()));
       setCaptureMode(
           CaptureMode.fromId(
-              a.getInteger(R.styleable.CameraXView_captureMode,
+              a.getInteger(R.styleable.CameraView_captureMode,
                   getCaptureMode().getId())));
 
-      int lensFacing = a.getInt(R.styleable.CameraXView_lensFacing, LENS_FACING_BACK);
+      int lensFacing = a.getInt(R.styleable.CameraView_lensFacing, LENS_FACING_BACK);
       switch (lensFacing) {
         case LENS_FACING_NONE:
           setCameraLensFacing(null);
@@ -203,7 +203,7 @@ public final class CameraXView extends FrameLayout {
           // Unhandled event.
       }
 
-      int flashMode = a.getInt(R.styleable.CameraXView_flash, 0);
+      int flashMode = a.getInt(R.styleable.CameraView_flash, 0);
       switch (flashMode) {
         case FLASH_MODE_AUTO:
           setFlash(ImageCapture.FLASH_MODE_AUTO);
@@ -265,7 +265,7 @@ public final class CameraXView extends FrameLayout {
     if (savedState instanceof Bundle) {
       Bundle state = (Bundle) savedState;
       super.onRestoreInstanceState(state.getParcelable(EXTRA_SUPER));
-      setScaleType(ScaleType.fromId(state.getInt(EXTRA_SCALE_TYPE)));
+      setScaleType(PreviewView.ScaleType.fromId(state.getInt(EXTRA_SCALE_TYPE)));
       setZoomRatio(state.getFloat(EXTRA_ZOOM_RATIO));
       setPinchToZoomEnabled(state.getBoolean(EXTRA_PINCH_TO_ZOOM_ENABLED));
       setFlash(FlashModeConverter.valueOf(state.getString(EXTRA_FLASH)));
@@ -298,6 +298,21 @@ public final class CameraXView extends FrameLayout {
     dpyMgr.unregisterDisplayListener(mDisplayListener);
   }
 
+  /**
+   * Gets the {@link LiveData} of the underlying {@link PreviewView}'s
+   * {@link PreviewView.StreamState}.
+   *
+   * @return A {@link LiveData} containing the {@link PreviewView.StreamState}. Apps can either
+   * get current value by {@link LiveData#getValue()} or register a observer by
+   * {@link LiveData#observe}.
+   * @see PreviewView#getPreviewStreamState()
+   */
+  @NonNull
+  public LiveData<PreviewView.StreamState> getPreviewStreamState() {
+    return mPreviewView.getPreviewStreamState();
+  }
+
+  @NonNull
   PreviewView getPreviewView() {
     return mPreviewView;
   }
@@ -347,11 +362,11 @@ public final class CameraXView extends FrameLayout {
   /**
    * Returns the scale type used to scale the preview.
    *
-   * @return The current {@link ScaleType}.
+   * @return The current {@link PreviewView.ScaleType}.
    */
   @NonNull
-  public ScaleType getScaleType() {
-    return mScaleType;
+  public PreviewView.ScaleType getScaleType() {
+    return mPreviewView.getScaleType();
   }
 
   /**
@@ -359,13 +374,10 @@ public final class CameraXView extends FrameLayout {
    *
    * <p>This controls how the view finder should be scaled and positioned within the view.
    *
-   * @param scaleType The desired {@link ScaleType}.
+   * @param scaleType The desired {@link PreviewView.ScaleType}.
    */
-  public void setScaleType(@NonNull ScaleType scaleType) {
-    if (scaleType != mScaleType) {
-      mScaleType = scaleType;
-      requestLayout();
-    }
+  public void setScaleType(@NonNull PreviewView.ScaleType scaleType) {
+    mPreviewView.setScaleType(scaleType);
   }
 
   /**
@@ -401,8 +413,10 @@ public final class CameraXView extends FrameLayout {
   }
 
   /**
-   * Sets the maximum video duration before {@link VideoCapture.OnVideoSavedCallback#onVideoSaved(FileDescriptor)} is
-   * called automatically. Use {@link #INDEFINITE_VIDEO_DURATION} to disable the timeout.
+   * Sets the maximum video duration before
+   * {@link OnVideoSavedCallback#onVideoSaved(VideoCapture.OutputFileResults)} is called
+   * automatically.
+   * Use {@link #INDEFINITE_VIDEO_DURATION} to disable the timeout.
    */
   private void setMaxVideoDuration(long duration) {
     mCameraModule.setMaxVideoDuration(duration);
@@ -417,7 +431,8 @@ public final class CameraXView extends FrameLayout {
   }
 
   /**
-   * Sets the maximum video size in bytes before {@link VideoCapture.OnVideoSavedCallback#onVideoSaved(FileDescriptor)}
+   * Sets the maximum video size in bytes before
+   * {@link OnVideoSavedCallback#onVideoSaved(VideoCapture.OutputFileResults)}
    * is called automatically. Use {@link #INDEFINITE_VIDEO_SIZE} to disable the size restriction.
    */
   private void setMaxVideoSize(long size) {
@@ -435,28 +450,38 @@ public final class CameraXView extends FrameLayout {
     mCameraModule.takePicture(executor, callback);
   }
 
+  /**
+   * Takes a picture and calls
+   * {@link OnImageSavedCallback#onImageSaved(ImageCapture.OutputFileResults)} when done.
+   *
+   * <p> The value of {@link ImageCapture.Metadata#isReversedHorizontal()} in the
+   * {@link ImageCapture.OutputFileOptions} will be overwritten based on camera direction. For
+   * front camera, it will be set to true; for back camera, it will be set to false.
+   *
+   * @param outputFileOptions Options to store the newly captured image.
+   * @param executor          The executor in which the callback methods will be run.
+   * @param callback          Callback which will receive success or failure.
+   */
+  public void takePicture(@NonNull ImageCapture.OutputFileOptions outputFileOptions,
+                          @NonNull Executor executor,
+                          @NonNull OnImageSavedCallback callback) {
+    mCameraModule.takePicture(outputFileOptions, executor, callback);
+  }
+
   /**
    * Takes a video and calls the OnVideoSavedCallback when done.
    *
-   * @param file     The destination.
-   * @param executor The executor in which the callback methods will be run.
-   * @param callback Callback which will receive success or failure.
+   * @param outputFileOptions     Options to store the newly captured video.
+   * @param executor              The executor in which the callback methods will be run.
+   * @param callback              Callback which will receive success or failure.
    */
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
-  public void startRecording(// Begin Signal Custom Code Block
-                             @NonNull FileDescriptor file,
-                             // End Signal Custom Code Block
+  public void startRecording(@NonNull VideoCapture.OutputFileOptions outputFileOptions,
                              @NonNull Executor executor,
-                             @NonNull VideoCapture.OnVideoSavedCallback callback) {
-    mCameraModule.startRecording(file, executor, callback);
+                             @NonNull OnVideoSavedCallback callback) {
+    mCameraModule.startRecording(outputFileOptions, executor, callback);
   }
 
   /** Stops an in progress video. */
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
   public void stopRecording() {
     mCameraModule.stopRecording();
   }
@@ -554,7 +579,8 @@ public final class CameraXView extends FrameLayout {
         mDownEventTimestamp = System.currentTimeMillis();
         break;
       case MotionEvent.ACTION_UP:
-        if (delta() < ViewConfiguration.getLongPressTimeout()) {
+        if (delta() < ViewConfiguration.getLongPressTimeout()
+            && mCameraModule.isBoundToLifecycle()) {
           mUpEvent = event;
           performClick();
         }
@@ -578,19 +604,14 @@ public final class CameraXView extends FrameLayout {
     final float y = (mUpEvent != null) ? mUpEvent.getY() : getY() + getHeight() / 2f;
     mUpEvent = null;
 
-    CameraSelector cameraSelector =
-        new CameraSelector.Builder().requireLensFacing(
-            mCameraModule.getLensFacing()).build();
-
-    DisplayOrientedMeteringPointFactory pointFactory = new DisplayOrientedMeteringPointFactory(
-        getDisplay(), cameraSelector, mPreviewView.getWidth(), mPreviewView.getHeight());
-    float afPointWidth = 1.0f / 6.0f;  // 1/6 total area
-    float aePointWidth = afPointWidth * 1.5f;
-    MeteringPoint afPoint = pointFactory.createPoint(x, y, afPointWidth);
-    MeteringPoint aePoint = pointFactory.createPoint(x, y, aePointWidth);
-
     Camera camera = mCameraModule.getCamera();
     if (camera != null) {
+      MeteringPointFactory pointFactory = mPreviewView.getMeteringPointFactory();
+      float afPointWidth = 1.0f / 6.0f;  // 1/6 total area
+      float aePointWidth = afPointWidth * 1.5f;
+      MeteringPoint afPoint = pointFactory.createPoint(x, y, afPointWidth);
+      MeteringPoint aePoint = pointFactory.createPoint(x, y, aePointWidth);
+
       ListenableFuture<FocusMeteringResult> future =
           camera.getCameraControl().startFocusAndMetering(
               new FocusMeteringAction.Builder(afPoint,
@@ -609,7 +630,7 @@ public final class CameraXView extends FrameLayout {
       }, CameraXExecutors.directExecutor());
 
     } else {
-      Log.d(TAG, "cannot access camera");
+      Logger.d(TAG, "cannot access camera");
     }
 
     return true;
@@ -711,45 +732,11 @@ public final class CameraXView extends FrameLayout {
     return mCameraModule.isTorchOn();
   }
 
-  /** Options for scaling the bounds of the view finder to the bounds of this view. */
-  public enum ScaleType {
-    /**
-     * Scale the view finder, maintaining the source aspect ratio, so the view finder fills the
-     * entire view. This will cause the view finder to crop the source image if the camera
-     * aspect ratio does not match the view aspect ratio.
-     */
-    CENTER_CROP(0),
-    /**
-     * Scale the view finder, maintaining the source aspect ratio, so the view finder is
-     * entirely contained within the view.
-     */
-    CENTER_INSIDE(1);
-
-    private final int mId;
-
-    int getId() {
-      return mId;
-    }
-
-    ScaleType(int id) {
-      mId = id;
-    }
-
-    static ScaleType fromId(int id) {
-      for (ScaleType st : values()) {
-        if (st.mId == id) {
-          return st;
-        }
-      }
-      throw new IllegalArgumentException();
-    }
-  }
-
   /**
    * The capture mode used by CameraView.
    *
    * <p>This enum can be used to determine which capture mode will be enabled for {@link
-   * CameraXView}.
+   * SignalCameraView}.
    */
   public enum CaptureMode {
     /** A mode where image capture is enabled. */
@@ -832,4 +819,4 @@ public final class CameraXView extends FrameLayout {
     public void onScaleEnd(ScaleGestureDetector detector) {
     }
   }
-}
+}

app/src/main/java/androidx/camera/view/SignalCameraXModule.java

@@ -14,13 +14,14 @@
  * limitations under the License.
  */
 
-package org.thoughtcrime.securesms.mediasend.camerax;
+package androidx.camera.view;
+
+import static androidx.camera.core.ImageCapture.FLASH_MODE_OFF;
 
 import android.Manifest.permission;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.res.Resources;
-import android.util.Log;
 import android.util.Rational;
 import android.util.Size;
 
@@ -30,16 +31,19 @@ import androidx.annotation.RequiresApi;
 import androidx.annotation.RequiresPermission;
 import androidx.camera.core.AspectRatio;
 import androidx.camera.core.Camera;
+import androidx.camera.core.CameraInfoUnavailableException;
 import androidx.camera.core.CameraSelector;
-import androidx.camera.core.CameraX;
 import androidx.camera.core.ImageCapture;
 import androidx.camera.core.ImageCapture.OnImageCapturedCallback;
+import androidx.camera.core.ImageCapture.OnImageSavedCallback;
+import androidx.camera.core.Logger;
 import androidx.camera.core.Preview;
 import androidx.camera.core.TorchState;
 import androidx.camera.core.UseCase;
+import androidx.camera.core.VideoCapture;
+import androidx.camera.core.VideoCapture.OnVideoSavedCallback;
 import androidx.camera.core.impl.CameraInternal;
 import androidx.camera.core.impl.LensFacingConverter;
-import androidx.camera.core.impl.VideoCaptureConfig;
 import androidx.camera.core.impl.utils.CameraOrientationUtil;
 import androidx.camera.core.impl.utils.executor.CameraXExecutors;
 import androidx.camera.core.impl.utils.futures.FutureCallback;
@@ -53,10 +57,10 @@ import androidx.lifecycle.OnLifecycleEvent;
 
 import com.google.common.util.concurrent.ListenableFuture;
 
+import org.thoughtcrime.securesms.mediasend.camerax.CameraXUtil;
 import org.thoughtcrime.securesms.mms.MediaConstraints;
 import org.thoughtcrime.securesms.video.VideoUtil;
 
-import java.io.FileDescriptor;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.LinkedHashSet;
@@ -66,13 +70,10 @@ import java.util.Set;
 import java.util.concurrent.Executor;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import static androidx.camera.core.ImageCapture.FLASH_MODE_OFF;
-
 /** CameraX use case operation built on @{link androidx.camera.core}. */
-// Begin Signal Custom Code Block
 @RequiresApi(21)
-// End Signal Custom Code Block
-final class CameraXModule {
+@SuppressLint("RestrictedApi")
+final class SignalCameraXModule {
   public static final String TAG = "CameraXModule";
 
   private static final float UNITY_ZOOM_SCALE = 1f;
@@ -83,13 +84,13 @@ final class CameraXModule {
   private static final Rational ASPECT_RATIO_3_4 = new Rational(3, 4);
 
   private final Preview.Builder mPreviewBuilder;
-  private final VideoCaptureConfig.Builder mVideoCaptureConfigBuilder;
+  private final VideoCapture.Builder mVideoCaptureBuilder;
   private final ImageCapture.Builder mImageCaptureBuilder;
-  private final CameraXView mCameraXView;
+  private final SignalCameraView mCameraView;
   final AtomicBoolean mVideoIsRecording = new AtomicBoolean(false);
-  private CameraXView.CaptureMode mCaptureMode = CameraXView.CaptureMode.IMAGE;
-  private long mMaxVideoDuration = CameraXView.INDEFINITE_VIDEO_DURATION;
-  private long mMaxVideoSize = CameraXView.INDEFINITE_VIDEO_SIZE;
+  private SignalCameraView.CaptureMode mCaptureMode = SignalCameraView.CaptureMode.IMAGE;
+  private long mMaxVideoDuration = SignalCameraView.INDEFINITE_VIDEO_DURATION;
+  private long mMaxVideoSize = SignalCameraView.INDEFINITE_VIDEO_SIZE;
   @ImageCapture.FlashMode
   private int mFlash = FLASH_MODE_OFF;
   @Nullable
@@ -111,7 +112,6 @@ final class CameraXModule {
         public void onDestroy(LifecycleOwner owner) {
           if (owner == mCurrentLifecycle) {
             clearCurrentLifecycle();
-            mPreview.setSurfaceProvider(null);
           }
         }
       };
@@ -124,8 +124,8 @@ final class CameraXModule {
   @Nullable
   ProcessCameraProvider mCameraProvider;
 
-  CameraXModule(CameraXView view) {
-    mCameraXView = view;
+  SignalCameraXModule(SignalCameraView view) {
+    mCameraView = view;
 
     Futures.addCallback(ProcessCameraProvider.getInstance(view.getContext()),
         new FutureCallback<ProcessCameraProvider>() {
@@ -150,14 +150,12 @@ final class CameraXModule {
 
     mImageCaptureBuilder = new ImageCapture.Builder().setTargetName("ImageCapture");
 
-    // Begin Signal Custom Code Block
-    mVideoCaptureConfigBuilder =
-        new VideoCaptureConfig.Builder().setTargetName("VideoCapture")
-                                        .setAudioBitRate(VideoUtil.AUDIO_BIT_RATE)
-                                        .setVideoFrameRate(VideoUtil.VIDEO_FRAME_RATE)
-                                        .setBitRate(VideoUtil.VIDEO_BIT_RATE);
-    // End Signal Custom Code Block
+    mVideoCaptureBuilder = new VideoCapture.Builder().setTargetName("VideoCapture")
+                                                     .setAudioBitRate(VideoUtil.AUDIO_BIT_RATE)
+                                                     .setVideoFrameRate(VideoUtil.VIDEO_FRAME_RATE)
+                                                     .setBitRate(VideoUtil.VIDEO_BIT_RATE);
   }
+
   @RequiresPermission(permission.CAMERA)
   void bindToLifecycle(LifecycleOwner lifecycleOwner) {
     mNewLifecycle = lifecycleOwner;
@@ -174,12 +172,15 @@ final class CameraXModule {
     }
 
     clearCurrentLifecycle();
+    if (mNewLifecycle.getLifecycle().getCurrentState() == Lifecycle.State.DESTROYED) {
+      // Lifecycle is already in a destroyed state. Since it may have been a valid
+      // lifecycle when bound, but became destroyed while waiting for layout, treat this as
+      // a no-op now that we have cleared the previous lifecycle.
+      mNewLifecycle = null;
+      return;
+    }
     mCurrentLifecycle = mNewLifecycle;
     mNewLifecycle = null;
-    if (mCurrentLifecycle.getLifecycle().getCurrentState() == Lifecycle.State.DESTROYED) {
-      mCurrentLifecycle = null;
-      throw new IllegalArgumentException("Cannot bind to lifecycle in a destroyed state.");
-    }
 
     if (mCameraProvider == null) {
       // try again once the camera provider is no longer null
@@ -189,18 +190,18 @@ final class CameraXModule {
     Set<Integer> available = getAvailableCameraLensFacing();
 
     if (available.isEmpty()) {
-      Log.w(TAG, "Unable to bindToLifeCycle since no cameras available");
+      Logger.w(TAG, "Unable to bindToLifeCycle since no cameras available");
       mCameraLensFacing = null;
     }
 
     // Ensure the current camera exists, or default to another camera
     if (mCameraLensFacing != null && !available.contains(mCameraLensFacing)) {
-      Log.w(TAG, "Camera does not exist with direction " + mCameraLensFacing);
+      Logger.w(TAG, "Camera does not exist with direction " + mCameraLensFacing);
 
       // Default to the first available camera direction
       mCameraLensFacing = available.iterator().next();
 
-      Log.w(TAG, "Defaulting to primary camera with direction " + mCameraLensFacing);
+      Logger.w(TAG, "Defaulting to primary camera with direction " + mCameraLensFacing);
     }
 
     // Do not attempt to create use cases for a null cameraLensFacing. This could occur if
@@ -217,14 +218,12 @@ final class CameraXModule {
     boolean isDisplayPortrait = getDisplayRotationDegrees() == 0
         || getDisplayRotationDegrees() == 180;
 
-    Rational targetAspectRatio;
-
     // Begin Signal Custom Code Block
     int resolution = CameraXUtil.getIdealResolution(Resources.getSystem().getDisplayMetrics().widthPixels, Resources.getSystem().getDisplayMetrics().heightPixels);
     // End Signal Custom Code Block
 
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
-//      mImageCaptureBuilder.setTargetAspectRatio(AspectRatio.RATIO_4_3);
+    Rational targetAspectRatio;
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       // Begin Signal Custom Code Block
       mImageCaptureBuilder.setTargetResolution(CameraXUtil.buildResolutionForRatio(resolution, ASPECT_RATIO_4_3, isDisplayPortrait));
       // End Signal Custom Code Block
@@ -233,7 +232,6 @@ final class CameraXModule {
       // Begin Signal Custom Code Block
       mImageCaptureBuilder.setTargetResolution(CameraXUtil.buildResolutionForRatio(resolution, ASPECT_RATIO_16_9, isDisplayPortrait));
       // End Signal Custom Code Block
-//      mImageCaptureBuilder.setTargetAspectRatio(AspectRatio.RATIO_16_9);
       targetAspectRatio = isDisplayPortrait ? ASPECT_RATIO_9_16 : ASPECT_RATIO_16_9;
     }
 
@@ -246,15 +244,14 @@ final class CameraXModule {
 
     // Begin Signal Custom Code Block
     Size size = VideoUtil.getVideoRecordingSize();
-    mVideoCaptureConfigBuilder.setTargetResolution(size);
-    mVideoCaptureConfigBuilder.setMaxResolution(size);
+    mVideoCaptureBuilder.setTargetResolution(size);
+    mVideoCaptureBuilder.setMaxResolution(size);
     // End Signal Custom Code Block
 
-    mVideoCaptureConfigBuilder.setTargetRotation(getDisplaySurfaceRotation());
-
+    mVideoCaptureBuilder.setTargetRotation(getDisplaySurfaceRotation());
     // Begin Signal Custom Code Block
     if (MediaConstraints.isVideoTranscodeAvailable()) {
-      mVideoCapture = new VideoCapture(mVideoCaptureConfigBuilder.getUseCaseConfig());
+      mVideoCapture = mVideoCaptureBuilder.build();
     }
     // End Signal Custom Code Block
 
@@ -263,15 +260,15 @@ final class CameraXModule {
     mPreviewBuilder.setTargetResolution(new Size(getMeasuredWidth(), height));
 
     mPreview = mPreviewBuilder.build();
-    mPreview.setSurfaceProvider(mCameraXView.getPreviewView().getPreviewSurfaceProvider());
+    mPreview.setSurfaceProvider(mCameraView.getPreviewView().getSurfaceProvider());
 
     CameraSelector cameraSelector =
         new CameraSelector.Builder().requireLensFacing(mCameraLensFacing).build();
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       mCamera = mCameraProvider.bindToLifecycle(mCurrentLifecycle, cameraSelector,
           mImageCapture,
           mPreview);
-    } else if (getCaptureMode() == CameraXView.CaptureMode.VIDEO) {
+    } else if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
       mCamera = mCameraProvider.bindToLifecycle(mCurrentLifecycle, cameraSelector,
           mVideoCapture,
           mPreview);
@@ -302,7 +299,7 @@ final class CameraXModule {
       return;
     }
 
-    if (getCaptureMode() == CameraXView.CaptureMode.VIDEO) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
       throw new IllegalStateException("Can not take picture under VIDEO capture mode.");
     }
 
@@ -313,17 +310,32 @@ final class CameraXModule {
     mImageCapture.takePicture(executor, callback);
   }
 
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  public void startRecording(FileDescriptor file,
-                             // End Signal Custom Code Block
-                             Executor executor,
-                             final VideoCapture.OnVideoSavedCallback callback) {
+  public void takePicture(@NonNull ImageCapture.OutputFileOptions outputFileOptions,
+                          @NonNull Executor executor, OnImageSavedCallback callback) {
+    if (mImageCapture == null) {
+      return;
+    }
+
+    if (getCaptureMode() == SignalCameraView.CaptureMode.VIDEO) {
+      throw new IllegalStateException("Can not take picture under VIDEO capture mode.");
+    }
+
+    if (callback == null) {
+      throw new IllegalArgumentException("OnImageSavedCallback should not be empty");
+    }
+
+    outputFileOptions.getMetadata().setReversedHorizontal(mCameraLensFacing != null
+        && mCameraLensFacing == CameraSelector.LENS_FACING_FRONT);
+    mImageCapture.takePicture(outputFileOptions, executor, callback);
+  }
+
+  public void startRecording(VideoCapture.OutputFileOptions outputFileOptions,
+                             Executor executor, final OnVideoSavedCallback callback) {
     if (mVideoCapture == null) {
       return;
     }
 
-    if (getCaptureMode() == CameraXView.CaptureMode.IMAGE) {
+    if (getCaptureMode() == SignalCameraView.CaptureMode.IMAGE) {
       throw new IllegalStateException("Can not record video under IMAGE capture mode.");
     }
 
@@ -333,15 +345,14 @@ final class CameraXModule {
 
     mVideoIsRecording.set(true);
     mVideoCapture.startRecording(
-        file,
+        outputFileOptions,
         executor,
         new VideoCapture.OnVideoSavedCallback() {
           @Override
-          // Begin Signal Custom Code Block
-          public void onVideoSaved(@NonNull FileDescriptor savedFile) {
-          // End Signal Custom Code Block
+          public void onVideoSaved(
+              @NonNull VideoCapture.OutputFileResults outputFileResults) {
             mVideoIsRecording.set(false);
-            callback.onVideoSaved(savedFile);
+            callback.onVideoSaved(outputFileResults);
           }
 
           @Override
@@ -350,15 +361,12 @@ final class CameraXModule {
               @NonNull String message,
               @Nullable Throwable cause) {
             mVideoIsRecording.set(false);
-            Log.e(TAG, message, cause);
+            Logger.e(TAG, message, cause);
             callback.onError(videoCaptureError, message, cause);
           }
         });
   }
 
-  // Begin Signal Custom Code Block
-  @RequiresApi(26)
-  // End Signal Custom Code Block
   public void stopRecording() {
     if (mVideoCapture == null) {
       return;
@@ -389,14 +397,15 @@ final class CameraXModule {
 
   @RequiresPermission(permission.CAMERA)
   public boolean hasCameraWithLensFacing(@CameraSelector.LensFacing int lensFacing) {
-    String cameraId;
-    try {
-      cameraId = CameraX.getCameraWithLensFacing(lensFacing);
-    } catch (Exception e) {
-      throw new IllegalStateException("Unable to query lens facing.", e);
+    if (mCameraProvider == null) {
+      return false;
+    }
+    try {
+      return mCameraProvider.hasCamera(
+          new CameraSelector.Builder().requireLensFacing(lensFacing).build());
+    } catch (CameraInfoUnavailableException e) {
+      return false;
     }
-
-    return cameraId != null;
   }
 
   @Nullable
@@ -455,7 +464,7 @@ final class CameraXModule {
         }
       }, CameraXExecutors.directExecutor());
     } else {
-      Log.e(TAG, "Failed to set zoom ratio");
+      Logger.e(TAG, "Failed to set zoom ratio");
     }
   }
 
@@ -487,6 +496,10 @@ final class CameraXModule {
     }
   }
 
+  boolean isBoundToLifecycle() {
+    return mCamera != null;
+  }
+
   int getRelativeCameraOrientation(boolean compensateForMirroring) {
     int rotationDegrees = 0;
     if (mCamera != null) {
@@ -521,6 +534,11 @@ final class CameraXModule {
       if (!toUnbind.isEmpty()) {
         mCameraProvider.unbind(toUnbind.toArray((new UseCase[0])));
       }
+
+      // Remove surface provider once unbound.
+      if (mPreview != null) {
+        mPreview.setSurfaceProvider(null);
+      }
     }
     mCamera = null;
     mCurrentLifecycle = null;
@@ -533,7 +551,7 @@ final class CameraXModule {
       mImageCapture.setTargetRotation(getDisplaySurfaceRotation());
     }
 
-    if (mVideoCapture != null && MediaConstraints.isVideoTranscodeAvailable()) {
+    if (mVideoCapture != null) {
       mVideoCapture.setTargetRotation(getDisplaySurfaceRotation());
     }
   }
@@ -568,7 +586,7 @@ final class CameraXModule {
       return false;
     }
 
-    CameraInternal camera = mImageCapture.getBoundCamera();
+    CameraInternal camera = mImageCapture.getCamera();
 
     if (camera == null) {
       return false;
@@ -615,15 +633,15 @@ final class CameraXModule {
   }
 
   public Context getContext() {
-    return mCameraXView.getContext();
+    return mCameraView.getContext();
   }
 
   public int getWidth() {
-    return mCameraXView.getWidth();
+    return mCameraView.getWidth();
   }
 
   public int getHeight() {
-    return mCameraXView.getHeight();
+    return mCameraView.getHeight();
   }
 
   public int getDisplayRotationDegrees() {
@@ -631,15 +649,15 @@ final class CameraXModule {
   }
 
   protected int getDisplaySurfaceRotation() {
-    return mCameraXView.getDisplaySurfaceRotation();
+    return mCameraView.getDisplaySurfaceRotation();
   }
 
   private int getMeasuredWidth() {
-    return mCameraXView.getMeasuredWidth();
+    return mCameraView.getMeasuredWidth();
   }
 
   private int getMeasuredHeight() {
-    return mCameraXView.getMeasuredHeight();
+    return mCameraView.getMeasuredHeight();
   }
 
   @Nullable
@@ -648,11 +666,11 @@ final class CameraXModule {
   }
 
   @NonNull
-  public CameraXView.CaptureMode getCaptureMode() {
+  public SignalCameraView.CaptureMode getCaptureMode() {
     return mCaptureMode;
   }
 
-  public void setCaptureMode(@NonNull CameraXView.CaptureMode captureMode) {
+  public void setCaptureMode(@NonNull SignalCameraView.CaptureMode captureMode) {
     this.mCaptureMode = captureMode;
     rebindToLifecycle();
   }

app/src/main/java/org/signal/glide/Log.java

@@ -0,0 +1,58 @@
+package org.signal.glide;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+public final class Log {
+
+  private Log() {}
+
+  public static void v(@NonNull String tag, @NonNull String message) {
+    SignalGlideCodecs.getLogProvider().v(tag, message);
+  }
+
+  public static void d(@NonNull String tag, @NonNull String message) {
+    SignalGlideCodecs.getLogProvider().d(tag, message);
+  }
+
+  public static void i(@NonNull String tag, @NonNull String message) {
+    SignalGlideCodecs.getLogProvider().i(tag, message);
+  }
+
+  public static void w(@NonNull String tag, @NonNull String message) {
+    SignalGlideCodecs.getLogProvider().w(tag, message);
+  }
+
+  public static void e(@NonNull String tag, @NonNull String message) {
+    e(tag, message, null);
+  }
+
+  public static void e(@NonNull String tag, @NonNull String message, @Nullable Throwable throwable) {
+    SignalGlideCodecs.getLogProvider().e(tag, message, throwable);
+  }
+
+  public interface Provider {
+    void v(@NonNull String tag, @NonNull String message);
+    void d(@NonNull String tag, @NonNull String message);
+    void i(@NonNull String tag, @NonNull String message);
+    void w(@NonNull String tag, @NonNull String message);
+    void e(@NonNull String tag, @NonNull String message, @Nullable Throwable throwable);
+
+    Provider EMPTY = new Provider() {
+      @Override
+      public void v(@NonNull String tag, @NonNull String message) { }
+
+      @Override
+      public void d(@NonNull String tag, @NonNull String message) { }
+
+      @Override
+      public void i(@NonNull String tag, @NonNull String message) { }
+
+      @Override
+      public void w(@NonNull String tag, @NonNull String message) { }
+
+      @Override
+      public void e(@NonNull String tag, @NonNull String message, @NonNull Throwable throwable) { }
+    };
+  }
+}

app/src/main/java/org/signal/glide/SignalGlideCodecs.java

@@ -0,0 +1,18 @@
+package org.signal.glide;
+
+import androidx.annotation.NonNull;
+
+public final class SignalGlideCodecs {
+
+  private static Log.Provider logProvider = Log.Provider.EMPTY;
+
+  private SignalGlideCodecs() {}
+
+  public static void setLogProvider(@NonNull Log.Provider provider) {
+    logProvider = provider;
+  }
+
+  public static @NonNull Log.Provider getLogProvider() {
+    return logProvider;
+  }
+}

app/src/main/java/org/signal/glide/apng/APNGDrawable.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng;
+
+import android.content.Context;
+
+import org.signal.glide.common.FrameAnimationDrawable;
+import org.signal.glide.apng.decode.APNGDecoder;
+import org.signal.glide.common.decode.FrameSeqDecoder;
+import org.signal.glide.common.loader.AssetStreamLoader;
+import org.signal.glide.common.loader.FileLoader;
+import org.signal.glide.common.loader.Loader;
+import org.signal.glide.common.loader.ResourceStreamLoader;
+
+/**
+ * @Description: APNGDrawable
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+public class APNGDrawable extends FrameAnimationDrawable<APNGDecoder> {
+    public APNGDrawable(Loader provider) {
+        super(provider);
+    }
+
+    public APNGDrawable(APNGDecoder decoder) {
+        super(decoder);
+    }
+
+    @Override
+    protected APNGDecoder createFrameSeqDecoder(Loader streamLoader, FrameSeqDecoder.RenderListener listener) {
+        return new APNGDecoder(streamLoader, listener);
+    }
+
+
+    public static APNGDrawable fromAsset(Context context, String assetPath) {
+        AssetStreamLoader assetStreamLoader = new AssetStreamLoader(context, assetPath);
+        return new APNGDrawable(assetStreamLoader);
+    }
+
+    public static APNGDrawable fromFile(String filePath) {
+        FileLoader fileLoader = new FileLoader(filePath);
+        return new APNGDrawable(fileLoader);
+    }
+
+    public static APNGDrawable fromResource(Context context, int resId) {
+        ResourceStreamLoader resourceStreamLoader = new ResourceStreamLoader(context, resId);
+        return new APNGDrawable(resourceStreamLoader);
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/ACTLChunk.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import org.signal.glide.apng.io.APNGReader;
+
+import java.io.IOException;
+
+/**
+ * @Description: https://developer.mozilla.org/en-US/docs/Mozilla/Tech/APNG#.27acTL.27:_The_Animation_Control_Chunk
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class ACTLChunk extends Chunk {
+    static final int ID = fourCCToInt("acTL");
+    int num_frames;
+    int num_plays;
+
+    @Override
+    void innerParse(APNGReader apngReader) throws IOException {
+        num_frames = apngReader.readInt();
+        num_plays = apngReader.readInt();
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/APNGDecoder.java

@@ -0,0 +1,211 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.PorterDuff;
+import android.graphics.Rect;
+
+import org.signal.glide.Log;
+import org.signal.glide.apng.io.APNGReader;
+import org.signal.glide.apng.io.APNGWriter;
+import org.signal.glide.common.decode.Frame;
+import org.signal.glide.common.decode.FrameSeqDecoder;
+import org.signal.glide.common.io.Reader;
+import org.signal.glide.common.loader.Loader;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @Description: APNG4Android
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class APNGDecoder extends FrameSeqDecoder<APNGReader, APNGWriter> {
+
+    private static final String TAG = APNGDecoder.class.getSimpleName();
+
+    private APNGWriter apngWriter;
+    private int mLoopCount;
+    private final Paint paint = new Paint();
+
+
+    private class SnapShot {
+        byte dispose_op;
+        Rect dstRect = new Rect();
+        ByteBuffer byteBuffer;
+    }
+
+    private SnapShot snapShot = new SnapShot();
+
+    /**
+     * @param loader         webp的reader
+     * @param renderListener 渲染的回调
+     */
+    public APNGDecoder(Loader loader, FrameSeqDecoder.RenderListener renderListener) {
+        super(loader, renderListener);
+        paint.setAntiAlias(true);
+    }
+
+    @Override
+    protected APNGWriter getWriter() {
+        if (apngWriter == null) {
+            apngWriter = new APNGWriter();
+        }
+        return apngWriter;
+    }
+
+    @Override
+    protected APNGReader getReader(Reader reader) {
+        return new APNGReader(reader);
+    }
+
+    @Override
+    protected int getLoopCount() {
+        return mLoopCount;
+    }
+
+    @Override
+    protected void release() {
+        snapShot.byteBuffer = null;
+        apngWriter = null;
+    }
+
+
+    @Override
+    protected Rect read(APNGReader reader) throws IOException {
+        List<Chunk> chunks = APNGParser.parse(reader);
+        List<Chunk> otherChunks = new ArrayList<>();
+
+        boolean actl = false;
+        APNGFrame lastFrame = null;
+        byte[] ihdrData = new byte[0];
+        int canvasWidth = 0, canvasHeight = 0;
+        for (Chunk chunk : chunks) {
+            if (chunk instanceof ACTLChunk) {
+                mLoopCount = ((ACTLChunk) chunk).num_plays;
+                actl = true;
+            } else if (chunk instanceof FCTLChunk) {
+                APNGFrame frame = new APNGFrame(reader, (FCTLChunk) chunk);
+                frame.prefixChunks = otherChunks;
+                frame.ihdrData = ihdrData;
+                frames.add(frame);
+                lastFrame = frame;
+            } else if (chunk instanceof FDATChunk) {
+                if (lastFrame != null) {
+                    lastFrame.imageChunks.add(chunk);
+                }
+            } else if (chunk instanceof IDATChunk) {
+                if (!actl) {
+                    //如果为非APNG图片，则只解码PNG
+                    Frame frame = new StillFrame(reader);
+                    frame.frameWidth = canvasWidth;
+                    frame.frameHeight = canvasHeight;
+                    frames.add(frame);
+                    mLoopCount = 1;
+                    break;
+                }
+                if (lastFrame != null) {
+                    lastFrame.imageChunks.add(chunk);
+                }
+
+            } else if (chunk instanceof IHDRChunk) {
+                canvasWidth = ((IHDRChunk) chunk).width;
+                canvasHeight = ((IHDRChunk) chunk).height;
+                ihdrData = ((IHDRChunk) chunk).data;
+            } else if (!(chunk instanceof IENDChunk)) {
+                otherChunks.add(chunk);
+            }
+        }
+        frameBuffer = ByteBuffer.allocate((canvasWidth * canvasHeight / (sampleSize * sampleSize) + 1) * 4);
+        snapShot.byteBuffer = ByteBuffer.allocate((canvasWidth * canvasHeight / (sampleSize * sampleSize) + 1) * 4);
+        return new Rect(0, 0, canvasWidth, canvasHeight);
+    }
+
+    @Override
+    protected void renderFrame(Frame frame) {
+        if (frame == null || fullRect == null) {
+            return;
+        }
+        try {
+            Bitmap bitmap = obtainBitmap(fullRect.width() / sampleSize, fullRect.height() / sampleSize);
+            Canvas canvas = cachedCanvas.get(bitmap);
+            if (canvas == null) {
+                canvas = new Canvas(bitmap);
+                cachedCanvas.put(bitmap, canvas);
+            }
+            if (frame instanceof APNGFrame) {
+                // 从缓存中恢复当前帧
+                frameBuffer.rewind();
+                bitmap.copyPixelsFromBuffer(frameBuffer);
+                // 开始绘制前，处理快照中的设定
+                if (this.frameIndex == 0) {
+                    canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
+                } else {
+                    canvas.save();
+                    canvas.clipRect(snapShot.dstRect);
+                    switch (snapShot.dispose_op) {
+                        // 从快照中恢复上一帧之前的显示内容
+                        case FCTLChunk.APNG_DISPOSE_OP_PREVIOUS:
+                            snapShot.byteBuffer.rewind();
+                            bitmap.copyPixelsFromBuffer(snapShot.byteBuffer);
+                            break;
+                        // 清空上一帧所画区域
+                        case FCTLChunk.APNG_DISPOSE_OP_BACKGROUND:
+                            canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
+                            break;
+                        // 什么都不做
+                        case FCTLChunk.APNG_DISPOSE_OP_NON:
+                        default:
+                            break;
+                    }
+                    canvas.restore();
+                }
+
+                // 然后根据dispose设定传递到快照信息中
+                if (((APNGFrame) frame).dispose_op == FCTLChunk.APNG_DISPOSE_OP_PREVIOUS) {
+                    if (snapShot.dispose_op != FCTLChunk.APNG_DISPOSE_OP_PREVIOUS) {
+                        snapShot.byteBuffer.rewind();
+                        bitmap.copyPixelsToBuffer(snapShot.byteBuffer);
+                    }
+                }
+
+                snapShot.dispose_op = ((APNGFrame) frame).dispose_op;
+                canvas.save();
+                if (((APNGFrame) frame).blend_op == FCTLChunk.APNG_BLEND_OP_SOURCE) {
+                    canvas.clipRect(
+                            frame.frameX / sampleSize,
+                            frame.frameY / sampleSize,
+                            (frame.frameX + frame.frameWidth) / sampleSize,
+                            (frame.frameY + frame.frameHeight) / sampleSize);
+                    canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
+                }
+
+
+                snapShot.dstRect.set(frame.frameX / sampleSize,
+                        frame.frameY / sampleSize,
+                        (frame.frameX + frame.frameWidth) / sampleSize,
+                        (frame.frameY + frame.frameHeight) / sampleSize);
+                canvas.restore();
+            }
+            //开始真正绘制当前帧的内容
+            Bitmap inBitmap = obtainBitmap(frame.frameWidth, frame.frameHeight);
+            recycleBitmap(frame.draw(canvas, paint, sampleSize, inBitmap, getWriter()));
+            recycleBitmap(inBitmap);
+            frameBuffer.rewind();
+            bitmap.copyPixelsToBuffer(frameBuffer);
+            recycleBitmap(bitmap);
+        } catch (Throwable t) {
+            Log.e(TAG, "Failed to render!", t);
+        }
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/APNGFrame.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+
+import org.signal.glide.apng.io.APNGReader;
+import org.signal.glide.apng.io.APNGWriter;
+import org.signal.glide.common.decode.Frame;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.zip.CRC32;
+
+/**
+ * @Description: APNG4Android
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class APNGFrame extends Frame<APNGReader, APNGWriter> {
+    public final byte blend_op;
+    public final byte dispose_op;
+    byte[] ihdrData;
+    List<Chunk> imageChunks = new ArrayList<>();
+    List<Chunk> prefixChunks = new ArrayList<>();
+    private static final byte[] sPNGSignatures = {(byte) 137, 80, 78, 71, 13, 10, 26, 10};
+    private static final byte[] sPNGEndChunk = {0, 0, 0, 0, 0x49, 0x45, 0x4E, 0x44, (byte) 0xAE, 0x42, 0x60, (byte) 0x82};
+
+    private static ThreadLocal<CRC32> sCRC32 = new ThreadLocal<>();
+
+    private CRC32 getCRC32() {
+        CRC32 crc32 = sCRC32.get();
+        if (crc32 == null) {
+            crc32 = new CRC32();
+            sCRC32.set(crc32);
+        }
+        return crc32;
+    }
+
+    public APNGFrame(APNGReader reader, FCTLChunk fctlChunk) {
+        super(reader);
+        blend_op = fctlChunk.blend_op;
+        dispose_op = fctlChunk.dispose_op;
+        frameDuration = fctlChunk.delay_num * 1000 / (fctlChunk.delay_den == 0 ? 100 : fctlChunk.delay_den);
+        frameWidth = fctlChunk.width;
+        frameHeight = fctlChunk.height;
+        frameX = fctlChunk.x_offset;
+        frameY = fctlChunk.y_offset;
+    }
+
+    private int encode(APNGWriter apngWriter) throws IOException {
+        int fileSize = 8 + 13 + 12;
+
+        //prefixChunks
+        for (Chunk chunk : prefixChunks) {
+            fileSize += chunk.length + 12;
+        }
+
+        //imageChunks
+        for (Chunk chunk : imageChunks) {
+            if (chunk instanceof IDATChunk) {
+                fileSize += chunk.length + 12;
+            } else if (chunk instanceof FDATChunk) {
+                fileSize += chunk.length + 8;
+            }
+        }
+        fileSize += sPNGEndChunk.length;
+        apngWriter.reset(fileSize);
+        apngWriter.putBytes(sPNGSignatures);
+        //IHDR Chunk
+        apngWriter.writeInt(13);
+        int start = apngWriter.position();
+        apngWriter.writeFourCC(IHDRChunk.ID);
+        apngWriter.writeInt(frameWidth);
+        apngWriter.writeInt(frameHeight);
+        apngWriter.putBytes(ihdrData);
+        CRC32 crc32 = getCRC32();
+        crc32.reset();
+        crc32.update(apngWriter.toByteArray(), start, 17);
+        apngWriter.writeInt((int) crc32.getValue());
+
+        //prefixChunks
+        for (Chunk chunk : prefixChunks) {
+            if (chunk instanceof IENDChunk) {
+                continue;
+            }
+            reader.reset();
+            reader.skip(chunk.offset);
+            reader.read(apngWriter.toByteArray(), apngWriter.position(), chunk.length + 12);
+            apngWriter.skip(chunk.length + 12);
+        }
+        //imageChunks
+        for (Chunk chunk : imageChunks) {
+            if (chunk instanceof IDATChunk) {
+                reader.reset();
+                reader.skip(chunk.offset);
+                reader.read(apngWriter.toByteArray(), apngWriter.position(), chunk.length + 12);
+                apngWriter.skip(chunk.length + 12);
+            } else if (chunk instanceof FDATChunk) {
+                apngWriter.writeInt(chunk.length - 4);
+                start = apngWriter.position();
+                apngWriter.writeFourCC(IDATChunk.ID);
+
+                reader.reset();
+                // skip to fdat data position
+                reader.skip(chunk.offset + 4 + 4 + 4);
+                reader.read(apngWriter.toByteArray(), apngWriter.position(), chunk.length - 4);
+
+                apngWriter.skip(chunk.length - 4);
+                crc32.reset();
+                crc32.update(apngWriter.toByteArray(), start, chunk.length);
+                apngWriter.writeInt((int) crc32.getValue());
+            }
+        }
+        //endChunk
+        apngWriter.putBytes(sPNGEndChunk);
+        return fileSize;
+    }
+
+
+    @Override
+    public Bitmap draw(Canvas canvas, Paint paint, int sampleSize, Bitmap reusedBitmap, APNGWriter writer) {
+        try {
+            int length = encode(writer);
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = false;
+            options.inSampleSize = sampleSize;
+            options.inMutable = true;
+            options.inBitmap = reusedBitmap;
+            byte[] bytes = writer.toByteArray();
+            Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, length, options);
+            assert bitmap != null;
+            canvas.drawBitmap(bitmap, (float) frameX / sampleSize, (float) frameY / sampleSize, paint);
+            return bitmap;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/APNGParser.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import android.content.Context;
+
+import org.signal.glide.apng.io.APNGReader;
+import org.signal.glide.common.io.Reader;
+import org.signal.glide.common.io.StreamReader;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @link {https://www.w3.org/TR/PNG/#5PNG-file-signature}
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class APNGParser {
+    static class FormatException extends IOException {
+        FormatException() {
+            super("APNG Format error");
+        }
+    }
+
+    public static boolean isAPNG(String filePath) {
+        InputStream inputStream = null;
+        try {
+            inputStream = new FileInputStream(filePath);
+            return isAPNG(new StreamReader(inputStream));
+        } catch (Exception e) {
+            return false;
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public static boolean isAPNG(Context context, String assetPath) {
+        InputStream inputStream = null;
+        try {
+            inputStream = context.getAssets().open(assetPath);
+            return isAPNG(new StreamReader(inputStream));
+        } catch (Exception e) {
+            return false;
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public static boolean isAPNG(Context context, int resId) {
+        InputStream inputStream = null;
+        try {
+            inputStream = context.getResources().openRawResource(resId);
+            return isAPNG(new StreamReader(inputStream));
+        } catch (Exception e) {
+            return false;
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public static boolean isAPNG(Reader in) {
+        APNGReader reader = (in instanceof APNGReader) ? (APNGReader) in : new APNGReader(in);
+        try {
+            if (!reader.matchFourCC("\u0089PNG") || !reader.matchFourCC("\r\n\u001a\n")) {
+                throw new FormatException();
+            }
+            while (reader.available() > 0) {
+                Chunk chunk = parseChunk(reader);
+                if (chunk instanceof ACTLChunk) {
+                    return true;
+                }
+            }
+        } catch (IOException e) {
+            return false;
+        }
+        return false;
+    }
+
+    public static List<Chunk> parse(APNGReader reader) throws IOException {
+        if (!reader.matchFourCC("\u0089PNG") || !reader.matchFourCC("\r\n\u001a\n")) {
+            throw new FormatException();
+        }
+
+        List<Chunk> chunks = new ArrayList<>();
+        while (reader.available() > 0) {
+            chunks.add(parseChunk(reader));
+        }
+        return chunks;
+    }
+
+    private static Chunk parseChunk(APNGReader reader) throws IOException {
+        int offset = reader.position();
+        int size = reader.readInt();
+        int fourCC = reader.readFourCC();
+        Chunk chunk;
+        if (fourCC == ACTLChunk.ID) {
+            chunk = new ACTLChunk();
+        } else if (fourCC == FCTLChunk.ID) {
+            chunk = new FCTLChunk();
+        } else if (fourCC == FDATChunk.ID) {
+            chunk = new FDATChunk();
+        } else if (fourCC == IDATChunk.ID) {
+            chunk = new IDATChunk();
+        } else if (fourCC == IENDChunk.ID) {
+            chunk = new IENDChunk();
+        } else if (fourCC == IHDRChunk.ID) {
+            chunk = new IHDRChunk();
+        } else {
+            chunk = new Chunk();
+        }
+        chunk.offset = offset;
+        chunk.fourcc = fourCC;
+        chunk.length = size;
+        chunk.parse(reader);
+        chunk.crc = reader.readInt();
+        return chunk;
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/Chunk.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import android.text.TextUtils;
+
+import org.signal.glide.apng.io.APNGReader;
+
+import java.io.IOException;
+
+/**
+ * @Description: Length (长度)	4字节	指定数据块中数据域的长度，其长度不超过(231－1)字节
+ * Chunk Type Code (数据块类型码)	4字节	数据块类型码由ASCII字母(A-Z和a-z)组成
+ * Chunk Data (数据块数据)	可变长度	存储按照Chunk Type Code指定的数据
+ * CRC (循环冗余检测)	4字节	存储用来检测是否有错误的循环冗余码
+ * @Link https://www.w3.org/TR/PNG
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class Chunk {
+    int length;
+    int fourcc;
+    int crc;
+    int offset;
+
+    static int fourCCToInt(String fourCC) {
+        if (TextUtils.isEmpty(fourCC) || fourCC.length() != 4) {
+            return 0xbadeffff;
+        }
+        return (fourCC.charAt(0) & 0xff)
+                | (fourCC.charAt(1) & 0xff) << 8
+                | (fourCC.charAt(2) & 0xff) << 16
+                | (fourCC.charAt(3) & 0xff) << 24
+                ;
+    }
+
+    void parse(APNGReader reader) throws IOException {
+        int available = reader.available();
+        innerParse(reader);
+        int offset = available - reader.available();
+        if (offset > length) {
+            throw new IOException("Out of chunk area");
+        } else if (offset < length) {
+            reader.skip(length - offset);
+        }
+    }
+
+    void innerParse(APNGReader reader) throws IOException {
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/FCTLChunk.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import org.signal.glide.apng.io.APNGReader;
+
+import java.io.IOException;
+
+/**
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ * @see {link=https://developer.mozilla.org/en-US/docs/Mozilla/Tech/APNG#.27fcTL.27:_The_Frame_Control_Chunk}
+ */
+class FCTLChunk extends Chunk {
+    static final int ID = fourCCToInt("fcTL");
+    int sequence_number;
+    /**
+     * x_offset >= 0
+     * y_offset >= 0
+     * width > 0
+     * height > 0
+     * x_offset + width <= 'IHDR' width
+     * y_offset + height <= 'IHDR' height
+     */
+    /**
+     * Width of the following frame.
+     */
+    int width;
+    /**
+     * Height of the following frame.
+     */
+    int height;
+    /**
+     * X position at which to render the following frame.
+     */
+    int x_offset;
+    /**
+     * Y position at which to render the following frame.
+     */
+    int y_offset;
+
+    /**
+     * The delay_num and delay_den parameters together specify a fraction indicating the time to
+     * display the current frame, in seconds. If the denominator is 0, it is to be treated as if it
+     * were 100 (that is, delay_num then specifies 1/100ths of a second).
+     * If the the value of the numerator is 0 the decoder should render the next frame as quickly as
+     * possible, though viewers may impose a reasonable lower bound.
+     * <p>
+     * Frame timings should be independent of the time required for decoding and display of each frame,
+     * so that animations will run at the same rate regardless of the performance of the decoder implementation.
+     */
+
+    /**
+     * Frame delay fraction numerator.
+     */
+    short delay_num;
+
+    /**
+     * Frame delay fraction denominator.
+     */
+    short delay_den;
+
+    /**
+     * Type of frame area disposal to be done after rendering this frame.
+     * dispose_op specifies how the output buffer should be changed at the end of the delay (before rendering the next frame).
+     * If the first 'fcTL' chunk uses a dispose_op of APNG_DISPOSE_OP_PREVIOUS it should be treated as APNG_DISPOSE_OP_BACKGROUND.
+     */
+    byte dispose_op;
+
+    /**
+     * Type of frame area rendering for this frame.
+     */
+    byte blend_op;
+
+    /**
+     * No disposal is done on this frame before rendering the next; the contents of the output buffer are left as is.
+     */
+    static final int APNG_DISPOSE_OP_NON = 0;
+
+    /**
+     * The frame's region of the output buffer is to be cleared to fully transparent black before rendering the next frame.
+     */
+    static final int APNG_DISPOSE_OP_BACKGROUND = 1;
+
+    /**
+     * The frame's region of the output buffer is to be reverted to the previous contents before rendering the next frame.
+     */
+    static final int APNG_DISPOSE_OP_PREVIOUS = 2;
+
+    /**
+     * blend_op<code> specifies whether the frame is to be alpha blended into the current output buffer content,
+     * or whether it should completely replace its region in the output buffer.
+     */
+    /**
+     * All color components of the frame, including alpha, overwrite the current contents of the frame's output buffer region.
+     */
+    static final int APNG_BLEND_OP_SOURCE = 0;
+
+    /**
+     * The frame should be composited onto the output buffer based on its alpha,
+     * using a simple OVER operation as described in the Alpha Channel Processing section of the Extensions
+     * to the PNG Specification, Version 1.2.0. Note that the second variation of the sample code is applicable.
+     */
+    static final int APNG_BLEND_OP_OVER = 1;
+
+    @Override
+    void innerParse(APNGReader reader) throws IOException {
+        sequence_number = reader.readInt();
+        width = reader.readInt();
+        height = reader.readInt();
+        x_offset = reader.readInt();
+        y_offset = reader.readInt();
+        delay_num = reader.readShort();
+        delay_den = reader.readShort();
+        dispose_op = reader.peek();
+        blend_op = reader.peek();
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/FDATChunk.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import org.signal.glide.apng.io.APNGReader;
+
+import java.io.IOException;
+
+/**
+ * @Description: https://developer.mozilla.org/en-US/docs/Mozilla/Tech/APNG#.27fdAT.27:_The_Frame_Data_Chunk
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class FDATChunk extends Chunk {
+    static final int ID = fourCCToInt("fdAT");
+    int sequence_number;
+
+    @Override
+    void innerParse(APNGReader reader) throws IOException {
+        sequence_number = reader.readInt();
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/IDATChunk.java

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+/**
+ * @Description: 作用描述
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class IDATChunk extends Chunk {
+    static final int ID = fourCCToInt("IDAT");
+}

app/src/main/java/org/signal/glide/apng/decode/IENDChunk.java

@@ -0,0 +1,15 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+/**
+ * @Description: 作用描述
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class IENDChunk extends Chunk {
+    static final int ID = Chunk.fourCCToInt("IEND");
+}

app/src/main/java/org/signal/glide/apng/decode/IHDRChunk.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import org.signal.glide.apng.io.APNGReader;
+
+import java.io.IOException;
+
+/**
+ * The IHDR chunk shall be the first chunk in the PNG datastream. It contains:
+ * <p>
+ * Width	4 bytes
+ * Height	4 bytes
+ * Bit depth	1 byte
+ * Colour type	1 byte
+ * Compression method	1 byte
+ * Filter method	1 byte
+ * Interlace method	1 byte
+ *
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+class IHDRChunk extends Chunk {
+    static final int ID = fourCCToInt("IHDR");
+    /**
+     * 图像宽度，以像素为单位
+     */
+    int width;
+    /**
+     * 图像高度，以像素为单位
+     */
+    int height;
+
+    byte[] data = new byte[5];
+
+    @Override
+    void innerParse(APNGReader reader) throws IOException {
+        width = reader.readInt();
+        height = reader.readInt();
+        reader.read(data, 0, data.length);
+    }
+}

app/src/main/java/org/signal/glide/apng/decode/StillFrame.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.decode;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+
+import org.signal.glide.apng.io.APNGReader;
+import org.signal.glide.apng.io.APNGWriter;
+import org.signal.glide.common.decode.Frame;
+
+import java.io.IOException;
+
+/**
+ * @Description: APNG4Android
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class StillFrame extends Frame<APNGReader, APNGWriter> {
+
+    public StillFrame(APNGReader reader) {
+        super(reader);
+    }
+
+    @Override
+    public Bitmap draw(Canvas canvas, Paint paint, int sampleSize, Bitmap reusedBitmap, APNGWriter writer) {
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inJustDecodeBounds = false;
+        options.inSampleSize = sampleSize;
+        options.inMutable = true;
+        options.inBitmap = reusedBitmap;
+        Bitmap bitmap = null;
+        try {
+            reader.reset();
+            bitmap = BitmapFactory.decodeStream(reader.toInputStream(), null, options);
+            assert bitmap != null;
+            paint.setXfermode(null);
+            canvas.drawBitmap(bitmap, 0, 0, paint);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return bitmap;
+    }
+}

app/src/main/java/org/signal/glide/apng/io/APNGReader.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.io;
+
+import android.text.TextUtils;
+
+import org.signal.glide.common.io.FilterReader;
+import org.signal.glide.common.io.Reader;
+
+import java.io.IOException;
+
+/**
+ * @Description: APNGReader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class APNGReader extends FilterReader {
+    private static ThreadLocal<byte[]> __intBytes = new ThreadLocal<>();
+
+
+    protected static byte[] ensureBytes() {
+        byte[] bytes = __intBytes.get();
+        if (bytes == null) {
+            bytes = new byte[4];
+            __intBytes.set(bytes);
+        }
+        return bytes;
+    }
+
+    public APNGReader(Reader in) {
+        super(in);
+    }
+
+    public int readInt() throws IOException {
+        byte[] buf = ensureBytes();
+        read(buf, 0, 4);
+        return buf[3] & 0xFF |
+                (buf[2] & 0xFF) << 8 |
+                (buf[1] & 0xFF) << 16 |
+                (buf[0] & 0xFF) << 24;
+    }
+
+    public short readShort() throws IOException {
+        byte[] buf = ensureBytes();
+        read(buf, 0, 2);
+        return (short) (buf[1] & 0xFF |
+                (buf[0] & 0xFF) << 8);
+    }
+
+    /**
+     * @return read FourCC and match chars
+     */
+    public boolean matchFourCC(String chars) throws IOException {
+        if (TextUtils.isEmpty(chars) || chars.length() != 4) {
+            return false;
+        }
+        int fourCC = readFourCC();
+        for (int i = 0; i < 4; i++) {
+            if (((fourCC >> (i * 8)) & 0xff) != chars.charAt(i)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public int readFourCC() throws IOException {
+        byte[] buf = ensureBytes();
+        read(buf, 0, 4);
+        return buf[0] & 0xff | (buf[1] & 0xff) << 8 | (buf[2] & 0xff) << 16 | (buf[3] & 0xff) << 24;
+    }
+}

app/src/main/java/org/signal/glide/apng/io/APNGWriter.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.apng.io;
+
+import org.signal.glide.common.io.ByteBufferWriter;
+
+import java.nio.ByteOrder;
+
+/**
+ * @Description: APNGWriter
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public class APNGWriter extends ByteBufferWriter {
+    public APNGWriter() {
+        super();
+    }
+
+    public void writeFourCC(int val) {
+        putByte((byte) (val & 0xff));
+        putByte((byte) ((val >> 8) & 0xff));
+        putByte((byte) ((val >> 16) & 0xff));
+        putByte((byte) ((val >> 24) & 0xff));
+    }
+
+    public void writeInt(int val) {
+        putByte((byte) ((val >> 24) & 0xff));
+        putByte((byte) ((val >> 16) & 0xff));
+        putByte((byte) ((val >> 8) & 0xff));
+        putByte((byte) (val & 0xff));
+    }
+
+    @Override
+    public void reset(int size) {
+        super.reset(size);
+        this.byteBuffer.order(ByteOrder.BIG_ENDIAN);
+    }
+}

app/src/main/java/org/signal/glide/common/FrameAnimationDrawable.java

@@ -0,0 +1,253 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.DrawFilter;
+import android.graphics.Matrix;
+import android.graphics.Paint;
+import android.graphics.PaintFlagsDrawFilter;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+
+import androidx.annotation.NonNull;
+import androidx.vectordrawable.graphics.drawable.Animatable2Compat;
+
+import org.signal.glide.Log;
+import org.signal.glide.common.decode.FrameSeqDecoder;
+import org.signal.glide.common.loader.Loader;
+
+import java.nio.ByteBuffer;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * @Description: Frame animation drawable
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+public abstract class FrameAnimationDrawable<Decoder extends FrameSeqDecoder> extends Drawable implements Animatable2Compat, FrameSeqDecoder.RenderListener {
+    private static final String TAG = FrameAnimationDrawable.class.getSimpleName();
+    private final Paint paint = new Paint();
+    private final Decoder frameSeqDecoder;
+    private DrawFilter drawFilter = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
+    private Matrix matrix = new Matrix();
+    private Set<AnimationCallback> animationCallbacks = new HashSet<>();
+    private Bitmap bitmap;
+    private static final int MSG_ANIMATION_START = 1;
+    private static final int MSG_ANIMATION_END = 2;
+    private Handler uiHandler = new Handler(Looper.getMainLooper()) {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case MSG_ANIMATION_START:
+                    for (AnimationCallback animationCallback : animationCallbacks) {
+                        animationCallback.onAnimationStart(FrameAnimationDrawable.this);
+                    }
+                    break;
+                case MSG_ANIMATION_END:
+                    for (AnimationCallback animationCallback : animationCallbacks) {
+                        animationCallback.onAnimationEnd(FrameAnimationDrawable.this);
+                    }
+                    break;
+            }
+        }
+    };
+    private Runnable invalidateRunnable = new Runnable() {
+        @Override
+        public void run() {
+            invalidateSelf();
+        }
+    };
+    private boolean autoPlay = true;
+
+    public FrameAnimationDrawable(Decoder frameSeqDecoder) {
+        paint.setAntiAlias(true);
+        this.frameSeqDecoder = frameSeqDecoder;
+    }
+
+    public FrameAnimationDrawable(Loader provider) {
+        paint.setAntiAlias(true);
+        this.frameSeqDecoder = createFrameSeqDecoder(provider, this);
+    }
+
+    public void setAutoPlay(boolean autoPlay) {
+        this.autoPlay = autoPlay;
+    }
+
+    protected abstract Decoder createFrameSeqDecoder(Loader streamLoader, FrameSeqDecoder.RenderListener listener);
+
+    /**
+     * @param loopLimit <=0为无限播放,>0为实际播放次数
+     */
+    public void setLoopLimit(int loopLimit) {
+        frameSeqDecoder.setLoopLimit(loopLimit);
+    }
+
+    public void reset() {
+        frameSeqDecoder.reset();
+    }
+
+    public void pause() {
+        frameSeqDecoder.pause();
+    }
+
+    public void resume() {
+        frameSeqDecoder.resume();
+    }
+
+    public boolean isPaused() {
+        return frameSeqDecoder.isPaused();
+    }
+
+    @Override
+    public void start() {
+        if (autoPlay) {
+            frameSeqDecoder.start();
+        } else {
+            this.frameSeqDecoder.addRenderListener(this);
+            if (!this.frameSeqDecoder.isRunning()) {
+                this.frameSeqDecoder.start();
+            }
+        }
+    }
+
+    @Override
+    public void stop() {
+        if (autoPlay) {
+            frameSeqDecoder.stop();
+        } else {
+            this.frameSeqDecoder.removeRenderListener(this);
+            this.frameSeqDecoder.stopIfNeeded();
+        }
+    }
+
+    @Override
+    public boolean isRunning() {
+        return frameSeqDecoder.isRunning();
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        if (bitmap == null || bitmap.isRecycled()) {
+            return;
+        }
+        canvas.setDrawFilter(drawFilter);
+        canvas.drawBitmap(bitmap, matrix, paint);
+    }
+
+    @Override
+    public void setBounds(int left, int top, int right, int bottom) {
+        super.setBounds(left, top, right, bottom);
+        boolean sampleSizeChanged = frameSeqDecoder.setDesiredSize(getBounds().width(), getBounds().height());
+        matrix.setScale(
+                1.0f * getBounds().width() * frameSeqDecoder.getSampleSize() / frameSeqDecoder.getBounds().width(),
+                1.0f * getBounds().height() * frameSeqDecoder.getSampleSize() / frameSeqDecoder.getBounds().height());
+
+        if (sampleSizeChanged)
+            this.bitmap = Bitmap.createBitmap(
+                    frameSeqDecoder.getBounds().width() / frameSeqDecoder.getSampleSize(),
+                    frameSeqDecoder.getBounds().height() / frameSeqDecoder.getSampleSize(),
+                    Bitmap.Config.ARGB_8888);
+    }
+
+    @Override
+    public void setAlpha(int alpha) {
+        paint.setAlpha(alpha);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter colorFilter) {
+        paint.setColorFilter(colorFilter);
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.TRANSLUCENT;
+    }
+
+    @Override
+    public void onStart() {
+        Message.obtain(uiHandler, MSG_ANIMATION_START).sendToTarget();
+    }
+
+    @Override
+    public void onRender(ByteBuffer byteBuffer) {
+        if (!isRunning()) {
+            return;
+        }
+        if (this.bitmap == null || this.bitmap.isRecycled()) {
+            this.bitmap = Bitmap.createBitmap(
+                    frameSeqDecoder.getBounds().width() / frameSeqDecoder.getSampleSize(),
+                    frameSeqDecoder.getBounds().height() / frameSeqDecoder.getSampleSize(),
+                    Bitmap.Config.ARGB_8888);
+        }
+        byteBuffer.rewind();
+        if (byteBuffer.remaining() < this.bitmap.getByteCount()) {
+            Log.e(TAG, "onRender:Buffer not large enough for pixels");
+            return;
+        }
+        this.bitmap.copyPixelsFromBuffer(byteBuffer);
+        uiHandler.post(invalidateRunnable);
+    }
+
+    @Override
+    public void onEnd() {
+        Message.obtain(uiHandler, MSG_ANIMATION_END).sendToTarget();
+    }
+
+    @Override
+    public boolean setVisible(boolean visible, boolean restart) {
+        if (this.autoPlay) {
+            if (visible) {
+                if (!isRunning()) {
+                    start();
+                }
+            } else if (isRunning()) {
+                stop();
+            }
+        }
+        return super.setVisible(visible, restart);
+    }
+
+    @Override
+    public int getIntrinsicWidth() {
+        try {
+            return frameSeqDecoder.getBounds().width();
+        } catch (Exception exception) {
+            return 0;
+        }
+    }
+
+    @Override
+    public int getIntrinsicHeight() {
+        try {
+            return frameSeqDecoder.getBounds().height();
+        } catch (Exception exception) {
+            return 0;
+        }
+    }
+
+    @Override
+    public void registerAnimationCallback(@NonNull AnimationCallback animationCallback) {
+        this.animationCallbacks.add(animationCallback);
+    }
+
+    @Override
+    public boolean unregisterAnimationCallback(@NonNull AnimationCallback animationCallback) {
+        return this.animationCallbacks.remove(animationCallback);
+    }
+
+    @Override
+    public void clearAnimationCallbacks() {
+        this.animationCallbacks.clear();
+    }
+}

app/src/main/java/org/signal/glide/common/decode/Frame.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.decode;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+
+import org.signal.glide.common.io.Reader;
+import org.signal.glide.common.io.Writer;
+
+/**
+ * @Description: One frame in an animation
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-13
+ */
+public abstract class Frame<R extends Reader, W extends Writer> {
+    protected final R reader;
+    public int frameWidth;
+    public int frameHeight;
+    public int frameX;
+    public int frameY;
+    public int frameDuration;
+
+    public Frame(R reader) {
+        this.reader = reader;
+    }
+
+    public abstract Bitmap draw(Canvas canvas, Paint paint, int sampleSize, Bitmap reusedBitmap, W writer);
+}

app/src/main/java/org/signal/glide/common/decode/FrameSeqDecoder.java

@@ -0,0 +1,539 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.decode;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Rect;
+import android.os.Build;
+import android.os.Handler;
+import android.os.Looper;
+
+import androidx.annotation.Nullable;
+import androidx.annotation.WorkerThread;
+
+import org.signal.glide.Log;
+import org.signal.glide.common.executor.FrameDecoderExecutor;
+import org.signal.glide.common.io.Reader;
+import org.signal.glide.common.io.Writer;
+import org.signal.glide.common.loader.Loader;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.WeakHashMap;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.locks.LockSupport;
+
+/**
+ * @Description: Abstract Frame Animation Decoder
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/27
+ */
+public abstract class FrameSeqDecoder<R extends Reader, W extends Writer> {
+    private static final String TAG = FrameSeqDecoder.class.getSimpleName();
+    private final int taskId;
+
+    private final Loader mLoader;
+    private final Handler workerHandler;
+    protected List<Frame> frames = new ArrayList<>();
+    protected int frameIndex = -1;
+    private int playCount;
+    private Integer loopLimit = null;
+    private Set<RenderListener> renderListeners = new HashSet<>();
+    private AtomicBoolean paused = new AtomicBoolean(true);
+    private static final Rect RECT_EMPTY = new Rect();
+    private Runnable renderTask = new Runnable() {
+        @Override
+        public void run() {
+            if (paused.get()) {
+                return;
+            }
+            if (canStep()) {
+                long start = System.currentTimeMillis();
+                long delay = step();
+                long cost = System.currentTimeMillis() - start;
+                workerHandler.postDelayed(this, Math.max(0, delay - cost));
+                for (RenderListener renderListener : renderListeners) {
+                    renderListener.onRender(frameBuffer);
+                }
+            } else {
+                stop();
+            }
+        }
+    };
+    protected int sampleSize = 1;
+
+    private Set<Bitmap> cacheBitmaps = new HashSet<>();
+    protected Map<Bitmap, Canvas> cachedCanvas = new WeakHashMap<>();
+    protected ByteBuffer frameBuffer;
+    protected volatile Rect fullRect;
+    private W mWriter = getWriter();
+    private R mReader = null;
+
+    /**
+     * If played all the needed
+     */
+    private boolean finished = false;
+
+    private enum State {
+        IDLE,
+        RUNNING,
+        INITIALIZING,
+        FINISHING,
+    }
+
+    private volatile State mState = State.IDLE;
+
+    public Loader getLoader() {
+        return mLoader;
+    }
+
+    protected abstract W getWriter();
+
+    protected abstract R getReader(Reader reader);
+
+    protected Bitmap obtainBitmap(int width, int height) {
+        Bitmap ret = null;
+        Iterator<Bitmap> iterator = cacheBitmaps.iterator();
+        while (iterator.hasNext()) {
+            int reuseSize = width * height * 4;
+            ret = iterator.next();
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+                if (ret != null && ret.getAllocationByteCount() >= reuseSize) {
+                    iterator.remove();
+                    if (ret.getWidth() != width || ret.getHeight() != height) {
+                        ret.reconfigure(width, height, Bitmap.Config.ARGB_8888);
+                    }
+                    ret.eraseColor(0);
+                    return ret;
+                }
+            } else {
+                if (ret != null && ret.getByteCount() >= reuseSize) {
+                    if (ret.getWidth() == width && ret.getHeight() == height) {
+                        iterator.remove();
+                        ret.eraseColor(0);
+                    }
+                    return ret;
+                }
+            }
+        }
+
+        try {
+            Bitmap.Config config = Bitmap.Config.ARGB_8888;
+            ret = Bitmap.createBitmap(width, height, config);
+        } catch (OutOfMemoryError e) {
+            e.printStackTrace();
+        }
+        return ret;
+    }
+
+    protected void recycleBitmap(Bitmap bitmap) {
+        if (bitmap != null && !cacheBitmaps.contains(bitmap)) {
+            cacheBitmaps.add(bitmap);
+        }
+    }
+
+    /**
+     * 解码器的渲染回调
+     */
+    public interface RenderListener {
+        /**
+         * 播放开始
+         */
+        void onStart();
+
+        /**
+         * 帧播放
+         */
+        void onRender(ByteBuffer byteBuffer);
+
+        /**
+         * 播放结束
+         */
+        void onEnd();
+    }
+
+
+    /**
+     * @param loader         webp的reader
+     * @param renderListener 渲染的回调
+     */
+    public FrameSeqDecoder(Loader loader, @Nullable RenderListener renderListener) {
+        this.mLoader = loader;
+        if (renderListener != null) {
+            this.renderListeners.add(renderListener);
+        }
+        this.taskId = FrameDecoderExecutor.getInstance().generateTaskId();
+        this.workerHandler = new Handler(FrameDecoderExecutor.getInstance().getLooper(taskId));
+    }
+
+
+    public void addRenderListener(final RenderListener renderListener) {
+        this.workerHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                renderListeners.add(renderListener);
+            }
+        });
+    }
+
+    public void removeRenderListener(final RenderListener renderListener) {
+        this.workerHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                renderListeners.remove(renderListener);
+            }
+        });
+    }
+
+    public void stopIfNeeded() {
+        this.workerHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                if (renderListeners.size() == 0) {
+                    stop();
+                }
+            }
+        });
+    }
+
+    public Rect getBounds() {
+        if (fullRect == null) {
+            if (mState == State.FINISHING) {
+                Log.e(TAG, "In finishing,do not interrupt");
+            }
+            final Thread thread = Thread.currentThread();
+            workerHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        if (fullRect == null) {
+                            if (mReader == null) {
+                                mReader = getReader(mLoader.obtain());
+                            } else {
+                                mReader.reset();
+                            }
+                            initCanvasBounds(read(mReader));
+                        }
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                        fullRect = RECT_EMPTY;
+                    } finally {
+                        LockSupport.unpark(thread);
+                    }
+                }
+            });
+            LockSupport.park(thread);
+        }
+        return fullRect;
+    }
+
+    private void initCanvasBounds(Rect rect) {
+        fullRect = rect;
+        frameBuffer = ByteBuffer.allocate((rect.width() * rect.height() / (sampleSize * sampleSize) + 1) * 4);
+        if (mWriter == null) {
+            mWriter = getWriter();
+        }
+    }
+
+
+    private int getFrameCount() {
+        return this.frames.size();
+    }
+
+    /**
+     * @return Loop Count defined in file
+     */
+    protected abstract int getLoopCount();
+
+    public void start() {
+        if (fullRect == RECT_EMPTY) {
+            return;
+        }
+        if (mState == State.RUNNING || mState == State.INITIALIZING) {
+            Log.i(TAG, debugInfo() + " Already started");
+            return;
+        }
+        if (mState == State.FINISHING) {
+            Log.e(TAG, debugInfo() + " Processing,wait for finish at " + mState);
+        }
+        mState = State.INITIALIZING;
+        if (Looper.myLooper() == workerHandler.getLooper()) {
+            innerStart();
+        } else {
+            workerHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    innerStart();
+                }
+            });
+        }
+    }
+
+    @WorkerThread
+    private void innerStart() {
+        paused.compareAndSet(true, false);
+
+        final long start = System.currentTimeMillis();
+        try {
+            if (frames.size() == 0) {
+                try {
+                    if (mReader == null) {
+                        mReader = getReader(mLoader.obtain());
+                    } else {
+                        mReader.reset();
+                    }
+                    initCanvasBounds(read(mReader));
+                } catch (Throwable e) {
+                    e.printStackTrace();
+                }
+            }
+        } finally {
+            Log.i(TAG, debugInfo() + " Set state to RUNNING,cost " + (System.currentTimeMillis() - start));
+            mState = State.RUNNING;
+        }
+        if (getNumPlays() == 0 || !finished) {
+            this.frameIndex = -1;
+            renderTask.run();
+            for (RenderListener renderListener : renderListeners) {
+                renderListener.onStart();
+            }
+        } else {
+            Log.i(TAG, debugInfo() + " No need to started");
+        }
+    }
+
+    @WorkerThread
+    private void innerStop() {
+        workerHandler.removeCallbacks(renderTask);
+        frames.clear();
+        for (Bitmap bitmap : cacheBitmaps) {
+            if (bitmap != null && !bitmap.isRecycled()) {
+                bitmap.recycle();
+            }
+        }
+        cacheBitmaps.clear();
+        if (frameBuffer != null) {
+            frameBuffer = null;
+        }
+        cachedCanvas.clear();
+        try {
+            if (mReader != null) {
+                mReader.close();
+                mReader = null;
+            }
+            if (mWriter != null) {
+                mWriter.close();
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        release();
+        mState = State.IDLE;
+        for (RenderListener renderListener : renderListeners) {
+            renderListener.onEnd();
+        }
+    }
+
+    public void stop() {
+        if (fullRect == RECT_EMPTY) {
+            return;
+        }
+        if (mState == State.FINISHING || mState == State.IDLE) {
+            Log.i(TAG, debugInfo() + "No need to stop");
+            return;
+        }
+        if (mState == State.INITIALIZING) {
+            Log.e(TAG, debugInfo() + "Processing,wait for finish at " + mState);
+        }
+        mState = State.FINISHING;
+        if (Looper.myLooper() == workerHandler.getLooper()) {
+            innerStop();
+        } else {
+            workerHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    innerStop();
+                }
+            });
+        }
+    }
+
+    private String debugInfo() {
+        return "";
+    }
+
+    protected abstract void release();
+
+    public boolean isRunning() {
+        return mState == State.RUNNING || mState == State.INITIALIZING;
+    }
+
+    public boolean isPaused() {
+        return paused.get();
+    }
+
+    public void setLoopLimit(int limit) {
+        this.loopLimit = limit;
+    }
+
+    public void reset() {
+        this.playCount = 0;
+        this.frameIndex = -1;
+        this.finished = false;
+    }
+
+    public void pause() {
+        workerHandler.removeCallbacks(renderTask);
+        paused.compareAndSet(false, true);
+    }
+
+    public void resume() {
+        paused.compareAndSet(true, false);
+        workerHandler.removeCallbacks(renderTask);
+        workerHandler.post(renderTask);
+    }
+
+
+    public int getSampleSize() {
+        return sampleSize;
+    }
+
+    public boolean setDesiredSize(int width, int height) {
+        boolean sampleSizeChanged = false;
+        int sample = getDesiredSample(width, height);
+        if (sample != this.sampleSize) {
+            this.sampleSize = sample;
+            sampleSizeChanged = true;
+            final boolean tempRunning = isRunning();
+            workerHandler.removeCallbacks(renderTask);
+            workerHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    innerStop();
+                    try {
+                        initCanvasBounds(read(getReader(mLoader.obtain())));
+                        if (tempRunning) {
+                            innerStart();
+                        }
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }
+            });
+        }
+        return sampleSizeChanged;
+    }
+
+    protected int getDesiredSample(int desiredWidth, int desiredHeight) {
+        if (desiredWidth == 0 || desiredHeight == 0) {
+            return 1;
+        }
+        int radio = Math.min(getBounds().width() / desiredWidth, getBounds().height() / desiredHeight);
+        int sample = 1;
+        while ((sample * 2) <= radio) {
+            sample *= 2;
+        }
+        return sample;
+    }
+
+    protected abstract Rect read(R reader) throws IOException;
+
+    private int getNumPlays() {
+        return this.loopLimit != null ? this.loopLimit : this.getLoopCount();
+    }
+
+    private boolean canStep() {
+        if (!isRunning()) {
+            return false;
+        }
+        if (frames.size() == 0) {
+            return false;
+        }
+        if (getNumPlays() <= 0) {
+            return true;
+        }
+        if (this.playCount < getNumPlays() - 1) {
+            return true;
+        } else if (this.playCount == getNumPlays() - 1 && this.frameIndex < this.getFrameCount() - 1) {
+            return true;
+        }
+        finished = true;
+        return false;
+    }
+
+    @WorkerThread
+    private long step() {
+        this.frameIndex++;
+        if (this.frameIndex >= this.getFrameCount()) {
+            this.frameIndex = 0;
+            this.playCount++;
+        }
+        Frame frame = getFrame(this.frameIndex);
+        if (frame == null) {
+            return 0;
+        }
+        renderFrame(frame);
+        return frame.frameDuration;
+    }
+
+    protected abstract void renderFrame(Frame frame);
+
+    private Frame getFrame(int index) {
+        if (index < 0 || index >= frames.size()) {
+            return null;
+        }
+        return frames.get(index);
+    }
+
+    /**
+     * Get Indexed frame
+     *
+     * @param index <0 means reverse from last index
+     */
+    public Bitmap getFrameBitmap(int index) throws IOException {
+        if (mState != State.IDLE) {
+            Log.e(TAG, debugInfo() + ",stop first");
+            return null;
+        }
+        mState = State.RUNNING;
+        paused.compareAndSet(true, false);
+        if (frames.size() == 0) {
+            if (mReader == null) {
+                mReader = getReader(mLoader.obtain());
+            } else {
+                mReader.reset();
+            }
+            initCanvasBounds(read(mReader));
+        }
+        if (index < 0) {
+            index += this.frames.size();
+        }
+        if (index < 0) {
+            index = 0;
+        }
+        frameIndex = -1;
+        while (frameIndex < index) {
+            if (canStep()) {
+                step();
+            } else {
+                break;
+            }
+        }
+        frameBuffer.rewind();
+        Bitmap bitmap = Bitmap.createBitmap(getBounds().width() / getSampleSize(), getBounds().height() / getSampleSize(), Bitmap.Config.ARGB_8888);
+        bitmap.copyPixelsFromBuffer(frameBuffer);
+        innerStop();
+        return bitmap;
+    }
+}

app/src/main/java/org/signal/glide/common/executor/FrameDecoderExecutor.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.executor;
+
+import android.os.HandlerThread;
+import android.os.Looper;
+
+import java.util.ArrayList;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/**
+ * @Description: com.github.penfeizhou.animation.executor
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-11-21
+ */
+public class FrameDecoderExecutor {
+    private static int sPoolNumber = 4;
+    private ArrayList<HandlerThread> mHandlerThreadGroup = new ArrayList<>();
+    private AtomicInteger counter = new AtomicInteger(0);
+
+    private FrameDecoderExecutor() {
+    }
+
+    static class Inner {
+        static final FrameDecoderExecutor sInstance = new FrameDecoderExecutor();
+    }
+
+    public void setPoolSize(int size) {
+        sPoolNumber = size;
+    }
+
+    public static FrameDecoderExecutor getInstance() {
+        return Inner.sInstance;
+    }
+
+    public Looper getLooper(int taskId) {
+        int idx = taskId % sPoolNumber;
+        if (idx >= mHandlerThreadGroup.size()) {
+            HandlerThread handlerThread = new HandlerThread("FrameDecoderExecutor-" + idx);
+            handlerThread.start();
+
+            mHandlerThreadGroup.add(handlerThread);
+            Looper looper = handlerThread.getLooper();
+            if (looper != null) {
+                return looper;
+            } else {
+                return Looper.getMainLooper();
+            }
+        } else {
+            if (mHandlerThreadGroup.get(idx) != null) {
+                Looper looper = mHandlerThreadGroup.get(idx).getLooper();
+                if (looper != null) {
+                    return looper;
+                } else {
+                    return Looper.getMainLooper();
+                }
+            } else {
+                return Looper.getMainLooper();
+            }
+        }
+    }
+
+    public int generateTaskId() {
+        return counter.getAndIncrement();
+    }
+}
+

app/src/main/java/org/signal/glide/common/io/ByteBufferReader.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+
+/**
+ * @Description: APNG4Android
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-14
+ */
+public class ByteBufferReader implements Reader {
+
+    private final ByteBuffer byteBuffer;
+
+    public ByteBufferReader(ByteBuffer byteBuffer) {
+        this.byteBuffer = byteBuffer;
+        byteBuffer.position(0);
+    }
+
+    @Override
+    public long skip(long total) throws IOException {
+        byteBuffer.position((int) (byteBuffer.position() + total));
+        return total;
+    }
+
+    @Override
+    public byte peek() throws IOException {
+        return byteBuffer.get();
+    }
+
+    @Override
+    public void reset() throws IOException {
+        byteBuffer.position(0);
+    }
+
+    @Override
+    public int position() {
+        return byteBuffer.position();
+    }
+
+    @Override
+    public int read(byte[] buffer, int start, int byteCount) throws IOException {
+        byteBuffer.get(buffer, start, byteCount);
+        return byteCount;
+    }
+
+    @Override
+    public int available() throws IOException {
+        return byteBuffer.limit() - byteBuffer.position();
+    }
+
+    @Override
+    public void close() throws IOException {
+    }
+
+    @Override
+    public InputStream toInputStream() throws IOException {
+        return new ByteArrayInputStream(byteBuffer.array());
+    }
+}

app/src/main/java/org/signal/glide/common/io/ByteBufferWriter.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * @Description: ByteBufferWriter
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-12
+ */
+public class ByteBufferWriter implements Writer {
+
+    protected ByteBuffer byteBuffer;
+
+    public ByteBufferWriter() {
+        reset(10 * 1024);
+    }
+
+    @Override
+    public void putByte(byte b) {
+        byteBuffer.put(b);
+    }
+
+    @Override
+    public void putBytes(byte[] b) {
+        byteBuffer.put(b);
+    }
+
+    @Override
+    public int position() {
+        return byteBuffer.position();
+    }
+
+    @Override
+    public void skip(int length) {
+        byteBuffer.position(length + position());
+    }
+
+    @Override
+    public byte[] toByteArray() {
+        return byteBuffer.array();
+    }
+
+    @Override
+    public void close() {
+    }
+
+    @Override
+    public void reset(int size) {
+        if (byteBuffer == null || size > byteBuffer.capacity()) {
+            byteBuffer = ByteBuffer.allocate(size);
+            this.byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
+        }
+        byteBuffer.clear();
+    }
+}

app/src/main/java/org/signal/glide/common/io/FileReader.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+/**
+ * @Description: FileReader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-23
+ */
+public class FileReader extends FilterReader {
+    private final File mFile;
+
+    public FileReader(File file) throws IOException {
+        super(new StreamReader(new FileInputStream(file)));
+        mFile = file;
+    }
+
+    @Override
+    public void reset() throws IOException {
+        reader.close();
+        reader = new StreamReader(new FileInputStream(mFile));
+    }
+}

app/src/main/java/org/signal/glide/common/io/FilterReader.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @Description: FilterReader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-23
+ */
+public class FilterReader implements Reader {
+    protected Reader reader;
+
+    public FilterReader(Reader in) {
+        this.reader = in;
+    }
+
+    @Override
+    public long skip(long total) throws IOException {
+        return reader.skip(total);
+    }
+
+    @Override
+    public byte peek() throws IOException {
+        return reader.peek();
+    }
+
+    @Override
+    public void reset() throws IOException {
+        reader.reset();
+    }
+
+    @Override
+    public int position() {
+        return reader.position();
+    }
+
+    @Override
+    public int read(byte[] buffer, int start, int byteCount) throws IOException {
+        return reader.read(buffer, start, byteCount);
+    }
+
+    @Override
+    public int available() throws IOException {
+        return reader.available();
+    }
+
+    @Override
+    public void close() throws IOException {
+        reader.close();
+    }
+
+    @Override
+    public InputStream toInputStream() throws IOException {
+        reset();
+        return reader.toInputStream();
+    }
+}

app/src/main/java/org/signal/glide/common/io/Reader.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @link {https://developers.google.com/speed/webp/docs/riff_container#terminology_basics}
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-11
+ */
+public interface Reader {
+    long skip(long total) throws IOException;
+
+    byte peek() throws IOException;
+
+    void reset() throws IOException;
+
+    int position();
+
+    int read(byte[] buffer, int start, int byteCount) throws IOException;
+
+    int available() throws IOException;
+
+    /**
+     * close io
+     */
+    void close() throws IOException;
+
+    InputStream toInputStream() throws IOException;
+}

app/src/main/java/org/signal/glide/common/io/StreamReader.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-11
+ */
+public class StreamReader extends FilterInputStream implements Reader {
+    private int position;
+
+    public StreamReader(InputStream in) {
+        super(in);
+        try {
+            in.reset();
+        } catch (IOException e) {
+            // e.printStackTrace();
+        }
+    }
+
+    @Override
+    public byte peek() throws IOException {
+        byte ret = (byte) read();
+        position++;
+        return ret;
+    }
+
+    @Override
+    public int read(byte[] b, int off, int len) throws IOException {
+        int ret = super.read(b, off, len);
+        position += Math.max(0, ret);
+        return ret;
+    }
+
+    @Override
+    public synchronized void reset() throws IOException {
+        super.reset();
+        position = 0;
+    }
+
+    @Override
+    public long skip(long n) throws IOException {
+        long ret = super.skip(n);
+        position += ret;
+        return ret;
+    }
+
+    @Override
+    public int position() {
+        return position;
+    }
+
+    @Override
+    public InputStream toInputStream() throws IOException {
+        return this;
+    }
+}

app/src/main/java/org/signal/glide/common/io/Writer.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.io;
+
+import java.io.IOException;
+
+/**
+ * @Description: APNG4Android
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-12
+ */
+public interface Writer {
+    void reset(int size);
+
+    void putByte(byte b);
+
+    void putBytes(byte[] b);
+
+    int position();
+
+    void skip(int length);
+
+    byte[] toByteArray();
+
+    void close() throws IOException;
+}

app/src/main/java/org/signal/glide/common/loader/AssetStreamLoader.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import android.content.Context;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @Description: 从Asset中读取流
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/28
+ */
+public class AssetStreamLoader extends StreamLoader {
+
+    private final Context mContext;
+    private final String mAssetName;
+
+    public AssetStreamLoader(Context context, String assetName) {
+        mContext = context.getApplicationContext();
+        mAssetName = assetName;
+    }
+
+    @Override
+    protected InputStream getInputStream() throws IOException {
+        return mContext.getAssets().open(mAssetName);
+    }
+}

app/src/main/java/org/signal/glide/common/loader/ByteBufferLoader.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import org.signal.glide.common.io.ByteBufferReader;
+import org.signal.glide.common.io.Reader;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+/**
+ * @Description: ByteBufferLoader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-15
+ */
+public abstract class ByteBufferLoader implements Loader {
+    public abstract ByteBuffer getByteBuffer();
+
+    @Override
+    public Reader obtain() throws IOException {
+        return new ByteBufferReader(getByteBuffer());
+    }
+}

app/src/main/java/org/signal/glide/common/loader/FileLoader.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import org.signal.glide.common.io.FileReader;
+import org.signal.glide.common.io.Reader;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * @Description: 从文件加载流
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/28
+ */
+public class FileLoader implements Loader {
+
+    private final File mFile;
+    private Reader mReader;
+
+    public FileLoader(String path) {
+        mFile = new File(path);
+    }
+
+    @Override
+    public synchronized Reader obtain() throws IOException {
+        return new FileReader(mFile);
+    }
+}

app/src/main/java/org/signal/glide/common/loader/Loader.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import org.signal.glide.common.io.Reader;
+
+import java.io.IOException;
+
+/**
+ * @Description: Loader
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-05-14
+ */
+public interface Loader {
+    Reader obtain() throws IOException;
+}

app/src/main/java/org/signal/glide/common/loader/ResourceStreamLoader.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import android.content.Context;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @Description: 从资源加载流
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/28
+ */
+public class ResourceStreamLoader extends StreamLoader {
+    private final Context mContext;
+    private final int mResId;
+
+
+    public ResourceStreamLoader(Context context, int resId) {
+        mContext = context.getApplicationContext();
+        mResId = resId;
+    }
+
+    @Override
+    protected InputStream getInputStream() throws IOException {
+        return mContext.getResources().openRawResource(mResId);
+    }
+}

app/src/main/java/org/signal/glide/common/loader/StreamLoader.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2019 Zhou Pengfei
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.signal.glide.common.loader;
+
+import org.signal.glide.common.io.Reader;
+import org.signal.glide.common.io.StreamReader;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019/3/28
+ */
+public abstract class StreamLoader implements Loader {
+    protected abstract InputStream getInputStream() throws IOException;
+
+
+    public final synchronized Reader obtain() throws IOException {
+        return new StreamReader(getInputStream());
+    }
+}

app/src/main/java/org/thoughtcrime/securesms/AppCapabilities.java

@@ -1,20 +1,21 @@
 package org.thoughtcrime.securesms;
 
-import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
+import org.thoughtcrime.securesms.util.FeatureFlags;
+import org.whispersystems.signalservice.api.account.AccountAttributes;
 
 public final class AppCapabilities {
 
   private AppCapabilities() {
   }
 
-  private static final boolean UUID_CAPABLE      = false;
-  private static final boolean GROUPS_V2_CAPABLE = false;
+  private static final boolean UUID_CAPABLE = false;
+  private static final boolean GV2_CAPABLE  = true;
 
   /**
    * @param storageCapable Whether or not the user can use storage service. This is another way of
    *                       asking if the user has set a Signal PIN or not.
    */
-  public static SignalServiceProfile.Capabilities getCapabilities(boolean storageCapable) {
-    return new SignalServiceProfile.Capabilities(UUID_CAPABLE, GROUPS_V2_CAPABLE, storageCapable);
+  public static AccountAttributes.Capabilities getCapabilities(boolean storageCapable) {
+    return new AccountAttributes.Capabilities(UUID_CAPABLE, GV2_CAPABLE, storageCapable, FeatureFlags.groupsV1AutoMigration());
   }
 }

app/src/main/java/org/thoughtcrime/securesms/ApplicationContext.java

@@ -22,6 +22,7 @@ import android.os.AsyncTask;
 import android.os.Build;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatDelegate;
 import androidx.lifecycle.DefaultLifecycleObserver;
 import androidx.lifecycle.LifecycleOwner;
@@ -32,9 +33,8 @@ import com.google.android.gms.security.ProviderInstaller;
 
 import org.conscrypt.Conscrypt;
 import org.signal.aesgcmprovider.AesGcmProvider;
+import org.signal.glide.SignalGlideCodecs;
 import org.signal.ringrtc.CallManager;
-import org.thoughtcrime.securesms.components.TypingStatusRepository;
-import org.thoughtcrime.securesms.components.TypingStatusSender;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
 import org.thoughtcrime.securesms.database.helpers.SQLCipherOpenHelper;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
@@ -42,17 +42,18 @@ import org.thoughtcrime.securesms.dependencies.ApplicationDependencyProvider;
 import org.thoughtcrime.securesms.gcm.FcmJobService;
 import org.thoughtcrime.securesms.jobs.CreateSignedPreKeyJob;
 import org.thoughtcrime.securesms.jobs.FcmRefreshJob;
+import org.thoughtcrime.securesms.jobs.GroupV1MigrationJob;
 import org.thoughtcrime.securesms.jobs.MultiDeviceContactUpdateJob;
 import org.thoughtcrime.securesms.jobs.PushNotificationReceiveJob;
-import org.thoughtcrime.securesms.jobs.RefreshAttributesJob;
 import org.thoughtcrime.securesms.jobs.RefreshPreKeysJob;
+import org.thoughtcrime.securesms.jobs.RetrieveProfileJob;
+import org.thoughtcrime.securesms.keyvalue.SignalStore;
 import org.thoughtcrime.securesms.logging.AndroidLogger;
 import org.thoughtcrime.securesms.logging.CustomSignalProtocolLogger;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.logging.PersistentLogger;
 import org.thoughtcrime.securesms.logging.SignalUncaughtExceptionHandler;
 import org.thoughtcrime.securesms.migrations.ApplicationMigrations;
-import org.thoughtcrime.securesms.notifications.MessageNotifier;
 import org.thoughtcrime.securesms.notifications.NotificationChannels;
 import org.thoughtcrime.securesms.providers.BlobProvider;
 import org.thoughtcrime.securesms.push.SignalServiceNetworkAccess;
@@ -61,16 +62,17 @@ import org.thoughtcrime.securesms.revealable.ViewOnceMessageManager;
 import org.thoughtcrime.securesms.ringrtc.RingRtcLogger;
 import org.thoughtcrime.securesms.service.DirectoryRefreshListener;
 import org.thoughtcrime.securesms.service.ExpiringMessageManager;
-import org.thoughtcrime.securesms.service.IncomingMessageObserver;
 import org.thoughtcrime.securesms.service.KeyCachingService;
 import org.thoughtcrime.securesms.service.LocalBackupListener;
 import org.thoughtcrime.securesms.service.RotateSenderCertificateListener;
 import org.thoughtcrime.securesms.service.RotateSignedPreKeyListener;
 import org.thoughtcrime.securesms.service.UpdateApkRefreshListener;
 import org.thoughtcrime.securesms.storage.StorageSyncHelper;
+import org.thoughtcrime.securesms.tracing.Trace;
+import org.thoughtcrime.securesms.util.DynamicTheme;
 import org.thoughtcrime.securesms.util.FeatureFlags;
-import org.thoughtcrime.securesms.util.PlayServicesUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
+import org.thoughtcrime.securesms.util.Util;
 import org.thoughtcrime.securesms.util.concurrent.SignalExecutors;
 import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageContextWrapper;
 import org.webrtc.voiceengine.WebRtcAudioManager;
@@ -90,16 +92,14 @@ import java.util.concurrent.TimeUnit;
  *
  * @author Moxie Marlinspike
  */
+@Trace
 public class ApplicationContext extends MultiDexApplication implements DefaultLifecycleObserver {
 
   private static final String TAG = ApplicationContext.class.getSimpleName();
 
-  private ExpiringMessageManager   expiringMessageManager;
-  private ViewOnceMessageManager   viewOnceMessageManager;
-  private TypingStatusRepository   typingStatusRepository;
-  private TypingStatusSender       typingStatusSender;
-  private IncomingMessageObserver  incomingMessageObserver;
-  private PersistentLogger         persistentLogger;
+  private ExpiringMessageManager expiringMessageManager;
+  private ViewOnceMessageManager viewOnceMessageManager;
+  private PersistentLogger       persistentLogger;
 
   private volatile boolean isAppVisible;
 
@@ -109,10 +109,11 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
 
   @Override
   public void onCreate() {
+    long startTime = System.currentTimeMillis();
     super.onCreate();
-    Log.i(TAG, "onCreate()");
     initializeSecurityProvider();
     initializeLogging();
+    Log.i(TAG, "onCreate()");
     initializeCrashHandling();
     initializeAppDependencies();
     initializeFirstEverAppLaunch();
@@ -120,8 +121,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     initializeMessageRetrieval();
     initializeExpiringMessageManager();
     initializeRevealableMessageManager();
-    initializeTypingStatusRepository();
-    initializeTypingStatusSender();
     initializeGcmCheck();
     initializeSignedPreKeyCheck();
     initializePeriodicTasks();
@@ -130,13 +129,13 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     initializePendingMessages();
     initializeBlobProvider();
     initializeCleanup();
-    initializePlayServicesCheck();
+    initializeGlideCodecs();
 
     FeatureFlags.init();
     NotificationChannels.create(this);
     RefreshPreKeysJob.scheduleIfNecessary();
     StorageSyncHelper.scheduleRoutineSync();
-    RegistrationUtil.markRegistrationPossiblyComplete();
+    RegistrationUtil.maybeMarkRegistrationComplete(this);
     ProcessLifecycleOwner.get().getLifecycle().addObserver(this);
 
     if (Build.VERSION.SDK_INT < 21) {
@@ -144,6 +143,10 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     }
 
     ApplicationDependencies.getJobManager().beginJobLoop();
+
+    DynamicTheme.setDefaultDayNightMode(this);
+
+    Log.d(TAG, "onCreate() took " + (System.currentTimeMillis() - startTime) + " ms");
   }
 
   @Override
@@ -152,10 +155,13 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     Log.i(TAG, "App is now visible.");
     FeatureFlags.refreshIfNecessary();
     ApplicationDependencies.getRecipientCache().warmUp();
+    RetrieveProfileJob.enqueueRoutineFetchIfNecessary(this);
+    GroupV1MigrationJob.enqueueRoutineMigrationsIfNecessary(this);
     executePendingContactSync();
     KeyCachingService.onAppForegrounded(this);
     ApplicationDependencies.getFrameRateTracker().begin();
     ApplicationDependencies.getMegaphoneRepository().onAppForegrounded();
+    checkBuildExpiration();
   }
 
   @Override
@@ -163,7 +169,7 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     isAppVisible = false;
     Log.i(TAG, "App is no longer visible.");
     KeyCachingService.onAppBackgrounded(this);
-    MessageNotifier.setVisibleThread(-1);
+    ApplicationDependencies.getMessageNotifier().clearVisibleThread();
     ApplicationDependencies.getFrameRateTracker().end();
   }
 
@@ -175,14 +181,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     return viewOnceMessageManager;
   }
 
-  public TypingStatusRepository getTypingStatusRepository() {
-    return typingStatusRepository;
-  }
-
-  public TypingStatusSender getTypingStatusSender() {
-    return typingStatusSender;
-  }
-
   public boolean isAppVisible() {
     return isAppVisible;
   }
@@ -191,6 +189,13 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     return persistentLogger;
   }
 
+  public void checkBuildExpiration() {
+    if (Util.getTimeUntilBuildExpiry() <= 0 && !SignalStore.misc().isClientDeprecated()) {
+      Log.w(TAG, "Build expired!");
+      SignalStore.misc().markClientDeprecated();
+    }
+  }
+
   private void initializeSecurityProvider() {
     try {
       Class.forName("org.signal.aesgcmprovider.AesGcmCipher");
@@ -232,7 +237,7 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
   }
 
   public void initializeMessageRetrieval() {
-    this.incomingMessageObserver = new IncomingMessageObserver(this);
+    ApplicationDependencies.getIncomingMessageObserver();
   }
 
   private void initializeAppDependencies() {
@@ -275,14 +280,6 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     this.viewOnceMessageManager = new ViewOnceMessageManager(this);
   }
 
-  private void initializeTypingStatusRepository() {
-    this.typingStatusRepository = new TypingStatusRepository();
-  }
-
-  private void initializeTypingStatusSender() {
-    this.typingStatusSender = new TypingStatusSender(this);
-  }
-
   private void initializePeriodicTasks() {
     RotateSignedPreKeyListener.schedule(this);
     DirectoryRefreshListener.schedule(this);
@@ -380,24 +377,39 @@ public class ApplicationContext extends MultiDexApplication implements DefaultLi
     });
   }
 
-  private void initializePlayServicesCheck() {
-    if (TextSecurePreferences.isFcmDisabled(this)) {
-      PlayServicesUtil.PlayServicesStatus status = PlayServicesUtil.getPlayServicesStatus(this);
-
-      if (status == PlayServicesUtil.PlayServicesStatus.SUCCESS) {
-        Log.i(TAG, "Play Services are newly-available. Updating to use FCM.");
-
-        TextSecurePreferences.setFcmDisabled(this, false);
-        ApplicationDependencies.getJobManager().startChain(new FcmRefreshJob())
-                                               .then(new RefreshAttributesJob())
-                                               .enqueue();
+  private void initializeGlideCodecs() {
+    SignalGlideCodecs.setLogProvider(new org.signal.glide.Log.Provider() {
+      @Override
+      public void v(@NonNull String tag, @NonNull String message) {
+        Log.v(tag, message);
       }
-    }
+
+      @Override
+      public void d(@NonNull String tag, @NonNull String message) {
+        Log.d(tag, message);
+      }
+
+      @Override
+      public void i(@NonNull String tag, @NonNull String message) {
+        Log.i(tag, message);
+      }
+
+      @Override
+      public void w(@NonNull String tag, @NonNull String message) {
+        Log.w(tag, message);
+      }
+
+      @Override
+      public void e(@NonNull String tag, @NonNull String message, @Nullable Throwable throwable) {
+        Log.e(tag, message, throwable);
+      }
+    });
   }
 
   @Override
   protected void attachBaseContext(Context base) {
-    super.attachBaseContext(DynamicLanguageContextWrapper.updateContext(base, TextSecurePreferences.getLanguage(base)));
+    DynamicLanguageContextWrapper.updateContext(base);
+    super.attachBaseContext(base);
   }
 
   private static class ProviderInitializationException extends RuntimeException {

app/src/main/java/org/thoughtcrime/securesms/ApplicationPreferencesActivity.java

@@ -17,32 +17,40 @@
  */
 package org.thoughtcrime.securesms;
 
+import android.app.AlertDialog;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.PorterDuff;
 import android.os.Build;
 import android.os.Bundle;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.content.ContextCompat;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentTransaction;
 import androidx.preference.Preference;
 
 import org.thoughtcrime.securesms.help.HelpFragment;
+import org.thoughtcrime.securesms.keyvalue.SignalStore;
 import org.thoughtcrime.securesms.preferences.AdvancedPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.AppProtectionPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.AppearancePreferenceFragment;
+import org.thoughtcrime.securesms.preferences.BackupsPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.ChatsPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.CorrectedPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.NotificationsPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.SmsMmsPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.StoragePreferenceFragment;
 import org.thoughtcrime.securesms.preferences.widgets.ProfilePreference;
+import org.thoughtcrime.securesms.preferences.widgets.UsernamePreference;
 import org.thoughtcrime.securesms.profiles.edit.EditProfileActivity;
+import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.service.KeyCachingService;
+import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.thoughtcrime.securesms.util.DynamicLanguage;
 import org.thoughtcrime.securesms.util.DynamicTheme;
+import org.thoughtcrime.securesms.util.FeatureFlags;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.ThemeUtil;
 
@@ -53,13 +61,16 @@ import org.thoughtcrime.securesms.util.ThemeUtil;
  *
  */
 
-public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarActivity
+public class ApplicationPreferencesActivity extends PassphraseRequiredActivity
     implements SharedPreferences.OnSharedPreferenceChangeListener
 {
+  public static final String LAUNCH_TO_BACKUPS_FRAGMENT = "launch.to.backups.fragment";
+
   @SuppressWarnings("unused")
   private static final String TAG = ApplicationPreferencesActivity.class.getSimpleName();
 
   private static final String PREFERENCE_CATEGORY_PROFILE        = "preference_category_profile";
+  private static final String PREFERENCE_CATEGORY_USERNAME       = "preference_category_username";
   private static final String PREFERENCE_CATEGORY_SMS_MMS        = "preference_category_sms_mms";
   private static final String PREFERENCE_CATEGORY_NOTIFICATIONS  = "preference_category_notifications";
   private static final String PREFERENCE_CATEGORY_APP_PROTECTION = "preference_category_app_protection";
@@ -69,10 +80,15 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
   private static final String PREFERENCE_CATEGORY_DEVICES        = "preference_category_devices";
   private static final String PREFERENCE_CATEGORY_HELP           = "preference_category_help";
   private static final String PREFERENCE_CATEGORY_ADVANCED       = "preference_category_advanced";
+  private static final String PREFERENCE_CATEGORY_DONATE         = "preference_category_donate";
+
+  private static final String WAS_CONFIGURATION_UPDATED          = "was_configuration_updated";
 
   private final DynamicTheme    dynamicTheme    = new DynamicTheme();
   private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
 
+  private boolean wasConfigurationUpdated = false;
+
   @Override
   protected void onPreCreate() {
     dynamicTheme.onCreate(this);
@@ -86,11 +102,21 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
 
     if (getIntent() != null && getIntent().getCategories() != null && getIntent().getCategories().contains("android.intent.category.NOTIFICATION_PREFERENCES")) {
       initFragment(android.R.id.content, new NotificationsPreferenceFragment());
+    } else if (getIntent() != null && getIntent().getBooleanExtra(LAUNCH_TO_BACKUPS_FRAGMENT, false)) {
+      initFragment(android.R.id.content, new BackupsPreferenceFragment());
     } else if (icicle == null) {
       initFragment(android.R.id.content, new ApplicationPreferenceFragment());
+    } else {
+      wasConfigurationUpdated = icicle.getBoolean(WAS_CONFIGURATION_UPDATED);
     }
   }
 
+  @Override
+  protected void onSaveInstanceState(@NonNull Bundle outState) {
+    outState.putBoolean(WAS_CONFIGURATION_UPDATED, wasConfigurationUpdated);
+    super.onSaveInstanceState(outState);
+  }
+
   @Override
   public void onResume() {
     super.onResume();
@@ -112,20 +138,28 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
     if (fragmentManager.getBackStackEntryCount() > 0) {
       fragmentManager.popBackStack();
     } else {
-      // TODO [greyson] Navigation
-      Intent intent = new Intent(this, MainActivity.class);
-      intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
-      startActivity(intent);
+      if (wasConfigurationUpdated) {
+        setResult(MainActivity.RESULT_CONFIG_CHANGED);
+      } else {
+        setResult(RESULT_OK);
+      }
       finish();
     }
     return true;
   }
 
+  @Override
+  public void onBackPressed() {
+    onSupportNavigateUp();
+  }
+
   @Override
   public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
     if (key.equals(TextSecurePreferences.THEME_PREF)) {
+      DynamicTheme.setDefaultDayNightMode(this);
       recreate();
     } else if (key.equals(TextSecurePreferences.LANGUAGE_PREF)) {
+      wasConfigurationUpdated = true;
       recreate();
 
       Intent intent = new Intent(this, KeyCachingService.class);
@@ -134,6 +168,14 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
     }
   }
 
+  public void pushFragment(@NonNull Fragment fragment) {
+    getSupportFragmentManager().beginTransaction()
+                               .setCustomAnimations(R.anim.slide_from_end, R.anim.slide_to_start, R.anim.slide_from_start, R.anim.slide_to_end)
+                               .replace(android.R.id.content, fragment)
+                               .addToBackStack(null)
+                               .commit();
+  }
+
   public static class ApplicationPreferenceFragment extends CorrectedPreferenceFragment {
 
     @Override
@@ -142,6 +184,8 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
 
       this.findPreference(PREFERENCE_CATEGORY_PROFILE)
           .setOnPreferenceClickListener(new ProfileClickListener());
+      this.findPreference(PREFERENCE_CATEGORY_USERNAME)
+          .setOnPreferenceClickListener(new UsernameClickListener());
       this.findPreference(PREFERENCE_CATEGORY_SMS_MMS)
         .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_SMS_MMS));
       this.findPreference(PREFERENCE_CATEGORY_NOTIFICATIONS)
@@ -159,7 +203,9 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       this.findPreference(PREFERENCE_CATEGORY_HELP)
           .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_HELP));
       this.findPreference(PREFERENCE_CATEGORY_ADVANCED)
-        .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_ADVANCED));
+          .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_ADVANCED));
+      this.findPreference(PREFERENCE_CATEGORY_DONATE)
+          .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_DONATE));
 
       tintIcons();
     }
@@ -168,12 +214,30 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       if (Build.VERSION.SDK_INT >= 21) return;
 
       Preference preference = this.findPreference(PREFERENCE_CATEGORY_SMS_MMS);
-      preference.getIcon().setColorFilter(ThemeUtil.getThemedColor(requireContext(), R.attr.icon_tint), PorterDuff.Mode.SRC_IN);
+      preference.getIcon().setColorFilter(ContextCompat.getColor(requireContext(), R.color.signal_icon_tint_primary), PorterDuff.Mode.SRC_IN);
     }
 
     @Override
     public void onCreatePreferences(@Nullable Bundle savedInstanceState, String rootKey) {
       addPreferencesFromResource(R.xml.preferences);
+
+      if (FeatureFlags.usernames()) {
+        UsernamePreference pref = (UsernamePreference) findPreference(PREFERENCE_CATEGORY_USERNAME);
+        pref.setVisible(shouldDisplayUsernameReminder());
+        pref.setOnLongClickListener(v -> {
+          new AlertDialog.Builder(requireContext())
+                         .setMessage(R.string.ApplicationPreferencesActivity_hide_reminder)
+                         .setPositiveButton(R.string.ApplicationPreferencesActivity_hide, (dialog, which) -> {
+                           dialog.dismiss();
+                           SignalStore.misc().hideUsernameReminder();
+                             findPreference(PREFERENCE_CATEGORY_USERNAME).setVisible(false);
+                         })
+                         .setNegativeButton(android.R.string.cancel, ((dialog, which) -> dialog.dismiss()))
+                         .setCancelable(true)
+                         .show();
+          return true;
+        });
+      }
     }
 
     @Override
@@ -188,6 +252,11 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
     private void setCategorySummaries() {
       ((ProfilePreference)this.findPreference(PREFERENCE_CATEGORY_PROFILE)).refresh();
 
+      if (FeatureFlags.usernames()) {
+        this.findPreference(PREFERENCE_CATEGORY_USERNAME)
+            .setVisible(shouldDisplayUsernameReminder());
+      }
+
       this.findPreference(PREFERENCE_CATEGORY_SMS_MMS)
           .setSummary(SmsMmsPreferenceFragment.getSummary(getActivity()));
       this.findPreference(PREFERENCE_CATEGORY_NOTIFICATIONS)
@@ -207,6 +276,10 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       }
     }
 
+    private static boolean shouldDisplayUsernameReminder() {
+      return FeatureFlags.usernames() && !Recipient.self().getUsername().isPresent() && SignalStore.misc().shouldShowUsernameReminder();
+    }
+
     private class CategoryClickListener implements Preference.OnPreferenceClickListener {
       private String category;
 
@@ -247,6 +320,9 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
         case PREFERENCE_CATEGORY_HELP:
           fragment = new HelpFragment();
           break;
+        case PREFERENCE_CATEGORY_DONATE:
+          CommunicationActions.openBrowserLink(requireContext(), getString(R.string.donate_url));
+          break;
         default:
           throw new AssertionError();
         }
@@ -255,14 +331,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
           Bundle args = new Bundle();
           fragment.setArguments(args);
 
-          FragmentManager     fragmentManager     = getActivity().getSupportFragmentManager();
-          FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
-
-          fragmentTransaction.setCustomAnimations(R.anim.slide_from_end, R.anim.slide_to_start, R.anim.slide_from_start, R.anim.slide_to_end);
-
-          fragmentTransaction.replace(android.R.id.content, fragment);
-          fragmentTransaction.addToBackStack(null);
-          fragmentTransaction.commit();
+          ((ApplicationPreferencesActivity) requireActivity()).pushFragment(fragment);
         }
 
         return true;
@@ -272,12 +341,15 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
     private class ProfileClickListener implements Preference.OnPreferenceClickListener {
       @Override
       public boolean onPreferenceClick(Preference preference) {
-        Intent intent = new Intent(preference.getContext(), EditProfileActivity.class);
-        intent.putExtra(EditProfileActivity.EXCLUDE_SYSTEM, true);
-        intent.putExtra(EditProfileActivity.DISPLAY_USERNAME, true);
-        intent.putExtra(EditProfileActivity.NEXT_BUTTON_TEXT, R.string.save);
+        requireActivity().startActivity(EditProfileActivity.getIntentForUserProfileEdit(preference.getContext()));
+        return true;
+      }
+    }
 
-        requireActivity().startActivity(intent);
+    private class UsernameClickListener implements Preference.OnPreferenceClickListener {
+      @Override
+      public boolean onPreferenceClick(Preference preference) {
+        requireActivity().startActivity(EditProfileActivity.getIntentForUsernameEdit(preference.getContext()));
         return true;
       }
     }

app/src/main/java/org/thoughtcrime/securesms/AvatarPreviewActivity.java

@@ -0,0 +1,142 @@
+package org.thoughtcrime.securesms;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.os.Bundle;
+import android.transition.TransitionInflater;
+import android.view.View;
+import android.widget.ImageView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.ActivityOptionsCompat;
+import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory;
+
+import com.bumptech.glide.load.DataSource;
+import com.bumptech.glide.load.engine.DiskCacheStrategy;
+import com.bumptech.glide.load.engine.GlideException;
+import com.bumptech.glide.request.RequestListener;
+import com.bumptech.glide.request.target.CustomTarget;
+import com.bumptech.glide.request.target.Target;
+import com.bumptech.glide.request.transition.Transition;
+
+import org.thoughtcrime.securesms.contacts.avatars.ContactPhoto;
+import org.thoughtcrime.securesms.contacts.avatars.FallbackContactPhoto;
+import org.thoughtcrime.securesms.contacts.avatars.ProfileContactPhoto;
+import org.thoughtcrime.securesms.contacts.avatars.ResourceContactPhoto;
+import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.mms.GlideApp;
+import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.recipients.RecipientId;
+import org.thoughtcrime.securesms.util.FullscreenHelper;
+
+/**
+ * Activity for displaying avatars full screen.
+ */
+public final class AvatarPreviewActivity extends PassphraseRequiredActivity {
+
+  private static final String TAG = Log.tag(AvatarPreviewActivity.class);
+
+  private static final String RECIPIENT_ID_EXTRA = "recipient_id";
+
+  public static @NonNull Intent intentFromRecipientId(@NonNull Context context,
+                                                      @NonNull RecipientId recipientId)
+  {
+    Intent intent = new Intent(context, AvatarPreviewActivity.class);
+    intent.putExtra(RECIPIENT_ID_EXTRA, recipientId.serialize());
+    return intent;
+  }
+
+  public static Bundle createTransitionBundle(@NonNull Activity activity, @NonNull View from) {
+    return ActivityOptionsCompat.makeSceneTransitionAnimation(activity, from, "avatar").toBundle();
+  }
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState, boolean ready) {
+    super.onCreate(savedInstanceState, ready);
+
+    setTheme(R.style.TextSecure_MediaPreview);
+    setContentView(R.layout.contact_photo_preview_activity);
+
+    if (Build.VERSION.SDK_INT >= 21) {
+      postponeEnterTransition();
+      TransitionInflater inflater = TransitionInflater.from(this);
+      getWindow().setSharedElementEnterTransition(inflater.inflateTransition(R.transition.full_screen_avatar_image_enter_transition_set));
+      getWindow().setSharedElementReturnTransition(inflater.inflateTransition(R.transition.full_screen_avatar_image_return_transition_set));
+    }
+
+    Toolbar   toolbar = findViewById(R.id.toolbar);
+    ImageView avatar  = findViewById(R.id.avatar);
+
+    setSupportActionBar(toolbar);
+
+    requireSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+    Context     context     = getApplicationContext();
+    RecipientId recipientId = RecipientId.from(getIntent().getStringExtra(RECIPIENT_ID_EXTRA));
+
+    Recipient.live(recipientId).observe(this, recipient -> {
+      ContactPhoto contactPhoto  = recipient.isSelf() ? new ProfileContactPhoto(recipient, recipient.getProfileAvatar())
+                                                      : recipient.getContactPhoto();
+      FallbackContactPhoto fallbackPhoto = recipient.isSelf() ? new ResourceContactPhoto(R.drawable.ic_profile_outline_40, R.drawable.ic_profile_outline_20, R.drawable.ic_person_large)
+                                                              : recipient.getFallbackContactPhoto();
+
+      Resources resources = this.getResources();
+
+      GlideApp.with(this)
+              .asBitmap()
+              .load(contactPhoto)
+              .fallback(fallbackPhoto.asCallCard(this))
+              .error(fallbackPhoto.asCallCard(this))
+              .diskCacheStrategy(DiskCacheStrategy.ALL)
+              .addListener(new RequestListener<Bitmap>() {
+                @Override
+                public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Bitmap> target, boolean isFirstResource) {
+                  Log.w(TAG, "Unable to load avatar, or avatar removed, closing");
+                  finish();
+                  return false;
+                }
+
+                @Override
+                public boolean onResourceReady(Bitmap resource, Object model, Target<Bitmap> target, DataSource dataSource, boolean isFirstResource) {
+                  return false;
+                }
+              })
+              .into(new CustomTarget<Bitmap>() {
+                @Override
+                public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
+                  avatar.setImageDrawable(RoundedBitmapDrawableFactory.create(resources, resource));
+                  if (Build.VERSION.SDK_INT >= 21) {
+                    startPostponedEnterTransition();
+                  }
+                }
+
+                @Override
+                public void onLoadCleared(@Nullable Drawable placeholder) {
+                }
+              });
+
+      toolbar.setTitle(recipient.getDisplayName(context));
+    });
+
+    FullscreenHelper fullscreenHelper = new FullscreenHelper(this);
+
+    findViewById(android.R.id.content).setOnClickListener(v -> fullscreenHelper.toggleUiVisibility());
+
+    fullscreenHelper.configureToolbarSpacer(findViewById(R.id.toolbar_cutout_spacer));
+
+    fullscreenHelper.showAndHideWithSystemUI(getWindow(), findViewById(R.id.toolbar_layout));
+  }
+
+  @Override
+  public boolean onSupportNavigateUp() {
+    onBackPressed();
+    return true;
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/BaseActionBarActivity.java

@@ -1,101 +0,0 @@
-package org.thoughtcrime.securesms;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Build;
-import android.os.Build.VERSION_CODES;
-import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.core.app.ActivityCompat;
-import androidx.core.app.ActivityOptionsCompat;
-import androidx.appcompat.app.AppCompatActivity;
-import android.view.KeyEvent;
-import android.view.View;
-import android.view.ViewConfiguration;
-import android.view.WindowManager;
-
-import org.thoughtcrime.securesms.logging.Log;
-import org.thoughtcrime.securesms.util.TextSecurePreferences;
-import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageActivityHelper;
-import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageContextWrapper;
-
-import java.lang.reflect.Field;
-
-
-public abstract class BaseActionBarActivity extends AppCompatActivity {
-  private static final String TAG = BaseActionBarActivity.class.getSimpleName();
-
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    if (BaseActivity.isMenuWorkaroundRequired()) {
-      forceOverflowMenu();
-    }
-    super.onCreate(savedInstanceState);
-  }
-
-  @Override
-  protected void onResume() {
-    super.onResume();
-    initializeScreenshotSecurity();
-    DynamicLanguageActivityHelper.recreateIfNotInCorrectLanguage(this, TextSecurePreferences.getLanguage(this));
-  }
-
-  @Override
-  public boolean onKeyDown(int keyCode, KeyEvent event) {
-    return (keyCode == KeyEvent.KEYCODE_MENU && BaseActivity.isMenuWorkaroundRequired()) || super.onKeyDown(keyCode, event);
-  }
-
-  @Override
-  public boolean onKeyUp(int keyCode, @NonNull KeyEvent event) {
-    if (keyCode == KeyEvent.KEYCODE_MENU && BaseActivity.isMenuWorkaroundRequired()) {
-      openOptionsMenu();
-      return true;
-    }
-    return super.onKeyUp(keyCode, event);
-  }
-
-  private void initializeScreenshotSecurity() {
-    if (TextSecurePreferences.isScreenSecurityEnabled(this)) {
-      getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
-    } else {
-      getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);
-    }
-  }
-
-  /**
-   * Modified from: http://stackoverflow.com/a/13098824
-   */
-  private void forceOverflowMenu() {
-    try {
-      ViewConfiguration config       = ViewConfiguration.get(this);
-      Field             menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
-      if(menuKeyField != null) {
-        menuKeyField.setAccessible(true);
-        menuKeyField.setBoolean(config, false);
-      }
-    } catch (IllegalAccessException e) {
-      Log.w(TAG, "Failed to force overflow menu.");
-    } catch (NoSuchFieldException e) {
-      Log.w(TAG, "Failed to force overflow menu.");
-    }
-  }
-
-  protected void startActivitySceneTransition(Intent intent, View sharedView, String transitionName) {
-    Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(this, sharedView, transitionName)
-                                         .toBundle();
-    ActivityCompat.startActivity(this, intent, bundle);
-  }
-
-  @TargetApi(VERSION_CODES.LOLLIPOP)
-  protected void setStatusBarColor(int color) {
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-      getWindow().setStatusBarColor(color);
-    }
-  }
-
-  @Override
-  protected void attachBaseContext(Context newBase) {
-    super.attachBaseContext(DynamicLanguageContextWrapper.updateContext(newBase, TextSecurePreferences.getLanguage(newBase)));
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/BaseActivity.java

@@ -1,46 +1,115 @@
 package org.thoughtcrime.securesms;
 
+import android.annotation.TargetApi;
 import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
 import android.os.Build;
-import android.os.Build.VERSION;
-import android.os.Build.VERSION_CODES;
-import androidx.annotation.NonNull;
-import androidx.fragment.app.FragmentActivity;
-import android.view.KeyEvent;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.app.ActivityCompat;
+import androidx.core.app.ActivityOptionsCompat;
+
+import org.thoughtcrime.securesms.logging.Log;
+import org.thoughtcrime.securesms.util.ConfigurationUtil;
+import org.thoughtcrime.securesms.util.ContextUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
-import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageActivityHelper;
+import org.thoughtcrime.securesms.util.WindowUtil;
 import org.thoughtcrime.securesms.util.dynamiclanguage.DynamicLanguageContextWrapper;
 
-public abstract class BaseActivity extends FragmentActivity {
-  @Override
-  public boolean onKeyDown(int keyCode, KeyEvent event) {
-    return (keyCode == KeyEvent.KEYCODE_MENU && isMenuWorkaroundRequired()) || super.onKeyDown(keyCode, event);
-  }
+import java.util.Objects;
+
+/**
+ * Base class for all activities. The vast majority of activities shouldn't extend this directly.
+ * Instead, they should extend {@link PassphraseRequiredActivity} so they're protected by
+ * screen lock.
+ */
+public abstract class BaseActivity extends AppCompatActivity {
+  private static final String TAG = Log.tag(BaseActivity.class);
 
   @Override
-  public boolean onKeyUp(int keyCode, @NonNull KeyEvent event) {
-    if (keyCode == KeyEvent.KEYCODE_MENU && isMenuWorkaroundRequired()) {
-      openOptionsMenu();
-      return true;
-    }
-    return super.onKeyUp(keyCode, event);
-  }
-
-  public static boolean isMenuWorkaroundRequired() {
-    return VERSION.SDK_INT < VERSION_CODES.KITKAT          &&
-           VERSION.SDK_INT > VERSION_CODES.GINGERBREAD_MR1 &&
-           ("LGE".equalsIgnoreCase(Build.MANUFACTURER) || "E6710".equalsIgnoreCase(Build.DEVICE));
+  protected void onCreate(Bundle savedInstanceState) {
+    logEvent("onCreate()");
+    super.onCreate(savedInstanceState);
   }
 
   @Override
   protected void onResume() {
     super.onResume();
-    DynamicLanguageActivityHelper.recreateIfNotInCorrectLanguage(this, TextSecurePreferences.getLanguage(this));
+    initializeScreenshotSecurity();
   }
 
   @Override
-  protected void attachBaseContext(Context newBase) {
-    super.attachBaseContext(DynamicLanguageContextWrapper.updateContext(newBase, TextSecurePreferences.getLanguage(newBase)));
+  protected void onStart() {
+    logEvent("onStart()");
+    super.onStart();
+  }
+
+  @Override
+  protected void onStop() {
+    logEvent("onStop()");
+    super.onStop();
+  }
+
+  @Override
+  protected void onDestroy() {
+    logEvent("onDestroy()");
+    super.onDestroy();
+  }
+
+  private void initializeScreenshotSecurity() {
+    if (TextSecurePreferences.isScreenSecurityEnabled(this)) {
+      getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
+    } else {
+      getWindow().clearFlags(WindowManager.LayoutParams.FLAG_SECURE);
+    }
+  }
+
+  protected void startActivitySceneTransition(Intent intent, View sharedView, String transitionName) {
+    Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(this, sharedView, transitionName)
+                                         .toBundle();
+    ActivityCompat.startActivity(this, intent, bundle);
+  }
+
+  @Override
+  protected void attachBaseContext(@NonNull Context newBase) {
+    super.attachBaseContext(newBase);
+
+    Configuration configuration      = new Configuration(newBase.getResources().getConfiguration());
+    int           appCompatNightMode = getDelegate().getLocalNightMode() != AppCompatDelegate.MODE_NIGHT_UNSPECIFIED ? getDelegate().getLocalNightMode()
+                                                                                                                     : AppCompatDelegate.getDefaultNightMode();
+
+    configuration.uiMode = (configuration.uiMode & ~Configuration.UI_MODE_NIGHT_MASK) | mapNightModeToConfigurationUiMode(newBase, appCompatNightMode);
+
+    applyOverrideConfiguration(configuration);
+  }
+
+  @Override
+  public void applyOverrideConfiguration(@NonNull Configuration overrideConfiguration) {
+    DynamicLanguageContextWrapper.prepareOverrideConfiguration(this, overrideConfiguration);
+    super.applyOverrideConfiguration(overrideConfiguration);
+  }
+
+  private void logEvent(@NonNull String event) {
+    Log.d(TAG, "[" + Log.tag(getClass()) + "] " + event);
+  }
+
+  public final @NonNull ActionBar requireSupportActionBar() {
+    return Objects.requireNonNull(getSupportActionBar());
+  }
+
+  private static int mapNightModeToConfigurationUiMode(@NonNull Context context, @AppCompatDelegate.NightMode int appCompatNightMode) {
+    if (appCompatNightMode == AppCompatDelegate.MODE_NIGHT_YES) {
+      return Configuration.UI_MODE_NIGHT_YES;
+    } else if (appCompatNightMode == AppCompatDelegate.MODE_NIGHT_NO) {
+      return Configuration.UI_MODE_NIGHT_NO;
+    }
+    return ConfigurationUtil.getNightModeConfiguration(context.getApplicationContext());
   }
 }

app/src/main/java/org/thoughtcrime/securesms/BindableConversationItem.java

@@ -1,13 +1,19 @@
 package org.thoughtcrime.securesms;
 
+import android.net.Uri;
+import android.view.View;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import android.view.View;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.lifecycle.Observer;
 
+import org.thoughtcrime.securesms.components.voice.VoiceNotePlaybackState;
 import org.thoughtcrime.securesms.contactshare.Contact;
+import org.thoughtcrime.securesms.conversation.ConversationMessage;
 import org.thoughtcrime.securesms.database.model.MessageRecord;
 import org.thoughtcrime.securesms.database.model.MmsMessageRecord;
-import org.thoughtcrime.securesms.database.model.ReactionRecord;
+import org.thoughtcrime.securesms.groups.GroupId;
 import org.thoughtcrime.securesms.linkpreview.LinkPreview;
 import org.thoughtcrime.securesms.mms.GlideRequests;
 import org.thoughtcrime.securesms.recipients.Recipient;
@@ -20,17 +26,18 @@ import java.util.Locale;
 import java.util.Set;
 
 public interface BindableConversationItem extends Unbindable {
-  void bind(@NonNull MessageRecord           messageRecord,
+  void bind(@NonNull LifecycleOwner lifecycleOwner,
+            @NonNull ConversationMessage messageRecord,
             @NonNull Optional<MessageRecord> previousMessageRecord,
             @NonNull Optional<MessageRecord> nextMessageRecord,
-            @NonNull GlideRequests           glideRequests,
-            @NonNull Locale                  locale,
-            @NonNull Set<MessageRecord>      batchSelected,
-            @NonNull Recipient               recipients,
-            @Nullable String                 searchQuery,
-                     boolean                 pulseHighlight);
+            @NonNull GlideRequests glideRequests,
+            @NonNull Locale locale,
+            @NonNull Set<ConversationMessage> batchSelected,
+            @NonNull Recipient recipients,
+            @Nullable String searchQuery,
+            boolean pulseMention);
 
-  MessageRecord getMessageRecord();
+  ConversationMessage getConversationMessage();
 
   void setEventListener(@Nullable EventListener listener);
 
@@ -44,6 +51,17 @@ public interface BindableConversationItem extends Unbindable {
     void onAddToContactsClicked(@NonNull Contact contact);
     void onMessageSharedContactClicked(@NonNull List<Recipient> choices);
     void onInviteSharedContactClicked(@NonNull List<Recipient> choices);
-    void onReactionClicked(long messageId, boolean isMms);
+    void onReactionClicked(@NonNull View reactionTarget, long messageId, boolean isMms);
+    void onGroupMemberClicked(@NonNull RecipientId recipientId, @NonNull GroupId groupId);
+    void onMessageWithErrorClicked(@NonNull MessageRecord messageRecord);
+    void onRegisterVoiceNoteCallbacks(@NonNull Observer<VoiceNotePlaybackState> onPlaybackStartObserver);
+    void onUnregisterVoiceNoteCallbacks(@NonNull Observer<VoiceNotePlaybackState> onPlaybackStartObserver);
+    void onVoiceNotePause(@NonNull Uri uri);
+    void onVoiceNotePlay(@NonNull Uri uri, long messageId, double position);
+    void onVoiceNoteSeekTo(@NonNull Uri uri, double position);
+    void onGroupMigrationLearnMoreClicked(@NonNull List<RecipientId> pendingRecipients);
+
+    /** @return true if handled, false if you want to let the normal url handling continue */
+    boolean onUrlClicked(@NonNull String url);
   }
 }

app/src/main/java/org/thoughtcrime/securesms/BindableConversationListItem.java

@@ -10,8 +10,11 @@ import java.util.Set;
 
 public interface BindableConversationListItem extends Unbindable {
 
-  public void bind(@NonNull ThreadRecord thread,
-                   @NonNull GlideRequests glideRequests, @NonNull Locale locale,
-                   @NonNull Set<Long> typingThreads,
-                   @NonNull Set<Long> selectedThreads, boolean batchMode);
+  void bind(@NonNull ThreadRecord thread,
+            @NonNull GlideRequests glideRequests, @NonNull Locale locale,
+            @NonNull Set<Long> typingThreads,
+            @NonNull Set<Long> selectedThreads, boolean batchMode);
+
+  void setBatchMode(boolean batchMode);
+  void updateTypingIndicator(@NonNull Set<Long> typingThreads);
 }

app/src/main/java/org/thoughtcrime/securesms/BlockedContactsActivity.java

@@ -1,140 +0,0 @@
-package org.thoughtcrime.securesms;
-
-import android.content.Context;
-import android.database.Cursor;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.AdapterView;
-import android.widget.ListView;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.cursoradapter.widget.CursorAdapter;
-import androidx.fragment.app.ListFragment;
-import androidx.loader.app.LoaderManager;
-import androidx.loader.content.Loader;
-
-import org.thoughtcrime.securesms.database.RecipientDatabase;
-import org.thoughtcrime.securesms.database.loaders.BlockedContactsLoader;
-import org.thoughtcrime.securesms.mms.GlideApp;
-import org.thoughtcrime.securesms.mms.GlideRequests;
-import org.thoughtcrime.securesms.preferences.BlockedContactListItem;
-import org.thoughtcrime.securesms.recipients.LiveRecipient;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.RecipientId;
-import org.thoughtcrime.securesms.recipients.RecipientUtil;
-import org.thoughtcrime.securesms.util.DynamicTheme;
-
-public class BlockedContactsActivity extends PassphraseRequiredActionBarActivity {
-
-  private final DynamicTheme dynamicTheme = new DynamicTheme();
-
-  @Override
-  public void onPreCreate() {
-    dynamicTheme.onCreate(this);
-  }
-
-  @Override
-  public void onCreate(Bundle bundle, boolean ready) {
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-    getSupportActionBar().setTitle(R.string.BlockedContactsActivity_blocked_contacts);
-    initFragment(android.R.id.content, new BlockedContactsFragment());
-  }
-
-  @Override
-  public void onResume() {
-    super.onResume();
-    dynamicTheme.onResume(this);
-  }
-
-  @Override
-  public boolean onSupportNavigateUp() {
-    onBackPressed();
-    return true;
-  }
-
-  public static class BlockedContactsFragment
-      extends ListFragment
-      implements LoaderManager.LoaderCallbacks<Cursor>, ListView.OnItemClickListener
-  {
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
-      return inflater.inflate(R.layout.blocked_contacts_fragment, container, false);
-    }
-
-    @Override
-    public void onCreate(Bundle bundle) {
-      super.onCreate(bundle);
-      setListAdapter(new BlockedContactAdapter(requireActivity(), GlideApp.with(this), null));
-      LoaderManager.getInstance(this).initLoader(0, null, this);
-    }
-
-    @Override
-    public void onStart() {
-      super.onStart();
-      LoaderManager.getInstance(this).restartLoader(0, null, this);
-    }
-
-    @Override
-    public void onActivityCreated(Bundle bundle) {
-      super.onActivityCreated(bundle);
-      getListView().setOnItemClickListener(this);
-    }
-
-    @Override
-    public @NonNull Loader<Cursor> onCreateLoader(int id, Bundle args) {
-      return new BlockedContactsLoader(getActivity());
-    }
-
-    @Override
-    public void onLoadFinished(@NonNull Loader<Cursor> loader, Cursor data) {
-      if (getListAdapter() != null) {
-        ((CursorAdapter) getListAdapter()).changeCursor(data);
-      }
-    }
-
-    @Override
-    public void onLoaderReset(@NonNull Loader<Cursor> loader) {
-      if (getListAdapter() != null) {
-        ((CursorAdapter) getListAdapter()).changeCursor(null);
-      }
-    }
-
-    @Override
-    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-      Recipient recipient = ((BlockedContactListItem)view).getRecipient();
-      BlockUnblockDialog.showUnblockFor(requireContext(), getLifecycle(), recipient, () -> {
-        RecipientUtil.unblock(requireContext(), recipient);
-        LoaderManager.getInstance(this).restartLoader(0, null, this);
-      });
-    }
-
-    private static class BlockedContactAdapter extends CursorAdapter {
-
-      private final GlideRequests glideRequests;
-
-      BlockedContactAdapter(@NonNull Context context, @NonNull GlideRequests glideRequests, @Nullable Cursor c) {
-        super(context, c);
-        this.glideRequests = glideRequests;
-      }
-
-      @Override
-      public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return LayoutInflater.from(context)
-                             .inflate(R.layout.blocked_contact_list_item, parent, false);
-      }
-
-      @Override
-      public void bindView(View view, Context context, Cursor cursor) {
-        RecipientId   recipientId = RecipientId.from(cursor.getLong(cursor.getColumnIndexOrThrow(RecipientDatabase.ID)));
-        LiveRecipient recipient   = Recipient.live(recipientId);
-
-        ((BlockedContactListItem) view).set(glideRequests, recipient);
-      }
-    }
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/ClearProfileAvatarActivity.java

@@ -3,24 +3,47 @@ package org.thoughtcrime.securesms;
 
 import android.app.Activity;
 import android.content.Intent;
+import android.os.Bundle;
+import android.view.ContextThemeWrapper;
+
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 
+import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
+import org.thoughtcrime.securesms.util.DynamicTheme;
+import org.thoughtcrime.securesms.util.ThemeUtil;
+
 public class ClearProfileAvatarActivity extends Activity {
 
+  private static final String ARG_TITLE = "arg_title";
+
+  public static Intent createForUserProfilePhoto() {
+    return new Intent("org.thoughtcrime.securesms.action.CLEAR_PROFILE_PHOTO");
+  }
+
+  public static Intent createForGroupProfilePhoto() {
+    Intent intent = new Intent("org.thoughtcrime.securesms.action.CLEAR_PROFILE_PHOTO");
+    intent.putExtra(ARG_TITLE, R.string.ClearProfileActivity_remove_group_photo);
+    return intent;
+  }
+
   @Override
   public void onResume() {
     super.onResume();
 
-    new AlertDialog.Builder(this)
-        .setTitle(R.string.ClearProfileActivity_remove_profile_photo)
-        .setNegativeButton(android.R.string.cancel, (dialog, which) -> finish())
-        .setPositiveButton(R.string.ClearProfileActivity_remove, (dialog, which) -> {
-          Intent result = new Intent();
-          result.putExtra("delete", true);
-          setResult(Activity.RESULT_OK, result);
-          finish();
-        })
-        .show();
+    int titleId = getIntent().getIntExtra(ARG_TITLE, R.string.ClearProfileActivity_remove_profile_photo);
+
+    new AlertDialog.Builder(new ContextThemeWrapper(this, DynamicTheme.isDarkTheme(this) ? R.style.TextSecure_DarkTheme : R.style.TextSecure_LightTheme))
+                   .setMessage(titleId)
+                   .setNegativeButton(android.R.string.cancel, (dialog, which) -> finish())
+                   .setPositiveButton(R.string.ClearProfileActivity_remove, (dialog, which) -> {
+                     Intent result = new Intent();
+                     result.putExtra("delete", true);
+                     setResult(Activity.RESULT_OK, result);
+                     finish();
+                   })
+                   .setOnCancelListener(dialog -> finish())
+                   .show();
   }
 
 }

app/src/main/java/org/thoughtcrime/securesms/ConfirmIdentityDialog.java

@@ -3,7 +3,6 @@ package org.thoughtcrime.securesms;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.DialogInterface;
-import android.database.Cursor;
 import android.os.AsyncTask;
 import android.text.SpannableString;
 import android.text.Spanned;
@@ -14,8 +13,8 @@ import androidx.appcompat.app.AlertDialog;
 
 import org.thoughtcrime.securesms.crypto.storage.TextSecureIdentityKeyStore;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
+import org.thoughtcrime.securesms.database.MessageDatabase;
 import org.thoughtcrime.securesms.database.MmsDatabase;
-import org.thoughtcrime.securesms.database.MmsSmsDatabase;
 import org.thoughtcrime.securesms.database.PushDatabase;
 import org.thoughtcrime.securesms.database.SmsDatabase;
 import org.thoughtcrime.securesms.database.documents.IdentityKeyMismatch;
@@ -51,7 +50,7 @@ public class ConfirmIdentityDialog extends AlertDialog {
     super(context);
 
       Recipient       recipient       = Recipient.resolved(mismatch.getRecipientId(context));
-      String          name            = recipient.toShortString(context);
+      String          name            = recipient.getDisplayName(context);
       String          introduction    = context.getString(R.string.ConfirmIdentityDialog_your_safety_number_with_s_has_changed, name, name);
       SpannableString spannableString = new SpannableString(introduction + " " +
                                                             context.getString(R.string.ConfirmIdentityDialog_you_may_wish_to_verify_your_safety_number_with_this_contact));
@@ -105,7 +104,6 @@ public class ConfirmIdentityDialog extends AlertDialog {
           }
 
           processMessageRecord(messageRecord);
-          processPendingMessageRecords(messageRecord.getThreadId(), mismatch);
 
           return null;
         }
@@ -115,29 +113,9 @@ public class ConfirmIdentityDialog extends AlertDialog {
           else                            processIncomingMessageRecord(messageRecord);
         }
 
-        private void processPendingMessageRecords(long threadId, IdentityKeyMismatch mismatch) {
-          MmsSmsDatabase        mmsSmsDatabase = DatabaseFactory.getMmsSmsDatabase(getContext());
-          Cursor                cursor         = mmsSmsDatabase.getIdentityConflictMessagesForThread(threadId);
-          MmsSmsDatabase.Reader reader         = mmsSmsDatabase.readerFor(cursor);
-          MessageRecord         record;
-
-          try {
-            while ((record = reader.getNext()) != null) {
-              for (IdentityKeyMismatch recordMismatch : record.getIdentityKeyMismatches()) {
-                if (mismatch.equals(recordMismatch)) {
-                  processMessageRecord(record);
-                }
-              }
-            }
-          } finally {
-            if (reader != null)
-              reader.close();
-          }
-        }
-
         private void processOutgoingMessageRecord(MessageRecord messageRecord) {
-          SmsDatabase        smsDatabase        = DatabaseFactory.getSmsDatabase(getContext());
-          MmsDatabase        mmsDatabase        = DatabaseFactory.getMmsDatabase(getContext());
+          MessageDatabase smsDatabase = DatabaseFactory.getSmsDatabase(getContext());
+          MessageDatabase mmsDatabase = DatabaseFactory.getMmsDatabase(getContext());
 
           if (messageRecord.isMms()) {
             mmsDatabase.removeMismatchedIdentity(messageRecord.getId(),
@@ -160,8 +138,8 @@ public class ConfirmIdentityDialog extends AlertDialog {
 
         private void processIncomingMessageRecord(MessageRecord messageRecord) {
           try {
-            PushDatabase pushDatabase = DatabaseFactory.getPushDatabase(getContext());
-            SmsDatabase  smsDatabase  = DatabaseFactory.getSmsDatabase(getContext());
+            PushDatabase    pushDatabase = DatabaseFactory.getPushDatabase(getContext());
+            MessageDatabase smsDatabase  = DatabaseFactory.getSmsDatabase(getContext());
 
             smsDatabase.removeMismatchedIdentity(messageRecord.getId(),
                                                  mismatch.getRecipientId(getContext()),
@@ -175,7 +153,9 @@ public class ConfirmIdentityDialog extends AlertDialog {
                                                                        messageRecord.getDateSent(),
                                                                        legacy ? Base64.decode(messageRecord.getBody()) : null,
                                                                        !legacy ? Base64.decode(messageRecord.getBody()) : null,
-                                                                       0, null);
+                                                                       0,
+                                                                       0,
+                                                                       null);
 
             long pushId = pushDatabase.insert(envelope);
 

app/src/main/java/org/thoughtcrime/securesms/ContactSelectionActivity.java

@@ -19,20 +19,18 @@ package org.thoughtcrime.securesms;
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 
-import org.thoughtcrime.securesms.logging.Log;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 
 import org.thoughtcrime.securesms.components.ContactFilterToolbar;
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
 import org.thoughtcrime.securesms.contacts.sync.DirectoryHelper;
-import org.thoughtcrime.securesms.recipients.Recipient;
+import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.recipients.RecipientId;
-import org.thoughtcrime.securesms.util.DynamicLanguage;
 import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
 import org.thoughtcrime.securesms.util.DynamicTheme;
+import org.thoughtcrime.securesms.util.ServiceUtil;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
-import org.thoughtcrime.securesms.util.ViewUtil;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.io.IOException;
@@ -44,14 +42,16 @@ import java.lang.ref.WeakReference;
  * @author Moxie Marlinspike
  *
  */
-public abstract class ContactSelectionActivity extends PassphraseRequiredActionBarActivity
+public abstract class ContactSelectionActivity extends PassphraseRequiredActivity
                                                implements SwipeRefreshLayout.OnRefreshListener,
-                                                          ContactSelectionListFragment.OnContactSelectedListener
+                                                          ContactSelectionListFragment.OnContactSelectedListener,
+                                                          ContactSelectionListFragment.ScrollCallback
 {
   private static final String TAG = ContactSelectionActivity.class.getSimpleName();
 
-  private final DynamicTheme    dynamicTheme    = new DynamicNoActionBarTheme();
-  private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
+  public static final String EXTRA_LAYOUT_RES_ID = "layout_res_id";
+
+  private final DynamicTheme dynamicTheme = new DynamicNoActionBarTheme();
 
   protected ContactSelectionListFragment contactsFragment;
 
@@ -60,18 +60,17 @@ public abstract class ContactSelectionActivity extends PassphraseRequiredActionB
   @Override
   protected void onPreCreate() {
     dynamicTheme.onCreate(this);
-    dynamicLanguage.onCreate(this);
   }
 
   @Override
   protected void onCreate(Bundle icicle, boolean ready) {
     if (!getIntent().hasExtra(ContactSelectionListFragment.DISPLAY_MODE)) {
       int displayMode = TextSecurePreferences.isSmsEnabled(this) ? DisplayMode.FLAG_ALL
-                                                                 : DisplayMode.FLAG_PUSH | DisplayMode.FLAG_ACTIVE_GROUPS | DisplayMode.FLAG_INACTIVE_GROUPS;
+                                                                 : DisplayMode.FLAG_PUSH | DisplayMode.FLAG_ACTIVE_GROUPS | DisplayMode.FLAG_INACTIVE_GROUPS | DisplayMode.FLAG_SELF;
       getIntent().putExtra(ContactSelectionListFragment.DISPLAY_MODE, displayMode);
     }
 
-    setContentView(R.layout.contact_selection_activity);
+    setContentView(getIntent().getIntExtra(EXTRA_LAYOUT_RES_ID, R.layout.contact_selection_activity));
 
     initializeToolbar();
     initializeResources();
@@ -82,7 +81,6 @@ public abstract class ContactSelectionActivity extends PassphraseRequiredActionB
   public void onResume() {
     super.onResume();
     dynamicTheme.onResume(this);
-    dynamicLanguage.onResume(this);
   }
 
   protected ContactFilterToolbar getToolbar() {
@@ -90,10 +88,9 @@ public abstract class ContactSelectionActivity extends PassphraseRequiredActionB
   }
 
   private void initializeToolbar() {
-    this.toolbar = ViewUtil.findById(this, R.id.toolbar);
+    this.toolbar = findViewById(R.id.toolbar);
     setSupportActionBar(toolbar);
 
-    assert  getSupportActionBar() != null;
     getSupportActionBar().setDisplayHomeAsUpEnabled(false);
     getSupportActionBar().setDisplayShowTitleEnabled(false);
     getSupportActionBar().setIcon(null);
@@ -116,11 +113,24 @@ public abstract class ContactSelectionActivity extends PassphraseRequiredActionB
   }
 
   @Override
-  public void onContactSelected(Optional<RecipientId> recipientId, String number) {}
+  public boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number) {
+    return true;
+  }
 
   @Override
   public void onContactDeselected(Optional<RecipientId> recipientId, String number) {}
 
+  @Override
+  public void onBeginScroll() {
+    hideKeyboard();
+  }
+
+  private void hideKeyboard() {
+    ServiceUtil.getInputMethodManager(this)
+               .hideSoftInputFromWindow(toolbar.getWindowToken(), 0);
+    toolbar.clearFocus();
+  }
+
   private static class RefreshDirectoryTask extends AsyncTask<Context, Void, Void> {
 
     private final WeakReference<ContactSelectionActivity> activity;

app/src/main/java/org/thoughtcrime/securesms/ContactSelectionListFragment.java

@@ -18,47 +18,64 @@ package org.thoughtcrime.securesms;
 
 
 import android.Manifest;
+import android.animation.LayoutTransition;
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.Intent;
 import android.database.Cursor;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
 import android.widget.Button;
+import android.widget.HorizontalScrollView;
 import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
-import androidx.fragment.app.Fragment;
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.constraintlayout.widget.ConstraintSet;
+import androidx.fragment.app.FragmentActivity;
 import androidx.loader.app.LoaderManager;
 import androidx.loader.content.Loader;
+import androidx.recyclerview.widget.DefaultItemAnimator;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
+import androidx.transition.AutoTransition;
+import androidx.transition.TransitionManager;
 
+import com.annimon.stream.Collectors;
+import com.annimon.stream.Stream;
+import com.google.android.material.chip.ChipGroup;
 import com.pnikosis.materialishprogress.ProgressWheel;
 
 import org.thoughtcrime.securesms.components.RecyclerViewFastScroller;
+import org.thoughtcrime.securesms.components.emoji.WarningTextView;
+import org.thoughtcrime.securesms.contacts.ContactChip;
 import org.thoughtcrime.securesms.contacts.ContactSelectionListAdapter;
 import org.thoughtcrime.securesms.contacts.ContactSelectionListItem;
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader;
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
 import org.thoughtcrime.securesms.contacts.SelectedContact;
+import org.thoughtcrime.securesms.contacts.sync.DirectoryHelper;
+import org.thoughtcrime.securesms.groups.SelectionLimits;
+import org.thoughtcrime.securesms.groups.ui.GroupLimitDialog;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.mms.GlideApp;
+import org.thoughtcrime.securesms.mms.GlideRequests;
 import org.thoughtcrime.securesms.permissions.Permissions;
-import org.thoughtcrime.securesms.contacts.sync.DirectoryHelper;
+import org.thoughtcrime.securesms.recipients.LiveRecipient;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.util.StickyHeaderDecoration;
 import org.thoughtcrime.securesms.util.TextSecurePreferences;
 import org.thoughtcrime.securesms.util.UsernameUtil;
-import org.thoughtcrime.securesms.util.ViewUtil;
 import org.thoughtcrime.securesms.util.adapter.FixedViewsAdapter;
 import org.thoughtcrime.securesms.util.adapter.RecyclerViewConcatenateAdapterStickyHeader;
 import org.thoughtcrime.securesms.util.concurrent.SimpleTask;
@@ -66,7 +83,7 @@ import org.thoughtcrime.securesms.util.views.SimpleProgressDialog;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.io.IOException;
-import java.util.LinkedList;
+import java.util.Collections;
 import java.util.List;
 import java.util.Set;
 
@@ -76,19 +93,26 @@ import java.util.Set;
  * @author Moxie Marlinspike
  *
  */
-public final class ContactSelectionListFragment extends    Fragment
+public final class ContactSelectionListFragment extends LoggingFragment
                                                 implements LoaderManager.LoaderCallbacks<Cursor>
 {
   @SuppressWarnings("unused")
   private static final String TAG = Log.tag(ContactSelectionListFragment.class);
 
-  public static final String DISPLAY_MODE = "display_mode";
-  public static final String MULTI_SELECT = "multi_select";
-  public static final String REFRESHABLE  = "refreshable";
-  public static final String RECENTS      = "recents";
+  private static final int CHIP_GROUP_EMPTY_CHILD_COUNT  = 1;
+  private static final int CHIP_GROUP_REVEAL_DURATION_MS = 150;
 
+  public static final int NO_LIMIT = Integer.MAX_VALUE;
+
+  public static final String DISPLAY_MODE      = "display_mode";
+  public static final String REFRESHABLE       = "refreshable";
+  public static final String RECENTS           = "recents";
+  public static final String SELECTION_LIMITS  = "selection_limits";
+  public static final String CURRENT_SELECTION = "current_selection";
+  public static final String HIDE_COUNT        = "hide_count";
+
+  private ConstraintLayout            constraintLayout;
   private TextView                    emptyText;
-  private Set<SelectedContact>        selectedContacts;
   private OnContactSelectedListener   onContactSelectedListener;
   private SwipeRefreshLayout          swipeRefresh;
   private View                        showContactsLayout;
@@ -99,16 +123,30 @@ public final class ContactSelectionListFragment extends    Fragment
   private RecyclerView                recyclerView;
   private RecyclerViewFastScroller    fastScroller;
   private ContactSelectionListAdapter cursorRecyclerViewAdapter;
+  private ChipGroup                   chipGroup;
+  private HorizontalScrollView        chipGroupScrollContainer;
+  private WarningTextView             groupLimit;
 
+  @Nullable private FixedViewsAdapter headerAdapter;
   @Nullable private FixedViewsAdapter footerAdapter;
-  @Nullable private InviteCallback    inviteCallback;
+  @Nullable private ListCallback      listCallback;
+  @Nullable private ScrollCallback    scrollCallback;
+            private GlideRequests     glideRequests;
+            private SelectionLimits   selectionLimit   = SelectionLimits.NO_LIMITS;
+            private Set<RecipientId>  currentSelection;
+            private boolean           isMulti;
+            private boolean           hideCount;
 
   @Override
   public void onAttach(@NonNull Context context) {
     super.onAttach(context);
 
-    if (context instanceof InviteCallback) {
-      inviteCallback = (InviteCallback) context;
+    if (context instanceof ListCallback) {
+      listCallback = (ListCallback) context;
+    }
+
+    if (context instanceof ScrollCallback) {
+      scrollCallback = (ScrollCallback) context;
     }
   }
 
@@ -130,14 +168,16 @@ public final class ContactSelectionListFragment extends    Fragment
                  if (!TextSecurePreferences.hasSuccessfullyRetrievedDirectory(getActivity())) {
                    handleContactPermissionGranted();
                  } else {
-                   this.getLoaderManager().initLoader(0, null, this);
+                   LoaderManager.getInstance(this).initLoader(0, null, this);
                  }
                })
                .onAnyDenied(() -> {
-                 getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
+                 FragmentActivity activity = requireActivity();
 
-                 if (getActivity().getIntent().getBooleanExtra(RECENTS, false)) {
-                   getLoaderManager().initLoader(0, null, ContactSelectionListFragment.this);
+                 activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
+
+                 if (activity.getIntent().getBooleanExtra(RECENTS, false)) {
+                   LoaderManager.getInstance(this).initLoader(0, null, ContactSelectionListFragment.this);
                  } else {
                    initializeNoContactsPermission();
                  }
@@ -149,64 +189,136 @@ public final class ContactSelectionListFragment extends    Fragment
   public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
     View view = inflater.inflate(R.layout.contact_selection_list_fragment, container, false);
 
-    emptyText               = ViewUtil.findById(view, android.R.id.empty);
-    recyclerView            = ViewUtil.findById(view, R.id.recycler_view);
-    swipeRefresh            = ViewUtil.findById(view, R.id.swipe_refresh);
-    fastScroller            = ViewUtil.findById(view, R.id.fast_scroller);
-    showContactsLayout      = view.findViewById(R.id.show_contacts_container);
-    showContactsButton      = view.findViewById(R.id.show_contacts_button);
-    showContactsDescription = view.findViewById(R.id.show_contacts_description);
-    showContactsProgress    = view.findViewById(R.id.progress);
-    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+    emptyText                = view.findViewById(android.R.id.empty);
+    recyclerView             = view.findViewById(R.id.recycler_view);
+    swipeRefresh             = view.findViewById(R.id.swipe_refresh);
+    fastScroller             = view.findViewById(R.id.fast_scroller);
+    showContactsLayout       = view.findViewById(R.id.show_contacts_container);
+    showContactsButton       = view.findViewById(R.id.show_contacts_button);
+    showContactsDescription  = view.findViewById(R.id.show_contacts_description);
+    showContactsProgress     = view.findViewById(R.id.progress);
+    chipGroup                = view.findViewById(R.id.chipGroup);
+    chipGroupScrollContainer = view.findViewById(R.id.chipGroupScrollContainer);
+    groupLimit               = view.findViewById(R.id.group_limit);
+    constraintLayout         = view.findViewById(R.id.container);
 
-    swipeRefresh.setEnabled(getActivity().getIntent().getBooleanExtra(REFRESHABLE, true));
+    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+    recyclerView.setItemAnimator(new DefaultItemAnimator() {
+      @Override
+      public boolean canReuseUpdatedViewHolder(@NonNull RecyclerView.ViewHolder viewHolder) {
+        return true;
+      }
+    });
+
+    Intent intent = requireActivity().getIntent();
+
+    swipeRefresh.setEnabled(intent.getBooleanExtra(REFRESHABLE, true));
+
+    hideCount      = intent.getBooleanExtra(HIDE_COUNT, false);
+    selectionLimit = intent.getParcelableExtra(SELECTION_LIMITS);
+    isMulti        = selectionLimit != null;
+
+    if (!isMulti) {
+      selectionLimit = SelectionLimits.NO_LIMITS;
+    }
+
+    currentSelection = getCurrentSelection();
+
+    updateGroupLimit(getChipCount());
 
     return view;
   }
 
+  private void updateGroupLimit(int chipCount) {
+    int members = currentSelection.size() + chipCount;
+    groupLimit.setText(getResources().getQuantityString(R.plurals.ContactSelectionListFragment_d_members, members, members));
+    groupLimit.setVisibility(isMulti && !hideCount ? View.VISIBLE : View.GONE);
+    groupLimit.setWarning(selectionWarningLimitExceeded());
+  }
+
   @Override
   public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
     Permissions.onRequestPermissionsResult(this, requestCode, permissions, grantResults);
   }
 
   public @NonNull List<SelectedContact> getSelectedContacts() {
-    List<SelectedContact> selected = new LinkedList<>();
-    if (selectedContacts != null) {
-      selected.addAll(selectedContacts);
+    if (cursorRecyclerViewAdapter == null) {
+      return Collections.emptyList();
     }
 
-    return selected;
+    return cursorRecyclerViewAdapter.getSelectedContacts();
   }
 
-  private boolean isMulti() {
-    return getActivity().getIntent().getBooleanExtra(MULTI_SELECT, false);
+  public int getSelectedContactsCount() {
+    if (cursorRecyclerViewAdapter == null) {
+      return 0;
+    }
+
+    return cursorRecyclerViewAdapter.getSelectedContactsCount();
+  }
+
+  private Set<RecipientId> getCurrentSelection() {
+    List<RecipientId> currentSelection = requireActivity().getIntent().getParcelableArrayListExtra(CURRENT_SELECTION);
+
+    return currentSelection == null ? Collections.emptySet()
+                                    : Collections.unmodifiableSet(Stream.of(currentSelection).collect(Collectors.toSet()));
+  }
+
+  public boolean isMulti() {
+    return isMulti;
   }
 
   private void initializeCursor() {
+    glideRequests = GlideApp.with(this);
+
     cursorRecyclerViewAdapter = new ContactSelectionListAdapter(requireContext(),
-                                                                GlideApp.with(this),
+                                                                glideRequests,
                                                                 null,
                                                                 new ListClickListener(),
-                                                                isMulti());
-    selectedContacts = cursorRecyclerViewAdapter.getSelectedContacts();
+                                                                isMulti,
+                                                                currentSelection);
 
     RecyclerViewConcatenateAdapterStickyHeader concatenateAdapter = new RecyclerViewConcatenateAdapterStickyHeader();
 
+    if (listCallback != null) {
+      headerAdapter = new FixedViewsAdapter(createNewGroupItem(listCallback));
+      headerAdapter.hide();
+      concatenateAdapter.addAdapter(headerAdapter);
+    }
+
     concatenateAdapter.addAdapter(cursorRecyclerViewAdapter);
-    if (inviteCallback != null) {
-      footerAdapter = new FixedViewsAdapter(createInviteActionView(inviteCallback));
+
+    if (listCallback != null) {
+      footerAdapter = new FixedViewsAdapter(createInviteActionView(listCallback));
       footerAdapter.hide();
       concatenateAdapter.addAdapter(footerAdapter);
     }
 
     recyclerView.setAdapter(concatenateAdapter);
     recyclerView.addItemDecoration(new StickyHeaderDecoration(concatenateAdapter, true, true));
+    recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
+      @Override
+      public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
+        if (newState == RecyclerView.SCROLL_STATE_DRAGGING) {
+          if (scrollCallback != null) {
+            scrollCallback.onBeginScroll();
+          }
+        }
+      }
+    });
   }
 
-  private View createInviteActionView(@NonNull InviteCallback inviteCallback) {
+  private View createInviteActionView(@NonNull ListCallback listCallback) {
     View view = LayoutInflater.from(requireContext())
                               .inflate(R.layout.contact_selection_invite_action_item, (ViewGroup) requireView(), false);
-    view.setOnClickListener(v -> inviteCallback.onInvite());
+    view.setOnClickListener(v -> listCallback.onInvite());
+    return view;
+  }
+
+  private View createNewGroupItem(@NonNull ListCallback listCallback) {
+    View view = LayoutInflater.from(requireContext())
+                              .inflate(R.layout.contact_selection_new_group_item, (ViewGroup) requireView(), false);
+    view.setOnClickListener(v -> listCallback.onNewGroup(false));
     return view;
   }
 
@@ -242,23 +354,28 @@ public final class ContactSelectionListFragment extends    Fragment
     swipeRefresh.setRefreshing(false);
   }
 
+  public boolean hasQueryFilter() {
+    return !TextUtils.isEmpty(cursorFilter);
+  }
+
   public void setRefreshing(boolean refreshing) {
     swipeRefresh.setRefreshing(refreshing);
   }
 
   public void reset() {
-    selectedContacts.clear();
+    cursorRecyclerViewAdapter.clearSelectedContacts();
 
     if (!isDetached() && !isRemoving() && getActivity() != null && !getActivity().isFinishing()) {
-      getLoaderManager().restartLoader(0, null, this);
+      LoaderManager.getInstance(this).restartLoader(0, null, this);
     }
   }
 
   @Override
   public @NonNull Loader<Cursor> onCreateLoader(int id, Bundle args) {
-    return new ContactsCursorLoader(getActivity(),
-                                    getActivity().getIntent().getIntExtra(DISPLAY_MODE, DisplayMode.FLAG_ALL),
-                                    cursorFilter, getActivity().getIntent().getBooleanExtra(RECENTS, false));
+    FragmentActivity activity = requireActivity();
+    return new ContactsCursorLoader(activity,
+                                    activity.getIntent().getIntExtra(DISPLAY_MODE, DisplayMode.FLAG_ALL),
+                                    cursorFilter, activity.getIntent().getBooleanExtra(RECENTS, false));
   }
 
   @Override
@@ -272,6 +389,14 @@ public final class ContactSelectionListFragment extends    Fragment
       footerAdapter.show();
     }
 
+    if (headerAdapter != null) {
+      if (TextUtils.isEmpty(cursorFilter)) {
+        headerAdapter.show();
+      } else {
+        headerAdapter.hide();
+      }
+    }
+
     emptyText.setText(R.string.contact_selection_group_activity__no_contacts);
     boolean useFastScroller = data != null && data.getCount() > 20;
     recyclerView.setVerticalScrollBarEnabled(!useFastScroller);
@@ -336,7 +461,17 @@ public final class ContactSelectionListFragment extends    Fragment
       SelectedContact selectedContact = contact.isUsernameType() ? SelectedContact.forUsername(contact.getRecipientId().orNull(), contact.getNumber())
                                                                  : SelectedContact.forPhone(contact.getRecipientId().orNull(), contact.getNumber());
 
-      if (!isMulti() || !selectedContacts.contains(selectedContact)) {
+      if (isMulti && Recipient.self().getId().equals(selectedContact.getOrCreateRecipientId(requireContext()))) {
+        Toast.makeText(requireContext(), R.string.ContactSelectionListFragment_you_do_not_need_to_add_yourself_to_the_group, Toast.LENGTH_SHORT).show();
+        return;
+      }
+
+      if (!isMulti || !cursorRecyclerViewAdapter.isSelectedContact(selectedContact)) {
+        if (selectionHardLimitReached()) {
+          GroupLimitDialog.showHardLimitMessage(requireContext());
+          return;
+        }
+
         if (contact.isUsernameType()) {
           AlertDialog loadingDialog = SimpleProgressDialog.show(requireContext());
 
@@ -346,31 +481,39 @@ public final class ContactSelectionListFragment extends    Fragment
             loadingDialog.dismiss();
             if (uuid.isPresent()) {
               Recipient recipient = Recipient.externalUsername(requireContext(), uuid.get(), contact.getNumber());
-              selectedContacts.add(SelectedContact.forUsername(recipient.getId(), contact.getNumber()));
-              contact.setChecked(true);
+              SelectedContact selected = SelectedContact.forUsername(recipient.getId(), contact.getNumber());
 
               if (onContactSelectedListener != null) {
-                onContactSelectedListener.onContactSelected(Optional.of(recipient.getId()), null);
+                if (onContactSelectedListener.onBeforeContactSelected(Optional.of(recipient.getId()), null)) {
+                  markContactSelected(selected);
+                  cursorRecyclerViewAdapter.notifyItemChanged(recyclerView.getChildAdapterPosition(contact), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
+                }
+              } else {
+                markContactSelected(selected);
+                cursorRecyclerViewAdapter.notifyItemChanged(recyclerView.getChildAdapterPosition(contact), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
               }
             } else {
               new AlertDialog.Builder(requireContext())
                              .setTitle(R.string.ContactSelectionListFragment_username_not_found)
                              .setMessage(getString(R.string.ContactSelectionListFragment_s_is_not_a_signal_user, contact.getNumber()))
-                             .setPositiveButton(R.string.ContactSelectionListFragment_okay, (dialog, which) -> dialog.dismiss())
+                             .setPositiveButton(android.R.string.ok, (dialog, which) -> dialog.dismiss())
                              .show();
             }
           });
         } else {
-          selectedContacts.add(selectedContact);
-          contact.setChecked(true);
-
           if (onContactSelectedListener != null) {
-            onContactSelectedListener.onContactSelected(contact.getRecipientId(), contact.getNumber());
+            if (onContactSelectedListener.onBeforeContactSelected(contact.getRecipientId(), contact.getNumber())) {
+              markContactSelected(selectedContact);
+              cursorRecyclerViewAdapter.notifyItemChanged(recyclerView.getChildAdapterPosition(contact), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
+            }
+          } else {
+            markContactSelected(selectedContact);
+            cursorRecyclerViewAdapter.notifyItemChanged(recyclerView.getChildAdapterPosition(contact), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
           }
         }
       } else {
-        selectedContacts.remove(selectedContact);
-        contact.setChecked(false);
+        markContactUnselected(selectedContact);
+        cursorRecyclerViewAdapter.notifyItemChanged(recyclerView.getChildAdapterPosition(contact), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
 
         if (onContactSelectedListener != null) {
           onContactSelectedListener.onContactDeselected(contact.getRecipientId(), contact.getNumber());
@@ -379,6 +522,122 @@ public final class ContactSelectionListFragment extends    Fragment
     }
   }
 
+  private boolean selectionHardLimitReached() {
+    return getChipCount() + currentSelection.size() >= selectionLimit.getHardLimit();
+  }
+
+  private boolean selectionWarningLimitReachedExactly() {
+    return getChipCount() + currentSelection.size() == selectionLimit.getRecommendedLimit();
+  }
+
+  private boolean selectionWarningLimitExceeded() {
+    return getChipCount() + currentSelection.size() > selectionLimit.getRecommendedLimit();
+  }
+
+  private void markContactSelected(@NonNull SelectedContact selectedContact) {
+    cursorRecyclerViewAdapter.addSelectedContact(selectedContact);
+    if (isMulti) {
+      addChipForSelectedContact(selectedContact);
+    }
+  }
+
+  private void markContactUnselected(@NonNull SelectedContact selectedContact) {
+    cursorRecyclerViewAdapter.removeFromSelectedContacts(selectedContact);
+    cursorRecyclerViewAdapter.notifyItemRangeChanged(0, cursorRecyclerViewAdapter.getItemCount(), ContactSelectionListAdapter.PAYLOAD_SELECTION_CHANGE);
+    removeChipForContact(selectedContact);
+  }
+
+  private void removeChipForContact(@NonNull SelectedContact contact) {
+    for (int i = chipGroup.getChildCount() - 1; i >= 0; i--) {
+      View v = chipGroup.getChildAt(i);
+      if (v instanceof ContactChip && contact.matches(((ContactChip) v).getContact())) {
+        chipGroup.removeView(v);
+      }
+    }
+
+    updateGroupLimit(getChipCount());
+
+    if (getChipCount() == 0) {
+      setChipGroupVisibility(ConstraintSet.GONE);
+    }
+  }
+
+  private void addChipForSelectedContact(@NonNull SelectedContact selectedContact) {
+    SimpleTask.run(getViewLifecycleOwner().getLifecycle(),
+                   ()       -> Recipient.resolved(selectedContact.getOrCreateRecipientId(requireContext())),
+                   resolved -> addChipForRecipient(resolved, selectedContact));
+  }
+
+  private void addChipForRecipient(@NonNull Recipient recipient, @NonNull SelectedContact selectedContact) {
+    final ContactChip chip = new ContactChip(requireContext());
+
+    if (getChipCount() == 0) {
+      setChipGroupVisibility(ConstraintSet.VISIBLE);
+    }
+
+    chip.setText(recipient.getShortDisplayName(requireContext()));
+    chip.setContact(selectedContact);
+    chip.setCloseIconVisible(true);
+    chip.setOnCloseIconClickListener(view -> {
+      markContactUnselected(selectedContact);
+
+      if (onContactSelectedListener != null) {
+        onContactSelectedListener.onContactDeselected(Optional.of(recipient.getId()), recipient.getE164().orNull());
+      }
+    });
+
+    chipGroup.getLayoutTransition().addTransitionListener(new LayoutTransition.TransitionListener() {
+      @Override
+      public void startTransition(LayoutTransition transition, ViewGroup container, View view, int transitionType) {
+      }
+
+      @Override
+      public void endTransition(LayoutTransition transition, ViewGroup container, View view, int transitionType) {
+        if (view == chip && transitionType == LayoutTransition.APPEARING) {
+          chipGroup.getLayoutTransition().removeTransitionListener(this);
+          registerChipRecipientObserver(chip, recipient.live());
+          chipGroup.post(ContactSelectionListFragment.this::smoothScrollChipsToEnd);
+        }
+      }
+    });
+
+    chip.setAvatar(glideRequests, recipient, () -> addChip(chip));
+  }
+
+  private void addChip(@NonNull ContactChip chip) {
+    chipGroup.addView(chip);
+    updateGroupLimit(getChipCount());
+    if (selectionWarningLimitReachedExactly()) {
+      GroupLimitDialog.showRecommendedLimitMessage(requireContext());
+    }
+  }
+
+  private int getChipCount() {
+    int count = chipGroup.getChildCount() - CHIP_GROUP_EMPTY_CHILD_COUNT;
+    if (count < 0) throw new AssertionError();
+    return count;
+  }
+
+  private void registerChipRecipientObserver(@NonNull ContactChip chip, @Nullable LiveRecipient recipient) {
+    if (recipient != null) {
+      recipient.observe(getViewLifecycleOwner(), resolved -> {
+        if (chip.isAttachedToWindow()) {
+          chip.setAvatar(glideRequests, resolved, null);
+          chip.setText(resolved.getShortDisplayName(chip.getContext()));
+        }
+      });
+    }
+  }
+
+  private void setChipGroupVisibility(int visibility) {
+    TransitionManager.beginDelayedTransition(constraintLayout, new AutoTransition().setDuration(CHIP_GROUP_REVEAL_DURATION_MS));
+
+    ConstraintSet constraintSet = new ConstraintSet();
+    constraintSet.clone(constraintLayout);
+    constraintSet.setVisibility(R.id.chipGroupScrollContainer, visibility);
+    constraintSet.applyTo(constraintLayout);
+  }
+
   public void setOnContactSelectedListener(OnContactSelectedListener onContactSelectedListener) {
     this.onContactSelectedListener = onContactSelectedListener;
   }
@@ -387,12 +646,23 @@ public final class ContactSelectionListFragment extends    Fragment
     this.swipeRefresh.setOnRefreshListener(onRefreshListener);
   }
 
+  private void smoothScrollChipsToEnd() {
+    int x = chipGroupScrollContainer.getLayoutDirection() == View.LAYOUT_DIRECTION_LTR ? chipGroup.getWidth() : 0;
+    chipGroupScrollContainer.smoothScrollTo(x, 0);
+  }
+
   public interface OnContactSelectedListener {
-    void onContactSelected(Optional<RecipientId> recipientId, String number);
+    /** @return True if the contact is allowed to be selected, otherwise false. */
+    boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number);
     void onContactDeselected(Optional<RecipientId> recipientId, String number);
   }
 
-  public interface InviteCallback {
+  public interface ListCallback {
     void onInvite();
+    void onNewGroup(boolean forceV1);
+  }
+
+  public interface ScrollCallback {
+    void onBeginScroll();
   }
 }

app/src/main/java/org/thoughtcrime/securesms/CountrySelectionFragment.java

@@ -1,101 +0,0 @@
-package org.thoughtcrime.securesms;
-
-import android.app.Activity;
-import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.fragment.app.ListFragment;
-import androidx.loader.app.LoaderManager;
-import androidx.loader.content.Loader;
-import android.text.Editable;
-import android.text.TextWatcher;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.EditText;
-import android.widget.ListView;
-import android.widget.SimpleAdapter;
-
-
-import org.thoughtcrime.securesms.database.loaders.CountryListLoader;
-
-import java.util.ArrayList;
-import java.util.Map;
-
-public class CountrySelectionFragment extends ListFragment implements LoaderManager.LoaderCallbacks<ArrayList<Map<String, String>>> {
-
-  private EditText countryFilter;
-  private CountrySelectedListener listener;
-
-  @Override
-  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) {
-    return inflater.inflate(R.layout.country_selection_fragment, container, false);
-  }
-
-  @Override
-  public void onActivityCreated(Bundle bundle) {
-    super.onActivityCreated(bundle);
-    this.countryFilter = (EditText)getView().findViewById(R.id.country_search);
-    this.countryFilter.addTextChangedListener(new FilterWatcher());
-    getLoaderManager().initLoader(0, null, this).forceLoad();
-  }
-
-  @Override
-  public void onAttach(Activity activity) {
-    super.onAttach(activity);
-    this.listener = (CountrySelectedListener)activity;
-  }
-
-  @Override
-  public void onListItemClick(ListView listView, View view, int position, long id) {
-    Map<String, String> item = (Map<String, String>)this.getListAdapter().getItem(position);
-    if (this.listener != null) {
-      this.listener.countrySelected(item.get("country_name"),
-                                    Integer.parseInt(item.get("country_code").substring(1)));
-    }
-  }
-
-  @Override
-  public @NonNull Loader<ArrayList<Map<String, String>>> onCreateLoader(int arg0, Bundle arg1) {
-    return new CountryListLoader(getActivity());
-  }
-
-  @Override
-  public void onLoadFinished(@NonNull Loader<ArrayList<Map<String, String>>> loader,
-                             ArrayList<Map<String, String>> results)
-  {
-    String[] from = {"country_name", "country_code"};
-    int[] to      = {R.id.country_name, R.id.country_code};
-    this.setListAdapter(new SimpleAdapter(getActivity(), results, R.layout.country_list_item, from, to));
-
-    if (this.countryFilter != null && this.countryFilter.getText().length() != 0) {
-      ((SimpleAdapter)getListAdapter()).getFilter().filter(this.countryFilter.getText().toString());
-    }
-  }
-
-  @Override
-  public void onLoaderReset(@NonNull Loader<ArrayList<Map<String, String>>> arg0) {
-    this.setListAdapter(null);
-  }
-
-  public interface CountrySelectedListener {
-    public void countrySelected(String countryName, int countryCode);
-  }
-
-  private class FilterWatcher implements TextWatcher {
-
-    @Override
-    public void afterTextChanged(Editable s) {
-      if (getListAdapter() != null) {
-        ((SimpleAdapter)getListAdapter()).getFilter().filter(s.toString());
-      }
-    }
-
-    @Override
-    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-    }
-
-    @Override
-    public void onTextChanged(CharSequence s, int start, int before, int count) {
-    }
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/DatabaseMigrationActivity.java

@@ -21,7 +21,7 @@ import org.thoughtcrime.securesms.database.SmsMigrator.ProgressDescription;
 import org.thoughtcrime.securesms.service.ApplicationMigrationService;
 import org.thoughtcrime.securesms.service.ApplicationMigrationService.ImportState;
 
-public class DatabaseMigrationActivity extends PassphraseRequiredActionBarActivity {
+public class DatabaseMigrationActivity extends PassphraseRequiredActivity {
 
   private final ImportServiceConnection serviceConnection  = new ImportServiceConnection();
   private final ImportStateHandler      importStateHandler = new ImportStateHandler();

app/src/main/java/org/thoughtcrime/securesms/DeviceActivity.java

@@ -23,7 +23,6 @@ import org.thoughtcrime.securesms.crypto.ProfileKeyUtil;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.permissions.Permissions;
-import org.thoughtcrime.securesms.push.AccountManagerFactory;
 import org.thoughtcrime.securesms.qr.ScanListener;
 import org.thoughtcrime.securesms.util.Base64;
 import org.thoughtcrime.securesms.util.DynamicLanguage;
@@ -42,7 +41,7 @@ import org.whispersystems.signalservice.internal.push.DeviceLimitExceededExcepti
 
 import java.io.IOException;
 
-public class DeviceActivity extends PassphraseRequiredActionBarActivity
+public class DeviceActivity extends PassphraseRequiredActivity
     implements Button.OnClickListener, ScanListener, DeviceLinkFragment.LinkClickedListener
 {
 

app/src/main/java/org/thoughtcrime/securesms/DeviceAddFragment.java

@@ -6,7 +6,7 @@ import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Bundle;
 import androidx.annotation.NonNull;
-import androidx.fragment.app.Fragment;
+
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewAnimationUtils;
@@ -20,7 +20,7 @@ import org.thoughtcrime.securesms.qr.ScanListener;
 import org.thoughtcrime.securesms.qr.ScanningThread;
 import org.thoughtcrime.securesms.util.ViewUtil;
 
-public class DeviceAddFragment extends Fragment {
+public class DeviceAddFragment extends LoggingFragment {
 
   private ViewGroup      container;
   private LinearLayout   overlay;

app/src/main/java/org/thoughtcrime/securesms/DeviceListFragment.java

@@ -53,7 +53,7 @@ public class DeviceListFragment extends ListFragment
   @Override
   public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
-    this.locale = (Locale) getArguments().getSerializable(PassphraseRequiredActionBarActivity.LOCALE_EXTRA);
+    this.locale = (Locale) getArguments().getSerializable(PassphraseRequiredActivity.LOCALE_EXTRA);
   }
 
   @Override
@@ -164,25 +164,29 @@ public class DeviceListFragment extends ListFragment
 
   @SuppressLint("StaticFieldLeak")
   private void handleDisconnectDevice(final long deviceId) {
-    new ProgressDialogAsyncTask<Void, Void, Void>(getActivity(),
-                                                  R.string.DeviceListActivity_unlinking_device_no_ellipsis,
-                                                  R.string.DeviceListActivity_unlinking_device)
+    new ProgressDialogAsyncTask<Void, Void, Boolean>(getActivity(),
+                                                     R.string.DeviceListActivity_unlinking_device_no_ellipsis,
+                                                     R.string.DeviceListActivity_unlinking_device)
     {
       @Override
-      protected Void doInBackground(Void... params) {
+      protected Boolean doInBackground(Void... params) {
         try {
           accountManager.removeDevice(deviceId);
+          return true;
         } catch (IOException e) {
           Log.w(TAG, e);
-          Toast.makeText(getActivity(), R.string.DeviceListActivity_network_failed, Toast.LENGTH_LONG).show();
+          return false;
         }
-        return null;
       }
 
       @Override
-      protected void onPostExecute(Void result) {
+      protected void onPostExecute(Boolean result) {
         super.onPostExecute(result);
-        getLoaderManager().restartLoader(0, null, DeviceListFragment.this);
+        if (result) {
+          getLoaderManager().restartLoader(0, null, DeviceListFragment.this);
+        } else {
+          Toast.makeText(getActivity(), R.string.DeviceListActivity_network_failed, Toast.LENGTH_LONG).show();
+        }
       }
     }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
   }

app/src/main/java/org/thoughtcrime/securesms/DeviceProvisioningActivity.java

@@ -5,7 +5,7 @@ import android.os.Bundle;
 import androidx.appcompat.app.AlertDialog;
 import android.view.Window;
 
-public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActivity {
+public class DeviceProvisioningActivity extends PassphraseRequiredActivity {
 
   @SuppressWarnings("unused")
   private static final String TAG = DeviceProvisioningActivity.class.getSimpleName();
@@ -17,9 +17,6 @@ public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActiv
 
   @Override
   protected void onCreate(Bundle bundle, boolean ready) {
-    assert  getSupportActionBar() != null;
-    getSupportActionBar().hide();
-
     AlertDialog dialog = new AlertDialog.Builder(this)
         .setTitle(getString(R.string.DeviceProvisioningActivity_link_a_signal_device))
         .setMessage(getString(R.string.DeviceProvisioningActivity_it_looks_like_youre_trying_to_link_a_signal_device_using_a_3rd_party_scanner))
@@ -29,7 +26,7 @@ public class DeviceProvisioningActivity extends PassphraseRequiredActionBarActiv
           startActivity(intent);
           finish();
         })
-        .setNegativeButton(R.string.DeviceProvisioningActivity_cancel, (dialog12, which) -> {
+        .setNegativeButton(android.R.string.cancel, (dialog12, which) -> {
           dialog12.dismiss();
           finish();
         })

app/src/main/java/org/thoughtcrime/securesms/ExpirationDialog.java

@@ -1,14 +1,17 @@
 package org.thoughtcrime.securesms;
 
 import android.content.Context;
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AlertDialog;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+
 import org.thoughtcrime.securesms.util.ExpirationUtil;
 
+import java.util.Arrays;
+
 import cn.carbswang.android.numberpickerview.library.NumberPickerView;
 
 public class ExpirationDialog extends AlertDialog {
@@ -36,7 +39,7 @@ public class ExpirationDialog extends AlertDialog {
     builder.setView(view);
     builder.setPositiveButton(android.R.string.ok, (dialog, which) -> {
       int selected = ((NumberPickerView)view.findViewById(R.id.expiration_number_picker)).getValue();
-      listener.onClick(context.getResources().getIntArray(R.array.expiration_times)[selected]);
+      listener.onClick(getExpirationTimes(context, currentExpiration)[selected]);
     });
     builder.setNegativeButton(android.R.string.cancel, null);
     builder.show();
@@ -47,7 +50,7 @@ public class ExpirationDialog extends AlertDialog {
     final View             view                    = inflater.inflate(R.layout.expiration_dialog, null);
     final NumberPickerView numberPickerView        = view.findViewById(R.id.expiration_number_picker);
     final TextView         textView                = view.findViewById(R.id.expiration_details);
-    final int[]            expirationTimes         = context.getResources().getIntArray(R.array.expiration_times);
+    final int[]            expirationTimes         = getExpirationTimes(context, currentExpiration);
     final String[]         expirationDisplayValues = new String[expirationTimes.length];
 
     int selectedIndex = expirationTimes.length - 1;
@@ -80,6 +83,19 @@ public class ExpirationDialog extends AlertDialog {
     return view;
   }
 
+  private static int[] getExpirationTimes(Context context, int currentExpiration) {
+    int[] expirationTimes = context.getResources().getIntArray(R.array.expiration_times);
+    int   location        = Arrays.binarySearch(expirationTimes, currentExpiration);
+    if (location < 0) {
+      int[] temp = Arrays.copyOf(expirationTimes, expirationTimes.length + 1);
+      temp[temp.length - 1] = currentExpiration;
+      Arrays.sort(temp);
+      expirationTimes = temp;
+    }
+
+    return expirationTimes;
+  }
+
   public interface OnClickListener {
     public void onClick(int expirationTime);
   }

app/src/main/java/org/thoughtcrime/securesms/GroupCreateActivity.java

@@ -1,619 +0,0 @@
-/*
- * Copyright (C) 2014 Open Whisper Systems
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.thoughtcrime.securesms;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.drawable.Drawable;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.text.TextUtils;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.ListView;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.core.content.ContextCompat;
-
-import com.bumptech.glide.load.engine.DiskCacheStrategy;
-import com.bumptech.glide.request.target.SimpleTarget;
-import com.bumptech.glide.request.transition.Transition;
-
-import org.thoughtcrime.securesms.components.PushRecipientsPanel;
-import org.thoughtcrime.securesms.components.PushRecipientsPanel.RecipientsPanelChangedListener;
-import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
-import org.thoughtcrime.securesms.contacts.RecipientsEditor;
-import org.thoughtcrime.securesms.contacts.avatars.ContactColors;
-import org.thoughtcrime.securesms.contacts.avatars.ResourceContactPhoto;
-import org.thoughtcrime.securesms.conversation.ConversationActivity;
-import org.thoughtcrime.securesms.database.DatabaseFactory;
-import org.thoughtcrime.securesms.database.GroupDatabase;
-import org.thoughtcrime.securesms.database.GroupDatabase.GroupRecord;
-import org.thoughtcrime.securesms.database.RecipientDatabase;
-import org.thoughtcrime.securesms.database.ThreadDatabase;
-import org.thoughtcrime.securesms.groups.GroupId;
-import org.thoughtcrime.securesms.groups.GroupManager;
-import org.thoughtcrime.securesms.groups.GroupManager.GroupActionResult;
-import org.thoughtcrime.securesms.logging.Log;
-import org.thoughtcrime.securesms.mediasend.AvatarSelectionActivity;
-import org.thoughtcrime.securesms.mediasend.AvatarSelectionBottomSheetDialogFragment;
-import org.thoughtcrime.securesms.mediasend.Media;
-import org.thoughtcrime.securesms.mms.DecryptableStreamUriLoader.DecryptableUri;
-import org.thoughtcrime.securesms.mms.GlideApp;
-import org.thoughtcrime.securesms.profiles.AvatarHelper;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.RecipientId;
-import org.thoughtcrime.securesms.util.BitmapUtil;
-import org.thoughtcrime.securesms.util.DynamicLanguage;
-import org.thoughtcrime.securesms.util.DynamicTheme;
-import org.thoughtcrime.securesms.util.SelectedRecipientsAdapter;
-import org.thoughtcrime.securesms.util.SelectedRecipientsAdapter.OnRecipientDeletedListener;
-import org.thoughtcrime.securesms.util.TextSecurePreferences;
-import org.thoughtcrime.securesms.util.ViewUtil;
-import org.thoughtcrime.securesms.util.task.ProgressDialogAsyncTask;
-import org.whispersystems.libsignal.util.guava.Optional;
-import org.whispersystems.signalservice.api.util.InvalidNumberException;
-
-import java.io.IOException;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Set;
-
-/**
- * Activity to create and update groups
- *
- * @author Jake McGinty
- */
-public class GroupCreateActivity extends PassphraseRequiredActionBarActivity
-                                 implements OnRecipientDeletedListener,
-                                            RecipientsPanelChangedListener
-{
-
-  private final static String TAG = GroupCreateActivity.class.getSimpleName();
-
-  public static final String GROUP_ID_EXTRA      = "group_id";
-  public static final String GROUP_THREAD_EXTRA  = "group_thread";
-
-  private final DynamicTheme    dynamicTheme    = new DynamicTheme();
-  private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
-
-  private static final short REQUEST_CODE_SELECT_AVATAR = 26165;
-  private static final int   PICK_CONTACT               = 1;
-
-  private EditText     groupName;
-  private ListView     lv;
-  private ImageView    avatar;
-  private TextView     creatingText;
-  private Bitmap       avatarBmp;
-
-  @NonNull private Optional<GroupData> groupToUpdate = Optional.absent();
-
-  @Override
-  protected void onPreCreate() {
-    dynamicTheme.onCreate(this);
-    dynamicLanguage.onCreate(this);
-  }
-
-  @Override
-  protected void onCreate(Bundle state, boolean ready) {
-    setContentView(R.layout.group_create_activity);
-    //noinspection ConstantConditions
-    initializeAppBar();
-    initializeResources();
-    initializeExistingGroup();
-  }
-
-  @Override
-  public void onResume() {
-    super.onResume();
-    dynamicTheme.onResume(this);
-    dynamicLanguage.onResume(this);
-    updateViewState();
-  }
-
-  private boolean isSignalGroup() {
-    return TextSecurePreferences.isPushRegistered(this) && !getAdapter().hasNonPushMembers();
-  }
-
-  private void disableSignalGroupViews(int reasonResId) {
-    View pushDisabled = findViewById(R.id.push_disabled);
-    pushDisabled.setVisibility(View.VISIBLE);
-    ((TextView) findViewById(R.id.push_disabled_reason)).setText(reasonResId);
-    avatar.setEnabled(false);
-    groupName.setEnabled(false);
-  }
-
-  private void enableSignalGroupViews() {
-    findViewById(R.id.push_disabled).setVisibility(View.GONE);
-    avatar.setEnabled(true);
-    groupName.setEnabled(true);
-  }
-
-  @SuppressWarnings("ConstantConditions")
-  private void updateViewState() {
-    if (!TextSecurePreferences.isPushRegistered(this)) {
-      disableSignalGroupViews(R.string.GroupCreateActivity_youre_not_registered_for_signal);
-      getSupportActionBar().setTitle(R.string.GroupCreateActivity_actionbar_mms_title);
-    } else if (getAdapter().hasNonPushMembers()) {
-      disableSignalGroupViews(R.string.GroupCreateActivity_contacts_dont_support_push);
-      getSupportActionBar().setTitle(R.string.GroupCreateActivity_actionbar_mms_title);
-    } else {
-      enableSignalGroupViews();
-      getSupportActionBar().setTitle(groupToUpdate.isPresent()
-                                     ? R.string.GroupCreateActivity_actionbar_edit_title
-                                     : R.string.GroupCreateActivity_actionbar_title);
-    }
-  }
-
-  private static boolean isActiveInDirectory(Recipient recipient) {
-    return recipient.resolve().getRegistered() == RecipientDatabase.RegisteredState.REGISTERED;
-  }
-
-  private void addSelectedContacts(@NonNull Recipient... recipients) {
-    new AddMembersTask(this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, recipients);
-  }
-
-  private void addSelectedContacts(@NonNull Collection<Recipient> recipients) {
-    addSelectedContacts(recipients.toArray(new Recipient[recipients.size()]));
-  }
-
-  private void initializeAppBar() {
-    Drawable upIcon = ContextCompat.getDrawable(this, R.drawable.ic_arrow_left_24);
-    getSupportActionBar().setHomeAsUpIndicator(upIcon);
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-  }
-
-  private void initializeResources() {
-    RecipientsEditor    recipientsEditor = ViewUtil.findById(this, R.id.recipients_text);
-    PushRecipientsPanel recipientsPanel  = ViewUtil.findById(this, R.id.recipients);
-    lv           = ViewUtil.findById(this, R.id.selected_contacts_list);
-    avatar       = ViewUtil.findById(this, R.id.avatar);
-    groupName    = ViewUtil.findById(this, R.id.group_name);
-    creatingText = ViewUtil.findById(this, R.id.creating_group_text);
-    SelectedRecipientsAdapter adapter = new SelectedRecipientsAdapter(this);
-    adapter.setOnRecipientDeletedListener(this);
-    lv.setAdapter(adapter);
-    recipientsEditor.setHint(R.string.recipients_panel__add_members);
-    recipientsPanel.setPanelChangeListener(this);
-    findViewById(R.id.contacts_button).setOnClickListener(new AddRecipientButtonListener());
-    avatar.setImageDrawable(getDefaultGroupAvatar());
-    avatar.setOnClickListener(view -> AvatarSelectionBottomSheetDialogFragment.create(avatarBmp != null, false, REQUEST_CODE_SELECT_AVATAR).show(getSupportFragmentManager(), null));
-  }
-
-  private Drawable getDefaultGroupAvatar() {
-    return new ResourceContactPhoto(R.drawable.ic_group_outline_34, R.drawable.ic_group_outline_20).asDrawable(this, ContactColors.UNKNOWN_COLOR.toConversationColor(this));
-  }
-
-  private void initializeExistingGroup() {
-    final GroupId groupId = GroupId.parseNullableOrThrow(getIntent().getStringExtra(GROUP_ID_EXTRA));
-
-    if (groupId != null) {
-      new FillExistingGroupInfoAsyncTask(this).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, groupId);
-    }
-  }
-
-  @Override
-  public boolean onPrepareOptionsMenu(Menu menu) {
-    MenuInflater inflater = this.getMenuInflater();
-    menu.clear();
-
-    inflater.inflate(R.menu.group_create, menu);
-    super.onPrepareOptionsMenu(menu);
-    return true;
-  }
-
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    super.onOptionsItemSelected(item);
-    switch (item.getItemId()) {
-      case android.R.id.home:
-        finish();
-        return true;
-      case R.id.menu_create_group:
-        if (groupToUpdate.isPresent()) handleGroupUpdate();
-        else                           handleGroupCreate();
-        return true;
-    }
-
-    return false;
-  }
-
-  @Override
-  public void onRecipientDeleted(Recipient recipient) {
-    getAdapter().remove(recipient);
-    updateViewState();
-  }
-
-  @Override
-  public void onRecipientsPanelUpdate(List<Recipient> recipients) {
-    if (recipients != null && !recipients.isEmpty()) addSelectedContacts(recipients);
-  }
-
-  private void handleGroupCreate() {
-    if (getAdapter().getCount() < 1) {
-      Log.i(TAG, getString(R.string.GroupCreateActivity_contacts_no_members));
-      Toast.makeText(getApplicationContext(), R.string.GroupCreateActivity_contacts_no_members, Toast.LENGTH_SHORT).show();
-      return;
-    }
-    if (isSignalGroup()) {
-      new CreateSignalGroupTask(this, avatarBmp, getGroupName(), getAdapter().getRecipients()).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-    } else {
-      new CreateMmsGroupTask(this, getAdapter().getRecipients()).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-    }
-  }
-
-  private void handleGroupUpdate() {
-    new UpdateSignalGroupTask(this, groupToUpdate.get().id, avatarBmp,
-                              getGroupName(), getAdapter().getRecipients()).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-  }
-
-  private void handleOpenConversation(long threadId, Recipient recipient) {
-    Intent intent = new Intent(this, ConversationActivity.class);
-    intent.putExtra(ConversationActivity.THREAD_ID_EXTRA, threadId);
-    intent.putExtra(ConversationActivity.DISTRIBUTION_TYPE_EXTRA, ThreadDatabase.DistributionTypes.DEFAULT);
-    intent.putExtra(ConversationActivity.RECIPIENT_EXTRA, recipient.getId());
-    startActivity(intent);
-    finish();
-  }
-
-  private SelectedRecipientsAdapter getAdapter() {
-    return (SelectedRecipientsAdapter)lv.getAdapter();
-  }
-
-  private @Nullable String getGroupName() {
-    return groupName.getText() != null ? groupName.getText().toString() : null;
-  }
-
-  @Override
-  public void onActivityResult(int reqCode, int resultCode, final Intent data) {
-    super.onActivityResult(reqCode, resultCode, data);
-
-    if (data == null || resultCode != Activity.RESULT_OK)
-      return;
-
-    switch (reqCode) {
-      case PICK_CONTACT:
-        List<RecipientId> selected = data.getParcelableArrayListExtra(PushContactSelectionActivity.KEY_SELECTED_RECIPIENTS);
-
-        for (RecipientId contact : selected) {
-          Recipient recipient = Recipient.resolved(contact);
-          addSelectedContacts(recipient);
-        }
-
-        break;
-      case REQUEST_CODE_SELECT_AVATAR:
-        if (data.getBooleanExtra("delete", false)) {
-          avatarBmp = null;
-          avatar.setImageDrawable(getDefaultGroupAvatar());
-          return;
-        }
-
-        final Media          result         = data.getParcelableExtra(AvatarSelectionActivity.EXTRA_MEDIA);
-        final DecryptableUri decryptableUri = new DecryptableUri(result.getUri());
-
-        GlideApp.with(this)
-                .asBitmap()
-                .load(decryptableUri)
-                .skipMemoryCache(true)
-                .diskCacheStrategy(DiskCacheStrategy.NONE)
-                .centerCrop()
-                .override(AvatarHelper.AVATAR_DIMENSIONS, AvatarHelper.AVATAR_DIMENSIONS)
-                .into(new SimpleTarget<Bitmap>() {
-                  @Override
-                  public void onResourceReady(@NonNull Bitmap resource, Transition<? super Bitmap> transition) {
-                    setAvatar(decryptableUri, resource);
-                  }
-                });
-    }
-  }
-
-  private class AddRecipientButtonListener implements View.OnClickListener {
-    @Override
-    public void onClick(View v) {
-      Intent intent = new Intent(GroupCreateActivity.this, PushContactSelectionActivity.class);
-      if (groupToUpdate.isPresent()) {
-        intent.putExtra(ContactSelectionListFragment.DISPLAY_MODE, DisplayMode.FLAG_PUSH);
-      } else {
-        intent.putExtra(ContactSelectionListFragment.DISPLAY_MODE, DisplayMode.FLAG_PUSH | DisplayMode.FLAG_SMS);
-      }
-      startActivityForResult(intent, PICK_CONTACT);
-    }
-  }
-
-  private static class CreateMmsGroupTask extends AsyncTask<Void,Void,GroupActionResult> {
-    private final GroupCreateActivity activity;
-    private final Set<Recipient>      members;
-
-    public CreateMmsGroupTask(GroupCreateActivity activity, Set<Recipient> members) {
-      this.activity     = activity;
-      this.members      = members;
-    }
-
-    @Override
-    protected GroupActionResult doInBackground(Void... avoid) {
-      List<RecipientId> memberAddresses = new LinkedList<>();
-
-      for (Recipient recipient : members) {
-        memberAddresses.add(recipient.getId());
-      }
-      memberAddresses.add(Recipient.self().getId());
-
-      GroupId.Mms groupId          = DatabaseFactory.getGroupDatabase(activity).getOrCreateMmsGroupForMembers(memberAddresses);
-      RecipientId groupRecipientId = DatabaseFactory.getRecipientDatabase(activity).getOrInsertFromGroupId(groupId);
-      Recipient   groupRecipient   = Recipient.resolved(groupRecipientId);
-      long        threadId         = DatabaseFactory.getThreadDatabase(activity).getThreadIdFor(groupRecipient, ThreadDatabase.DistributionTypes.DEFAULT);
-
-      return new GroupActionResult(groupRecipient, threadId);
-    }
-
-    @Override
-    protected void onPostExecute(GroupActionResult result) {
-      activity.handleOpenConversation(result.getThreadId(), result.getGroupRecipient());
-    }
-
-    @Override
-    protected void onProgressUpdate(Void... values) {
-      super.onProgressUpdate(values);
-    }
-  }
-
-  private abstract static class SignalGroupTask extends AsyncTask<Void,Void,Optional<GroupActionResult>> {
-
-    protected GroupCreateActivity activity;
-    protected Bitmap              avatar;
-    protected Set<Recipient>      members;
-    protected String              name;
-
-    public SignalGroupTask(GroupCreateActivity activity,
-                           Bitmap              avatar,
-                           String              name,
-                           Set<Recipient>      members)
-    {
-      this.activity     = activity;
-      this.avatar       = avatar;
-      this.name         = name;
-      this.members      = members;
-    }
-
-    @Override
-    protected void onPreExecute() {
-      activity.findViewById(R.id.group_details_layout).setVisibility(View.GONE);
-      activity.findViewById(R.id.creating_group_layout).setVisibility(View.VISIBLE);
-      activity.findViewById(R.id.menu_create_group).setVisibility(View.GONE);
-        final int titleResId = activity.groupToUpdate.isPresent()
-                             ? R.string.GroupCreateActivity_updating_group
-                             : R.string.GroupCreateActivity_creating_group;
-        activity.creatingText.setText(activity.getString(titleResId, activity.getGroupName()));
-      }
-
-    @Override
-    protected void onPostExecute(Optional<GroupActionResult> groupActionResultOptional) {
-      if (activity.isFinishing()) return;
-      activity.findViewById(R.id.group_details_layout).setVisibility(View.VISIBLE);
-      activity.findViewById(R.id.creating_group_layout).setVisibility(View.GONE);
-      activity.findViewById(R.id.menu_create_group).setVisibility(View.VISIBLE);
-    }
-  }
-
-  private static class CreateSignalGroupTask extends SignalGroupTask {
-    public CreateSignalGroupTask(GroupCreateActivity activity, Bitmap avatar, String name, Set<Recipient> members) {
-      super(activity, avatar, name, members);
-    }
-
-    @Override
-    protected Optional<GroupActionResult> doInBackground(Void... aVoid) {
-      return Optional.of(GroupManager.createGroup(activity, members, avatar, name, false));
-    }
-
-    @Override
-    protected void onPostExecute(Optional<GroupActionResult> result) {
-      if (result.isPresent() && result.get().getThreadId() > -1) {
-        if (!activity.isFinishing()) {
-          activity.handleOpenConversation(result.get().getThreadId(), result.get().getGroupRecipient());
-        }
-      } else {
-        super.onPostExecute(result);
-        Toast.makeText(activity.getApplicationContext(),
-                       R.string.GroupCreateActivity_contacts_invalid_number, Toast.LENGTH_LONG).show();
-      }
-    }
-  }
-
-  private static class UpdateSignalGroupTask extends SignalGroupTask {
-    private final GroupId groupId;
-
-    public UpdateSignalGroupTask(GroupCreateActivity activity, GroupId groupId,
-                                 Bitmap avatar, String name, Set<Recipient> members)
-    {
-      super(activity, avatar, name, members);
-      this.groupId = groupId;
-    }
-
-    @Override
-    protected Optional<GroupActionResult> doInBackground(Void... aVoid) {
-      try {
-        return Optional.of(GroupManager.updateGroup(activity, groupId, members, avatar, name));
-      } catch (InvalidNumberException e) {
-        return Optional.absent();
-      }
-    }
-
-    @Override
-    protected void onPostExecute(Optional<GroupActionResult> result) {
-      if (result.isPresent() && result.get().getThreadId() > -1) {
-        if (!activity.isFinishing()) {
-          Intent intent = activity.getIntent();
-          intent.putExtra(GROUP_THREAD_EXTRA, result.get().getThreadId());
-          intent.putExtra(GROUP_ID_EXTRA, result.get().getGroupRecipient().requireGroupId().toString());
-          activity.setResult(RESULT_OK, intent);
-          activity.finish();
-        }
-      } else {
-        super.onPostExecute(result);
-        Toast.makeText(activity.getApplicationContext(),
-                       R.string.GroupCreateActivity_contacts_invalid_number, Toast.LENGTH_LONG).show();
-      }
-    }
-  }
-
-  private static class AddMembersTask extends AsyncTask<Recipient,Void,List<AddMembersTask.Result>> {
-    static class Result {
-      Optional<Recipient> recipient;
-      boolean             isPush;
-      String              reason;
-
-      public Result(@Nullable Recipient recipient, boolean isPush, @Nullable String reason) {
-        this.recipient = Optional.fromNullable(recipient);
-        this.isPush    = isPush;
-        this.reason    = reason;
-      }
-    }
-
-    private GroupCreateActivity activity;
-    private boolean             failIfNotPush;
-
-    public AddMembersTask(@NonNull GroupCreateActivity activity) {
-      this.activity      = activity;
-      this.failIfNotPush = activity.groupToUpdate.isPresent();
-    }
-
-    @Override
-    protected List<Result> doInBackground(Recipient... recipients) {
-      final List<Result> results = new LinkedList<>();
-
-      for (Recipient recipient : recipients) {
-        boolean isPush = isActiveInDirectory(recipient);
-
-        if (failIfNotPush && !isPush) {
-          results.add(new Result(null, false, activity.getString(R.string.GroupCreateActivity_cannot_add_non_push_to_existing_group,
-                                                                 recipient.toShortString(activity))));
-        } else if (TextUtils.equals(TextSecurePreferences.getLocalNumber(activity), recipient.getE164().or(""))) {
-          results.add(new Result(null, false, activity.getString(R.string.GroupCreateActivity_youre_already_in_the_group)));
-        } else {
-          results.add(new Result(recipient, isPush, null));
-        }
-      }
-      return results;
-    }
-
-    @Override
-    protected void onPostExecute(List<Result> results) {
-      if (activity.isFinishing()) return;
-
-      for (Result result : results) {
-        if (result.recipient.isPresent()) {
-          activity.getAdapter().add(result.recipient.get(), result.isPush);
-        } else {
-          Toast.makeText(activity, result.reason, Toast.LENGTH_SHORT).show();
-        }
-      }
-      activity.updateViewState();
-    }
-  }
-
-  private static class FillExistingGroupInfoAsyncTask extends ProgressDialogAsyncTask<GroupId, Void, Optional<GroupData>> {
-    private GroupCreateActivity activity;
-
-    public FillExistingGroupInfoAsyncTask(GroupCreateActivity activity) {
-      super(activity,
-            R.string.GroupCreateActivity_loading_group_details,
-            R.string.please_wait);
-      this.activity = activity;
-    }
-
-    @Override
-    protected Optional<GroupData> doInBackground(GroupId... groupIds) {
-      final GroupDatabase         db               = DatabaseFactory.getGroupDatabase(activity);
-      final List<Recipient>       recipients       = db.getGroupMembers(groupIds[0], GroupDatabase.MemberSet.FULL_MEMBERS_EXCLUDING_SELF);
-      final Optional<GroupRecord> group            = db.getGroup(groupIds[0]);
-      final Set<Recipient>        existingContacts = new HashSet<>(recipients.size());
-      existingContacts.addAll(recipients);
-
-      if (group.isPresent()) {
-        Bitmap avatar = null;
-        try {
-          avatar = BitmapFactory.decodeStream(AvatarHelper.getAvatar(getContext(), group.get().getRecipientId()));
-        } catch (IOException e) {
-          Log.w(TAG, "Failed to read avatar.");
-        }
-        return Optional.of(new GroupData(groupIds[0],
-                                         existingContacts,
-                                         avatar,
-                                         BitmapUtil.toByteArray(avatar),
-                                         group.get().getTitle()));
-      } else {
-        return Optional.absent();
-      }
-    }
-
-    @Override
-    protected void onPostExecute(Optional<GroupData> group) {
-      super.onPostExecute(group);
-
-      if (group.isPresent() && !activity.isFinishing()) {
-        activity.groupToUpdate = group;
-
-        activity.groupName.setText(group.get().name);
-        if (group.get().avatarBmp != null) {
-          activity.setAvatar(group.get().avatarBytes, group.get().avatarBmp);
-        }
-        SelectedRecipientsAdapter adapter = new SelectedRecipientsAdapter(activity, group.get().recipients);
-        adapter.setOnRecipientDeletedListener(activity);
-        activity.lv.setAdapter(adapter);
-        activity.updateViewState();
-      }
-    }
-  }
-
-  private <T> void setAvatar(T model, Bitmap bitmap) {
-    avatarBmp = bitmap;
-    GlideApp.with(this)
-            .load(model)
-            .circleCrop()
-            .skipMemoryCache(true)
-            .diskCacheStrategy(DiskCacheStrategy.NONE)
-            .into(avatar);
-  }
-
-  private static class GroupData {
-    GroupId        id;
-    Set<Recipient> recipients;
-    Bitmap         avatarBmp;
-    byte[]         avatarBytes;
-    String         name;
-
-    GroupData(GroupId id, Set<Recipient> recipients, Bitmap avatarBmp, byte[] avatarBytes, String name) {
-      this.id          = id;
-      this.recipients  = recipients;
-      this.avatarBmp   = avatarBmp;
-      this.avatarBytes = avatarBytes;
-      this.name        = name;
-    }
-  }
-}

app/src/main/java/org/thoughtcrime/securesms/GroupMembersDialog.java

@@ -1,82 +1,57 @@
 package org.thoughtcrime.securesms;
 
-import android.content.Context;
-import android.content.Intent;
-
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
-import androidx.lifecycle.Lifecycle;
+import androidx.fragment.app.FragmentActivity;
+import androidx.lifecycle.LiveData;
 
-import org.thoughtcrime.securesms.database.DatabaseFactory;
-import org.thoughtcrime.securesms.database.GroupDatabase;
+import org.thoughtcrime.securesms.groups.LiveGroup;
 import org.thoughtcrime.securesms.groups.ui.GroupMemberEntry;
 import org.thoughtcrime.securesms.groups.ui.GroupMemberListView;
 import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.recipients.RecipientExporter;
-import org.thoughtcrime.securesms.util.concurrent.SimpleTask;
+import org.thoughtcrime.securesms.recipients.ui.bottomsheet.RecipientBottomSheetDialogFragment;
 
-import java.util.ArrayList;
+import java.util.List;
 
 public final class GroupMembersDialog {
 
-  private final Context   context;
-  private final Recipient groupRecipient;
-  private final Lifecycle lifecycle;
+  private final FragmentActivity fragmentActivity;
+  private final Recipient        groupRecipient;
 
-  public GroupMembersDialog(@NonNull Context context,
-                            @NonNull Recipient groupRecipient,
-                            @NonNull Lifecycle lifecycle)
+  public GroupMembersDialog(@NonNull FragmentActivity activity,
+                            @NonNull Recipient groupRecipient)
   {
-    this.context        = context;
-    this.groupRecipient = groupRecipient;
-    this.lifecycle      = lifecycle;
+    this.fragmentActivity = activity;
+    this.groupRecipient   = groupRecipient;
   }
 
   public void display() {
-    SimpleTask.run(
-      lifecycle,
-      () -> DatabaseFactory.getGroupDatabase(context).getGroupMembers(groupRecipient.requireGroupId(), GroupDatabase.MemberSet.FULL_MEMBERS_INCLUDING_SELF),
-      members -> {
-        AlertDialog dialog = new AlertDialog.Builder(context)
-                                            .setTitle(R.string.ConversationActivity_group_members)
-                                            .setIconAttribute(R.attr.group_members_dialog_icon)
-                                            .setCancelable(true)
-                                            .setView(R.layout.dialog_group_members)
-                                            .setPositiveButton(android.R.string.ok, null)
-                                            .show();
+    AlertDialog dialog = new AlertDialog.Builder(fragmentActivity)
+                                        .setTitle(R.string.ConversationActivity_group_members)
+                                        .setIcon(R.drawable.ic_group_24)
+                                        .setCancelable(true)
+                                        .setView(R.layout.dialog_group_members)
+                                        .setPositiveButton(android.R.string.ok, null)
+                                        .show();
 
-        GroupMemberListView memberListView = dialog.findViewById(R.id.list_members);
+    GroupMemberListView memberListView = dialog.findViewById(R.id.list_members);
 
-        ArrayList<GroupMemberEntry.FullMember> pendingMembers = new ArrayList<>(members.size());
-        for (Recipient member : members) {
-          GroupMemberEntry.FullMember entry = new GroupMemberEntry.FullMember(member);
+    LiveGroup                                   liveGroup   = new LiveGroup(groupRecipient.requireGroupId());
+    LiveData<List<GroupMemberEntry.FullMember>> fullMembers = liveGroup.getFullMembers();
 
-          entry.setOnClick(() -> {
-            dialog.dismiss();
-            contactClick(member);
-          });
+    //noinspection ConstantConditions
+    fullMembers.observe(fragmentActivity, memberListView::setMembers);
 
-          if (member.isLocalNumber()) {
-            pendingMembers.add(0, entry);
-          } else {
-            pendingMembers.add(entry);
-          }
-        }
+    dialog.setOnDismissListener(d -> fullMembers.removeObservers(fragmentActivity));
 
-        //noinspection ConstantConditions
-        memberListView.setMembers(pendingMembers);
-      }
-    );
+    memberListView.setRecipientClickListener(recipient -> {
+      dialog.dismiss();
+      contactClick(recipient);
+    });
   }
 
   private void contactClick(@NonNull Recipient recipient) {
-    if (recipient.getContactUri() != null) {
-      Intent intent = new Intent(context, RecipientPreferenceActivity.class);
-      intent.putExtra(RecipientPreferenceActivity.RECIPIENT_ID, recipient.getId());
-
-      context.startActivity(intent);
-    } else {
-      context.startActivity(RecipientExporter.export(recipient).asAddContactIntent());
-    }
+    RecipientBottomSheetDialogFragment.create(recipient.getId(), groupRecipient.requireGroupId())
+                                      .show(fragmentActivity.getSupportFragmentManager(), "BOTTOM");
   }
 }

app/src/main/java/org/thoughtcrime/securesms/InviteActivity.java

@@ -22,13 +22,12 @@ import androidx.appcompat.widget.Toolbar;
 import androidx.core.content.ContextCompat;
 import androidx.interpolator.view.animation.FastOutSlowInInterpolator;
 
-import com.annimon.stream.Stream;
-
 import org.thoughtcrime.securesms.components.ContactFilterToolbar;
 import org.thoughtcrime.securesms.components.ContactFilterToolbar.OnFilterChangedListener;
 import org.thoughtcrime.securesms.contacts.ContactsCursorLoader.DisplayMode;
 import org.thoughtcrime.securesms.contacts.SelectedContact;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
+import org.thoughtcrime.securesms.groups.SelectionLimits;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.sms.MessageSender;
@@ -44,7 +43,7 @@ import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.util.concurrent.ExecutionException;
 
-public class InviteActivity extends PassphraseRequiredActionBarActivity implements ContactSelectionListFragment.OnContactSelectedListener {
+public class InviteActivity extends PassphraseRequiredActivity implements ContactSelectionListFragment.OnContactSelectedListener {
 
   private ContactSelectionListFragment contactsFragment;
   private EditText                     inviteText;
@@ -64,7 +63,8 @@ public class InviteActivity extends PassphraseRequiredActionBarActivity implemen
   @Override
   protected void onCreate(Bundle savedInstanceState, boolean ready) {
     getIntent().putExtra(ContactSelectionListFragment.DISPLAY_MODE, DisplayMode.FLAG_SMS);
-    getIntent().putExtra(ContactSelectionListFragment.MULTI_SELECT, true);
+    getIntent().putExtra(ContactSelectionListFragment.SELECTION_LIMITS, SelectionLimits.NO_LIMITS);
+    getIntent().putExtra(ContactSelectionListFragment.HIDE_COUNT, true);
     getIntent().putExtra(ContactSelectionListFragment.REFRESHABLE, false);
 
     setContentView(R.layout.invite_activity);
@@ -104,7 +104,7 @@ public class InviteActivity extends PassphraseRequiredActionBarActivity implemen
     contactsFragment  = (ContactSelectionListFragment)getSupportFragmentManager().findFragmentById(R.id.contact_selection_list_fragment);
 
     inviteText.setText(getString(R.string.InviteActivity_lets_switch_to_signal, getString(R.string.install_url)));
-    updateSmsButtonText();
+    updateSmsButtonText(contactsFragment.getSelectedContacts().size());
 
     contactsFragment.setOnContactSelectedListener(this);
     shareButton.setOnClickListener(new ShareClickListener());
@@ -122,27 +122,28 @@ public class InviteActivity extends PassphraseRequiredActionBarActivity implemen
   }
 
   @Override
-  public void onContactSelected(Optional<RecipientId> recipientId, String number) {
-    updateSmsButtonText();
+  public boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number) {
+    updateSmsButtonText(contactsFragment.getSelectedContacts().size() + 1);
+    return true;
   }
 
   @Override
   public void onContactDeselected(Optional<RecipientId> recipientId, String number) {
-    updateSmsButtonText();
+    updateSmsButtonText(contactsFragment.getSelectedContacts().size());
   }
 
   private void sendSmsInvites() {
     new SendSmsInvitesAsyncTask(this, inviteText.getText().toString())
         .executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
                            contactsFragment.getSelectedContacts()
-                                           .toArray(new SelectedContact[contactsFragment.getSelectedContacts().size()]));
+                                           .toArray(new SelectedContact[0]));
   }
 
-  private void updateSmsButtonText() {
+  private void updateSmsButtonText(int count) {
     smsSendButton.setText(getResources().getQuantityString(R.plurals.InviteActivity_send_sms_to_friends,
-                                                           contactsFragment.getSelectedContacts().size(),
-                                                           contactsFragment.getSelectedContacts().size()));
-    smsSendButton.setEnabled(!contactsFragment.getSelectedContacts().isEmpty());
+                                                           count,
+                                                           count));
+    smsSendButton.setEnabled(count > 0);
   }
 
   @Override public void onBackPressed() {
@@ -156,17 +157,17 @@ public class InviteActivity extends PassphraseRequiredActionBarActivity implemen
   private void cancelSmsSelection() {
     setPrimaryColorsToolbarNormal();
     contactsFragment.reset();
-    updateSmsButtonText();
+    updateSmsButtonText(contactsFragment.getSelectedContacts().size());
     ViewUtil.animateOut(smsSendFrame, slideOutAnimation, View.GONE);
   }
 
   private void setPrimaryColorsToolbarNormal() {
     primaryToolbar.setBackgroundColor(0);
     primaryToolbar.getNavigationIcon().setColorFilter(null);
-    primaryToolbar.setTitleTextColor(ThemeUtil.getThemedColor(this, R.attr.title_text_color_primary));
+    primaryToolbar.setTitleTextColor(ContextCompat.getColor(this, R.color.signal_text_primary));
 
     if (Build.VERSION.SDK_INT >= 23) {
-      getWindow().setStatusBarColor(ThemeUtil.getThemedColor(this, android.R.attr.statusBarColor));
+      WindowUtil.setStatusBarColor(getWindow(), ThemeUtil.getThemedColor(this, android.R.attr.statusBarColor));
       getWindow().setNavigationBarColor(ThemeUtil.getThemedColor(this, android.R.attr.navigationBarColor));
       WindowUtil.setLightStatusBarFromTheme(this);
     }
@@ -176,11 +177,11 @@ public class InviteActivity extends PassphraseRequiredActionBarActivity implemen
 
   private void setPrimaryColorsToolbarForSms() {
     primaryToolbar.setBackgroundColor(ContextCompat.getColor(this, R.color.core_ultramarine));
-    primaryToolbar.getNavigationIcon().setColorFilter(ThemeUtil.getThemedColor(this, R.attr.conversation_subtitle_color), PorterDuff.Mode.SRC_IN);
-    primaryToolbar.setTitleTextColor(ThemeUtil.getThemedColor(this, R.attr.conversation_title_color));
+    primaryToolbar.getNavigationIcon().setColorFilter(ContextCompat.getColor(this, R.color.signal_text_toolbar_subtitle), PorterDuff.Mode.SRC_IN);
+    primaryToolbar.setTitleTextColor(ContextCompat.getColor(this, R.color.signal_text_toolbar_title));
 
     if (Build.VERSION.SDK_INT >= 23) {
-      getWindow().setStatusBarColor(ContextCompat.getColor(this, R.color.core_ultramarine));
+      WindowUtil.setStatusBarColor(getWindow(), ContextCompat.getColor(this, R.color.core_ultramarine));
       WindowUtil.clearLightStatusBar(getWindow());
     }
 

app/src/main/java/org/thoughtcrime/securesms/KbsEnclave.java

@@ -0,0 +1,49 @@
+package org.thoughtcrime.securesms;
+
+import androidx.annotation.NonNull;
+
+import java.util.Objects;
+
+/**
+ * Used in our {@link BuildConfig} to tie together the various attributes of a KBS instance. This
+ * is sitting in the root directory so it can be accessed by the build config.
+ */
+public final class KbsEnclave {
+
+  private final String enclaveName;
+  private final String serviceId;
+  private final String mrEnclave;
+
+  public KbsEnclave(@NonNull String enclaveName, @NonNull String serviceId, @NonNull String mrEnclave) {
+    this.enclaveName = enclaveName;
+    this.serviceId   = serviceId;
+    this.mrEnclave   = mrEnclave;
+  }
+
+  public @NonNull String getMrEnclave() {
+    return mrEnclave;
+  }
+
+  public @NonNull String getEnclaveName() {
+    return enclaveName;
+  }
+
+  public @NonNull String getServiceId() {
+    return serviceId;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) return true;
+    if (o == null || getClass() != o.getClass()) return false;
+    KbsEnclave enclave = (KbsEnclave) o;
+    return enclaveName.equals(enclave.enclaveName) &&
+           serviceId.equals(enclave.serviceId)     &&
+           mrEnclave.equals(enclave.mrEnclave);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(enclaveName, serviceId, mrEnclave);
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/LoggingFragment.java

@@ -0,0 +1,45 @@
+package org.thoughtcrime.securesms;
+
+import android.os.Bundle;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import org.thoughtcrime.securesms.logging.Log;
+
+/**
+ * Simply logs out lifecycle events.
+ */
+public abstract class LoggingFragment extends Fragment {
+
+  private static final String TAG = Log.tag(LoggingFragment.class);
+
+  @Override
+  public void onCreate(@Nullable Bundle savedInstanceState) {
+    logEvent("onCreate()");
+    super.onCreate(savedInstanceState);
+  }
+
+  @Override
+  public void onStart() {
+    logEvent("onStart()");
+    super.onStart();
+  }
+
+  @Override
+  public void onStop() {
+    logEvent("onStop()");
+    super.onStop();
+  }
+
+  @Override
+  public void onDestroy() {
+    logEvent("onDestroy()");
+    super.onDestroy();
+  }
+
+  private void logEvent(@NonNull String event) {
+    Log.d(TAG, "[" + Log.tag(getClass()) + "] " + event);
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/MainActivity.java

@@ -1,13 +1,22 @@
 package org.thoughtcrime.securesms;
 
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
+import org.thoughtcrime.securesms.tracing.Trace;
+import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.thoughtcrime.securesms.util.DynamicNoActionBarTheme;
 import org.thoughtcrime.securesms.util.DynamicTheme;
 
-public class MainActivity extends PassphraseRequiredActionBarActivity {
+@Trace
+public class MainActivity extends PassphraseRequiredActivity {
+
+  public static final int RESULT_CONFIG_CHANGED = Activity.RESULT_FIRST_USER + 901;
 
   private final DynamicTheme  dynamicTheme = new DynamicNoActionBarTheme();
   private final MainNavigator navigator    = new MainNavigator(this);
@@ -18,6 +27,14 @@ public class MainActivity extends PassphraseRequiredActionBarActivity {
     setContentView(R.layout.main_activity);
 
     navigator.onCreate(savedInstanceState);
+
+    handleGroupLinkInIntent(getIntent());
+  }
+
+  @Override
+  protected void onNewIntent(Intent intent) {
+    super.onNewIntent(intent);
+    handleGroupLinkInIntent(intent);
   }
 
   @Override
@@ -39,7 +56,22 @@ public class MainActivity extends PassphraseRequiredActionBarActivity {
     }
   }
 
+  @Override
+  protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
+    if (requestCode == MainNavigator.REQUEST_CONFIG_CHANGES && resultCode == RESULT_CONFIG_CHANGED) {
+      recreate();
+    }
+  }
+
   public @NonNull MainNavigator getNavigator() {
     return navigator;
   }
+
+  private void handleGroupLinkInIntent(Intent intent) {
+    Uri data = intent.getData();
+    if (data != null) {
+      CommunicationActions.handlePotentialGroupLinkUrl(this, data.toString());
+    }
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/MainFragment.java

@@ -3,9 +3,8 @@ package org.thoughtcrime.securesms;
 import android.content.Context;
 
 import androidx.annotation.NonNull;
-import androidx.fragment.app.Fragment;
 
-public class MainFragment extends Fragment {
+public class MainFragment extends LoggingFragment {
 
   @Override
   public void onAttach(@NonNull Context context) {

app/src/main/java/org/thoughtcrime/securesms/MainNavigator.java

@@ -12,11 +12,14 @@ import androidx.fragment.app.FragmentManager;
 import org.thoughtcrime.securesms.conversation.ConversationActivity;
 import org.thoughtcrime.securesms.conversationlist.ConversationListArchiveFragment;
 import org.thoughtcrime.securesms.conversationlist.ConversationListFragment;
+import org.thoughtcrime.securesms.groups.ui.creategroup.CreateGroupActivity;
 import org.thoughtcrime.securesms.insights.InsightsLauncher;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 
 public class MainNavigator {
 
+  public static final int REQUEST_CONFIG_CHANGES = 901;
+
   private final MainActivity activity;
 
   public MainNavigator(@NonNull MainActivity activity) {
@@ -55,8 +58,8 @@ public class MainNavigator {
     return false;
   }
 
-  public void goToConversation(@NonNull RecipientId recipientId, long threadId, int distributionType, long lastSeen, int startingPosition) {
-    Intent intent = ConversationActivity.buildIntent(activity, recipientId, threadId, distributionType, lastSeen, startingPosition);
+  public void goToConversation(@NonNull RecipientId recipientId, long threadId, int distributionType, int startingPosition) {
+    Intent intent = ConversationActivity.buildIntent(activity, recipientId, threadId, distributionType, startingPosition);
 
     activity.startActivity(intent);
     activity.overridePendingTransition(R.anim.slide_from_end, R.anim.fade_scale_out);
@@ -64,10 +67,9 @@ public class MainNavigator {
 
   public void goToAppSettings() {
     Intent intent = new Intent(activity, ApplicationPreferencesActivity.class);
-    activity.startActivity(intent);
+    activity.startActivityForResult(intent, REQUEST_CONFIG_CHANGES);
   }
 
-
   public void goToArchiveList() {
     getFragmentManager().beginTransaction()
                         .setCustomAnimations(R.anim.slide_from_end, R.anim.slide_to_start, R.anim.slide_from_start, R.anim.slide_to_end)
@@ -77,8 +79,7 @@ public class MainNavigator {
   }
 
   public void goToGroupCreation() {
-    Intent intent = new Intent(activity, GroupCreateActivity.class);
-    activity.startActivity(intent);
+    activity.startActivity(CreateGroupActivity.newIntent(activity));
   }
 
   public void goToInvite() {

app/src/main/java/org/thoughtcrime/securesms/MediaPreviewActivity.java

@@ -18,25 +18,29 @@ package org.thoughtcrime.securesms;
 
 import android.Manifest;
 import android.annotation.SuppressLint;
+import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
+import android.database.ContentObserver;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.Handler;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.Window;
-import android.view.WindowManager;
 import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.core.app.ShareCompat;
 import androidx.core.util.Pair;
 import androidx.core.view.ViewCompat;
 import androidx.fragment.app.Fragment;
@@ -61,23 +65,27 @@ import org.thoughtcrime.securesms.mediapreview.MediaPreviewFragment;
 import org.thoughtcrime.securesms.mediapreview.MediaPreviewViewModel;
 import org.thoughtcrime.securesms.mediapreview.MediaRailAdapter;
 import org.thoughtcrime.securesms.mms.GlideApp;
+import org.thoughtcrime.securesms.mms.PartAuthority;
 import org.thoughtcrime.securesms.permissions.Permissions;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.sharing.ShareActivity;
 import org.thoughtcrime.securesms.util.AttachmentUtil;
 import org.thoughtcrime.securesms.util.DateUtils;
+import org.thoughtcrime.securesms.util.FullscreenHelper;
 import org.thoughtcrime.securesms.util.SaveAttachmentTask;
 import org.thoughtcrime.securesms.util.SaveAttachmentTask.Attachment;
+import org.thoughtcrime.securesms.util.StorageUtil;
 
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * Activity for displaying media attachments in-app
  */
-public final class MediaPreviewActivity extends PassphraseRequiredActionBarActivity
+public final class MediaPreviewActivity extends PassphraseRequiredActivity
   implements LoaderManager.LoaderCallbacks<Pair<Cursor, Integer>>,
              MediaRailAdapter.RailItemListener,
              MediaPreviewFragment.Events
@@ -116,21 +124,31 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
   private boolean               cameFromAllMedia;
   private boolean               showThread;
   private MediaDatabase.Sorting sorting;
+  private FullscreenHelper      fullscreenHelper;
+
+  private @Nullable Cursor cursor = null;
 
   public static @NonNull Intent intentFromMediaRecord(@NonNull Context context,
                                                       @NonNull MediaRecord mediaRecord,
                                                       boolean leftIsRecent)
   {
+    DatabaseAttachment attachment = Objects.requireNonNull(mediaRecord.getAttachment());
     Intent intent = new Intent(context, MediaPreviewActivity.class);
     intent.putExtra(MediaPreviewActivity.THREAD_ID_EXTRA, mediaRecord.getThreadId());
     intent.putExtra(MediaPreviewActivity.DATE_EXTRA, mediaRecord.getDate());
-    intent.putExtra(MediaPreviewActivity.SIZE_EXTRA, mediaRecord.getAttachment().getSize());
-    intent.putExtra(MediaPreviewActivity.CAPTION_EXTRA, mediaRecord.getAttachment().getCaption());
+    intent.putExtra(MediaPreviewActivity.SIZE_EXTRA, attachment.getSize());
+    intent.putExtra(MediaPreviewActivity.CAPTION_EXTRA, attachment.getCaption());
     intent.putExtra(MediaPreviewActivity.LEFT_IS_RECENT_EXTRA, leftIsRecent);
-    intent.setDataAndType(mediaRecord.getAttachment().getDataUri(), mediaRecord.getContentType());
+    intent.setDataAndType(attachment.getUri(), mediaRecord.getContentType());
     return intent;
   }
 
+  @Override
+  protected void attachBaseContext(@NonNull Context newBase) {
+    getDelegate().setLocalNightMode(AppCompatDelegate.MODE_NIGHT_YES);
+    super.attachBaseContext(newBase);
+  }
+
   @SuppressWarnings("ConstantConditions")
   @Override
   protected void onCreate(Bundle bundle, boolean ready) {
@@ -141,10 +159,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
     viewModel = ViewModelProviders.of(this).get(MediaPreviewViewModel.class);
 
-    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
-                         WindowManager.LayoutParams.FLAG_FULLSCREEN);
-
-    showSystemUI();
+    fullscreenHelper = new FullscreenHelper(this);
 
     getSupportActionBar().setDisplayHomeAsUpEnabled(true);
 
@@ -181,7 +196,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
   private @NonNull String getTitleText(@NonNull MediaItem mediaItem) {
     String from;
     if      (mediaItem.outgoing)          from = getString(R.string.MediaPreviewActivity_you);
-    else if (mediaItem.recipient != null) from = mediaItem.recipient.toShortString(this);
+    else if (mediaItem.recipient != null) from = mediaItem.recipient.getDisplayName(this);
     else                                  from = "";
 
     if (showThread) {
@@ -190,10 +205,10 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
       if (threadRecipient != null) {
         if (mediaItem.outgoing || threadRecipient.isGroup()) {
-          if (threadRecipient.isLocalNumber()) {
+          if (threadRecipient.isSelf()) {
             from = getString(R.string.note_to_self);
           } else {
-            to = threadRecipient.toShortString(this);
+            to = threadRecipient.getDisplayName(this);
           }
         } else {
           to = getString(R.string.MediaPreviewActivity_you);
@@ -228,6 +243,15 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     restartItem = cleanupMedia();
   }
 
+  @Override
+  protected void onDestroy() {
+    if (cursor != null) {
+      cursor.close();
+      cursor = null;
+    }
+    super.onDestroy();
+  }
+
   @Override
   protected void onNewIntent(Intent intent) {
     super.onNewIntent(intent);
@@ -246,6 +270,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     albumRail        = findViewById(R.id.media_preview_album_rail);
     albumRailAdapter = new MediaRailAdapter(GlideApp.with(this), this, false);
 
+    albumRail.setItemAnimator(null); // Or can crash when set to INVISIBLE while animating by FullscreenHelper https://issuetracker.google.com/issues/148720682
     albumRail.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false));
     albumRail.setAdapter(albumRailAdapter);
 
@@ -258,9 +283,9 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
     anchorMarginsToBottomInsets(detailsContainer);
 
-    anchorMarginsToTopInsets(toolbarLayout);
+    fullscreenHelper.configureToolbarSpacer(findViewById(R.id.toolbar_cutout_spacer));
 
-    showAndHideWithSystemUI(getWindow(), detailsContainer, toolbarLayout);
+    fullscreenHelper.showAndHideWithSystemUI(getWindow(), detailsContainer, toolbarLayout);
   }
 
   private void initializeResources() {
@@ -344,6 +369,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
     mediaPager.removeAllViews();
     mediaPager.setAdapter(null);
+    viewModel.setCursor(this, null, leftIsRecent);
 
     return restartItem;
   }
@@ -363,6 +389,27 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     }
   }
 
+  private void share() {
+    MediaItem mediaItem = getCurrentMediaItem();
+
+    if (mediaItem != null) {
+      Uri    publicUri   = PartAuthority.getAttachmentPublicUri(mediaItem.uri);
+      String mimeType    = Intent.normalizeMimeType(mediaItem.type);
+      Intent shareIntent = ShareCompat.IntentBuilder.from(this)
+                                                    .setStream(publicUri)
+                                                    .setType(mimeType)
+                                                    .createChooserIntent()
+                                                    .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+      try {
+        startActivity(shareIntent);
+      } catch (ActivityNotFoundException e) {
+        Log.w(TAG, "No activity existed to share the media.", e);
+        Toast.makeText(this, R.string.MediaPreviewActivity_cant_find_an_app_able_to_share_this_media, Toast.LENGTH_LONG).show();
+      }
+    }
+  }
+
   @SuppressWarnings("CodeBlock2Expr")
   @SuppressLint("InlinedApi")
   private void saveToDisk() {
@@ -370,21 +417,30 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
     if (mediaItem != null) {
       SaveAttachmentTask.showWarningDialog(this, (dialogInterface, i) -> {
+        if (StorageUtil.canWriteToMediaStore()) {
+          performSavetoDisk(mediaItem);
+          return;
+        }
+
         Permissions.with(this)
-                   .request(Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE)
+                   .request(Manifest.permission.WRITE_EXTERNAL_STORAGE)
                    .ifNecessary()
                    .withPermanentDenialDialog(getString(R.string.MediaPreviewActivity_signal_needs_the_storage_permission_in_order_to_write_to_external_storage_but_it_has_been_permanently_denied))
                    .onAnyDenied(() -> Toast.makeText(this, R.string.MediaPreviewActivity_unable_to_write_to_external_storage_without_permission, Toast.LENGTH_LONG).show())
                    .onAllGranted(() -> {
-                     SaveAttachmentTask saveTask = new SaveAttachmentTask(MediaPreviewActivity.this);
-                     long saveDate = (mediaItem.date > 0) ? mediaItem.date : System.currentTimeMillis();
-                     saveTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, new Attachment(mediaItem.uri, mediaItem.type, saveDate, null));
+                     performSavetoDisk(mediaItem);
                    })
                    .execute();
       });
     }
   }
 
+  private void performSavetoDisk(@NonNull MediaItem mediaItem) {
+    SaveAttachmentTask saveTask = new SaveAttachmentTask(MediaPreviewActivity.this);
+    long               saveDate = (mediaItem.date > 0) ? mediaItem.date : System.currentTimeMillis();
+    saveTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, new Attachment(mediaItem.uri, mediaItem.type, saveDate, null));
+  }
+
   @SuppressLint("StaticFieldLeak")
   private void deleteMedia() {
     MediaItem mediaItem = getCurrentMediaItem();
@@ -393,7 +449,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     }
 
     AlertDialog.Builder builder = new AlertDialog.Builder(this);
-    builder.setIconAttribute(R.attr.dialog_alert_icon);
+    builder.setIcon(R.drawable.ic_warning);
     builder.setTitle(R.string.MediaPreviewActivity_media_delete_confirmation_title);
     builder.setMessage(R.string.MediaPreviewActivity_media_delete_confirmation_message);
     builder.setCancelable(true);
@@ -415,36 +471,45 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
   }
 
   @Override
-  public boolean onPrepareOptionsMenu(Menu menu) {
-    super.onPrepareOptionsMenu(menu);
-
+  public boolean onCreateOptionsMenu(Menu menu) {
     menu.clear();
     MenuInflater inflater = this.getMenuInflater();
     inflater.inflate(R.menu.media_preview, menu);
 
+    super.onCreateOptionsMenu(menu);
+    return true;
+  }
+
+  @Override
+  public boolean onPrepareOptionsMenu(Menu menu) {
     if (!isMediaInDb()) {
       menu.findItem(R.id.media_preview__overview).setVisible(false);
       menu.findItem(R.id.delete).setVisible(false);
     }
 
+    // Restricted to API26 because of MemoryFileUtil not supporting lower API levels well
+    menu.findItem(R.id.media_preview__share).setVisible(Build.VERSION.SDK_INT >= 26);
+
     if (cameFromAllMedia) {
       menu.findItem(R.id.media_preview__overview).setVisible(false);
     }
 
+    super.onPrepareOptionsMenu(menu);
     return true;
   }
 
   @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
+  public boolean onOptionsItemSelected(@NonNull MenuItem item) {
     super.onOptionsItemSelected(item);
 
-    switch (item.getItemId()) {
-      case R.id.media_preview__overview: showOverview(); return true;
-      case R.id.media_preview__forward:  forward();      return true;
-      case R.id.save:                    saveToDisk();   return true;
-      case R.id.delete:                  deleteMedia();  return true;
-      case android.R.id.home:            finish();       return true;
-    }
+    int itemId = item.getItemId();
+
+    if (itemId == R.id.media_preview__overview) { showOverview(); return true; }
+    if (itemId == R.id.media_preview__forward)  { forward();      return true; }
+    if (itemId == R.id.media_preview__share)    { share();        return true; }
+    if (itemId == R.id.save)                    { saveToDisk();   return true; }
+    if (itemId == R.id.delete)                  { deleteMedia();  return true; }
+    if (itemId == android.R.id.home)            { finish();       return true; }
 
     return false;
   }
@@ -475,19 +540,46 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
   @Override
   public void onLoadFinished(@NonNull Loader<Pair<Cursor, Integer>> loader, @Nullable Pair<Cursor, Integer> data) {
     if (data != null) {
-      @SuppressWarnings("ConstantConditions")
-      CursorPagerAdapter adapter = new CursorPagerAdapter(getSupportFragmentManager(),this, data.first, data.second, leftIsRecent);
+      if (data.first == cursor) {
+        return;
+      }
+
+      if (cursor != null) {
+        cursor.close();
+      }
+      cursor = Objects.requireNonNull(data.first);
+
+      int mediaPosition = Objects.requireNonNull(data.second);
+
+      CursorPagerAdapter adapter = new CursorPagerAdapter(getSupportFragmentManager(),this, cursor, mediaPosition, leftIsRecent);
       mediaPager.setAdapter(adapter);
       adapter.setActive(true);
 
-      viewModel.setCursor(this, data.first, leftIsRecent);
+      viewModel.setCursor(this, cursor, leftIsRecent);
 
-      int item = restartItem >= 0 ? restartItem : data.second;
+      int item = restartItem >= 0 ? restartItem : mediaPosition;
       mediaPager.setCurrentItem(item);
 
       if (item == 0) {
         viewPagerListener.onPageSelected(0);
       }
+
+      cursor.registerContentObserver(new ContentObserver(new Handler(getMainLooper())) {
+        @Override
+        public void onChange(boolean selfChange) {
+          onMediaChange();
+        }
+      });
+    } else {
+      mediaNotAvailable();
+    }
+  }
+
+  private void onMediaChange() {
+    MediaItemAdapter adapter = (MediaItemAdapter) mediaPager.getAdapter();
+
+    if (adapter != null) {
+      adapter.checkMedia(mediaPager.getCurrentItem());
     }
   }
 
@@ -498,34 +590,14 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
 
   @Override
   public boolean singleTapOnMedia() {
-    toggleUiVisibility();
+    fullscreenHelper.toggleUiVisibility();
     return true;
   }
 
-  private void toggleUiVisibility() {
-    int systemUiVisibility = getWindow().getDecorView().getSystemUiVisibility();
-    if ((systemUiVisibility & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0) {
-      showSystemUI();
-    } else {
-      hideSystemUI();
-    }
-  }
-
-  private void hideSystemUI() {
-    getWindow().getDecorView().setSystemUiVisibility(
-        View.SYSTEM_UI_FLAG_IMMERSIVE              |
-        View.SYSTEM_UI_FLAG_LAYOUT_STABLE          |
-        View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
-        View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN      |
-        View.SYSTEM_UI_FLAG_HIDE_NAVIGATION        |
-        View.SYSTEM_UI_FLAG_FULLSCREEN              );
-  }
-
-  private void showSystemUI() {
-    getWindow().getDecorView().setSystemUiVisibility(
-        View.SYSTEM_UI_FLAG_LAYOUT_STABLE          |
-        View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
-        View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN       );
+  @Override
+  public void mediaNotAvailable() {
+    Toast.makeText(this, R.string.MediaPreviewActivity_media_no_longer_available, Toast.LENGTH_LONG).show();
+    finish();
   }
 
   private class ViewPagerListener extends ExtendedOnPageChangedListener {
@@ -621,6 +693,11 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     public boolean hasFragmentFor(int position) {
       return mediaPreviewFragment != null;
     }
+
+    @Override
+    public void checkMedia(int currentItem) {
+
+    }
   }
 
   private static void anchorMarginsToBottomInsets(@NonNull View viewToAnchor) {
@@ -638,33 +715,6 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     });
   }
 
-  private static void anchorMarginsToTopInsets(@NonNull View viewToAnchor) {
-    ViewCompat.setOnApplyWindowInsetsListener(viewToAnchor, (view, insets) -> {
-      ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
-
-      layoutParams.setMargins(insets.getSystemWindowInsetLeft(),
-                              insets.getSystemWindowInsetTop(),
-                              insets.getSystemWindowInsetRight(),
-                              layoutParams.bottomMargin);
-
-      view.setLayoutParams(layoutParams);
-
-      return insets;
-    });
-  }
-
-  private static void showAndHideWithSystemUI(@NonNull Window window, @NonNull View... views) {
-    window.getDecorView().setOnSystemUiVisibilityChangeListener(visibility -> {
-      boolean hide = (visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0;
-
-      for (View view : views) {
-        view.animate()
-            .alpha(hide ? 0 : 1)
-            .start();
-      }
-    });
-  }
-
   private static class CursorPagerAdapter extends FragmentStatePagerAdapter implements MediaItemAdapter {
 
     @SuppressLint("UseSparseArrays")
@@ -712,7 +762,7 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
       cursor.moveToPosition(cursorPosition);
 
       MediaDatabase.MediaRecord mediaRecord = MediaDatabase.MediaRecord.from(context, cursor);
-      DatabaseAttachment        attachment  = mediaRecord.getAttachment();
+      DatabaseAttachment        attachment  = Objects.requireNonNull(mediaRecord.getAttachment());
       MediaPreviewFragment      fragment    = MediaPreviewFragment.newInstance(attachment, autoPlay);
 
       mediaFragments.put(position, fragment);
@@ -734,16 +784,15 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     public MediaItem getMediaItemFor(int position) {
       cursor.moveToPosition(getCursorPosition(position));
 
-      MediaRecord mediaRecord       = MediaRecord.from(context, cursor);
-      RecipientId recipientId       = mediaRecord.getRecipientId();
-      RecipientId threadRecipientId = mediaRecord.getThreadRecipientId();
-
-      if (mediaRecord.getAttachment().getDataUri() == null) throw new AssertionError();
+      MediaRecord        mediaRecord       = MediaRecord.from(context, cursor);
+      DatabaseAttachment attachment        = Objects.requireNonNull(mediaRecord.getAttachment());
+      RecipientId        recipientId       = mediaRecord.getRecipientId();
+      RecipientId        threadRecipientId = mediaRecord.getThreadRecipientId();
 
       return new MediaItem(Recipient.live(recipientId).get(),
                            Recipient.live(threadRecipientId).get(),
-                           mediaRecord.getAttachment(),
-                           mediaRecord.getAttachment().getDataUri(),
+                           attachment,
+                           Objects.requireNonNull(attachment.getUri()),
                            mediaRecord.getContentType(),
                            mediaRecord.getDate(),
                            mediaRecord.isOutgoing());
@@ -767,6 +816,14 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
       return mediaFragments.containsKey(position);
     }
 
+    @Override
+    public void checkMedia(int position) {
+      MediaPreviewFragment fragment = mediaFragments.get(position);
+      if (fragment != null) {
+        fragment.checkMediaStillAvailable();
+      }
+    }
+
     private int getCursorPosition(int position) {
       if (leftIsRecent) return position;
       else              return cursor.getCount() - 1 - position;
@@ -805,5 +862,6 @@ public final class MediaPreviewActivity extends PassphraseRequiredActionBarActiv
     void pause(int position);
     @Nullable View getPlaybackControls(int position);
     boolean hasFragmentFor(int position);
+    void checkMedia(int currentItem);
   }
 }

app/src/main/java/org/thoughtcrime/securesms/MessageDetailsActivity.java

@@ -1,447 +0,0 @@
-/*
- * Copyright (C) 2015 Open Whisper Systems
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.thoughtcrime.securesms;
-
-import android.annotation.SuppressLint;
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.database.Cursor;
-import android.graphics.drawable.ColorDrawable;
-import android.os.AsyncTask;
-import android.os.Build;
-import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.loader.app.LoaderManager.LoaderCallbacks;
-import androidx.loader.content.Loader;
-
-import org.thoughtcrime.securesms.conversation.ConversationItem;
-import org.thoughtcrime.securesms.database.GroupDatabase;
-import org.thoughtcrime.securesms.logging.Log;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ListView;
-import android.widget.TextView;
-
-import org.thoughtcrime.securesms.MessageDetailsRecipientAdapter.RecipientDeliveryStatus;
-import org.thoughtcrime.securesms.color.MaterialColor;
-import org.thoughtcrime.securesms.database.DatabaseFactory;
-import org.thoughtcrime.securesms.database.GroupReceiptDatabase;
-import org.thoughtcrime.securesms.database.GroupReceiptDatabase.GroupReceiptInfo;
-import org.thoughtcrime.securesms.database.MmsDatabase;
-import org.thoughtcrime.securesms.database.MmsSmsDatabase;
-import org.thoughtcrime.securesms.database.SmsDatabase;
-import org.thoughtcrime.securesms.database.loaders.MessageDetailsLoader;
-import org.thoughtcrime.securesms.database.model.MessageRecord;
-import org.thoughtcrime.securesms.mms.GlideApp;
-import org.thoughtcrime.securesms.mms.GlideRequests;
-import org.thoughtcrime.securesms.notifications.MessageNotifier;
-import org.thoughtcrime.securesms.recipients.LiveRecipient;
-import org.thoughtcrime.securesms.recipients.Recipient;
-import org.thoughtcrime.securesms.sms.MessageSender;
-import org.thoughtcrime.securesms.util.DateUtils;
-import org.thoughtcrime.securesms.util.DynamicDarkActionBarTheme;
-import org.thoughtcrime.securesms.util.DynamicLanguage;
-import org.thoughtcrime.securesms.util.DynamicTheme;
-import org.thoughtcrime.securesms.util.ExpirationUtil;
-import org.thoughtcrime.securesms.util.Util;
-import org.thoughtcrime.securesms.util.concurrent.SignalExecutors;
-import org.whispersystems.libsignal.util.guava.Optional;
-
-import java.lang.ref.WeakReference;
-import java.sql.Date;
-import java.text.SimpleDateFormat;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Locale;
-
-/**
- * @author Jake McGinty
- */
-public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity implements LoaderCallbacks<Cursor> {
-  private final static String TAG = MessageDetailsActivity.class.getSimpleName();
-
-  public static final String MESSAGE_ID_EXTRA    = "message_id";
-  public static final String THREAD_ID_EXTRA     = "thread_id";
-  public static final String IS_PUSH_GROUP_EXTRA = "is_push_group";
-  public static final String TYPE_EXTRA          = "type";
-  public static final String RECIPIENT_EXTRA     = "recipient_id";
-
-  private GlideRequests    glideRequests;
-  private long             threadId;
-  private boolean          isPushGroup;
-  private ConversationItem conversationItem;
-  private ViewGroup        itemParent;
-  private View             metadataContainer;
-  private View             expiresContainer;
-  private TextView         errorText;
-  private View             resendButton;
-  private TextView         sentDate;
-  private TextView         receivedDate;
-  private TextView         expiresInText;
-  private View             receivedContainer;
-  private TextView         transport;
-  private TextView         toFrom;
-  private ListView         recipientsList;
-  private LayoutInflater   inflater;
-
-  private DynamicTheme     dynamicTheme    = new DynamicDarkActionBarTheme();
-  private DynamicLanguage  dynamicLanguage = new DynamicLanguage();
-
-  private boolean running;
-
-  @Override
-  protected void onPreCreate() {
-    dynamicTheme.onCreate(this);
-    dynamicLanguage.onCreate(this);
-  }
-
-  @Override
-  public void onCreate(Bundle bundle, boolean ready) {
-    setContentView(R.layout.message_details_activity);
-    running = true;
-
-    initializeResources();
-    initializeActionBar();
-    getSupportLoaderManager().initLoader(0, null, this);
-  }
-
-  @Override
-  protected void onResume() {
-    super.onResume();
-    dynamicTheme.onResume(this);
-    dynamicLanguage.onResume(this);
-
-    assert getSupportActionBar() != null;
-    getSupportActionBar().setTitle(R.string.AndroidManifest__message_details);
-
-    MessageNotifier.setVisibleThread(threadId);
-  }
-
-  @Override
-  protected void onPause() {
-    super.onPause();
-    MessageNotifier.setVisibleThread(-1L);
-  }
-
-  @Override
-  protected void onDestroy() {
-    super.onDestroy();
-    running = false;
-  }
-
-  private void initializeActionBar() {
-    assert getSupportActionBar() != null;
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-
-    LiveRecipient recipient = Recipient.live(getIntent().getParcelableExtra(RECIPIENT_EXTRA));
-    recipient.observe(this, r -> setActionBarColor(r.getColor()));
-
-    setActionBarColor(recipient.get().getColor());
-  }
-
-  private void setActionBarColor(MaterialColor color) {
-    assert getSupportActionBar() != null;
-    getSupportActionBar().setBackgroundDrawable(new ColorDrawable(color.toActionBarColor(this)));
-
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-      getWindow().setStatusBarColor(color.toStatusBarColor(this));
-    }
-  }
-
-  private void initializeResources() {
-    inflater       = LayoutInflater.from(this);
-    View header = inflater.inflate(R.layout.message_details_header, recipientsList, false);
-
-    threadId          = getIntent().getLongExtra(THREAD_ID_EXTRA, -1);
-    isPushGroup       = getIntent().getBooleanExtra(IS_PUSH_GROUP_EXTRA, false);
-    glideRequests     = GlideApp.with(this);
-    itemParent        = header.findViewById(R.id.item_container);
-    recipientsList    = findViewById(R.id.recipients_list);
-    metadataContainer = header.findViewById(R.id.metadata_container);
-    errorText         = header.findViewById(R.id.error_text);
-    resendButton      = header.findViewById(R.id.resend_button);
-    sentDate          = header.findViewById(R.id.sent_time);
-    receivedContainer = header.findViewById(R.id.received_container);
-    receivedDate      = header.findViewById(R.id.received_time);
-    transport         = header.findViewById(R.id.transport);
-    toFrom            = header.findViewById(R.id.tofrom);
-    expiresContainer  = header.findViewById(R.id.expires_container);
-    expiresInText     = header.findViewById(R.id.expires_in);
-    recipientsList.setHeaderDividersEnabled(false);
-    recipientsList.addHeaderView(header, null, false);
-  }
-
-  private void updateTransport(MessageRecord messageRecord) {
-    final String transportText;
-    if (messageRecord.isOutgoing() && messageRecord.isFailed()) {
-      transportText = "-";
-    } else if (messageRecord.isPending()) {
-      transportText = getString(R.string.ConversationFragment_pending);
-    } else if (messageRecord.isPush()) {
-      transportText = getString(R.string.ConversationFragment_push);
-    } else if (messageRecord.isMms()) {
-      transportText = getString(R.string.ConversationFragment_mms);
-    } else {
-      transportText = getString(R.string.ConversationFragment_sms);
-    }
-
-    transport.setText(transportText);
-  }
-
-  private void updateTime(MessageRecord messageRecord) {
-    sentDate.setOnLongClickListener(null);
-    receivedDate.setOnLongClickListener(null);
-
-    if (messageRecord.isPending() || messageRecord.isFailed()) {
-      sentDate.setText("-");
-      receivedContainer.setVisibility(View.GONE);
-    } else {
-      Locale           dateLocale    = dynamicLanguage.getCurrentLocale();
-      SimpleDateFormat dateFormatter = DateUtils.getDetailedDateFormatter(this, dateLocale);
-      sentDate.setText(dateFormatter.format(new Date(messageRecord.getDateSent())));
-      sentDate.setOnLongClickListener(v -> {
-        copyToClipboard(String.valueOf(messageRecord.getDateSent()));
-        return true;
-      });
-
-      if (messageRecord.getDateReceived() != messageRecord.getDateSent() && !messageRecord.isOutgoing()) {
-        receivedDate.setText(dateFormatter.format(new Date(messageRecord.getDateReceived())));
-        receivedDate.setOnLongClickListener(v -> {
-          copyToClipboard(String.valueOf(messageRecord.getDateReceived()));
-          return true;
-        });
-        receivedContainer.setVisibility(View.VISIBLE);
-      } else {
-        receivedContainer.setVisibility(View.GONE);
-      }
-    }
-  }
-
-  private void updateExpirationTime(final MessageRecord messageRecord) {
-    if (messageRecord.getExpiresIn() <= 0 || messageRecord.getExpireStarted() <= 0) {
-      expiresContainer.setVisibility(View.GONE);
-      return;
-    }
-
-    expiresContainer.setVisibility(View.VISIBLE);
-    Util.runOnMain(new Runnable() {
-      @Override
-      public void run() {
-        long elapsed   = System.currentTimeMillis() - messageRecord.getExpireStarted();
-        long remaining = messageRecord.getExpiresIn() - elapsed;
-
-        String duration = ExpirationUtil.getExpirationDisplayValue(MessageDetailsActivity.this, Math.max((int)(remaining / 1000), 1));
-        expiresInText.setText(duration);
-
-        if (running) {
-          Util.runOnMainDelayed(this, 500);
-        }
-      }
-    });
-  }
-
-  private void updateRecipients(MessageRecord messageRecord, Recipient recipient, List<RecipientDeliveryStatus> recipients) {
-    final int toFromRes;
-    if (messageRecord.isMms() && !messageRecord.isPush() && !messageRecord.isOutgoing()) {
-      toFromRes = R.string.message_details_header__with;
-    } else if (messageRecord.isOutgoing()) {
-      toFromRes = R.string.message_details_header__to;
-    } else {
-      toFromRes = R.string.message_details_header__from;
-    }
-    toFrom.setText(toFromRes);
-    conversationItem.bind(messageRecord, Optional.absent(), Optional.absent(), glideRequests, dynamicLanguage.getCurrentLocale(), new HashSet<>(), recipient, null, false);
-    recipientsList.setAdapter(new MessageDetailsRecipientAdapter(this, glideRequests, messageRecord, recipients, isPushGroup));
-  }
-
-  private void inflateMessageViewIfAbsent(MessageRecord messageRecord) {
-    if (conversationItem == null) {
-      if (messageRecord.isGroupAction()) {
-        conversationItem = (ConversationItem) inflater.inflate(R.layout.conversation_item_update, itemParent, false);
-      } else if (messageRecord.isOutgoing()) {
-        conversationItem = (ConversationItem) inflater.inflate(R.layout.conversation_item_sent, itemParent, false);
-      } else {
-        conversationItem = (ConversationItem) inflater.inflate(R.layout.conversation_item_received, itemParent, false);
-      }
-      itemParent.addView(conversationItem);
-    }
-  }
-
-  private @Nullable MessageRecord getMessageRecord(Context context, Cursor cursor, String type) {
-    switch (type) {
-      case MmsSmsDatabase.SMS_TRANSPORT:
-        SmsDatabase        smsDatabase = DatabaseFactory.getSmsDatabase(context);
-        SmsDatabase.Reader reader      = smsDatabase.readerFor(cursor);
-        return reader.getNext();
-      case MmsSmsDatabase.MMS_TRANSPORT:
-        MmsDatabase        mmsDatabase = DatabaseFactory.getMmsDatabase(context);
-        MmsDatabase.Reader mmsReader   = mmsDatabase.readerFor(cursor);
-        return mmsReader.getNext();
-      default:
-        throw new AssertionError("no valid message type specified");
-    }
-  }
-
-  private void copyToClipboard(@NonNull String text) {
-    ((ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE)).setPrimaryClip(ClipData.newPlainText("text", text));
-  }
-
-  @Override
-  public @NonNull Loader<Cursor> onCreateLoader(int id, Bundle args) {
-    return new MessageDetailsLoader(this, getIntent().getStringExtra(TYPE_EXTRA),
-                                    getIntent().getLongExtra(MESSAGE_ID_EXTRA, -1));
-  }
-
-  @Override
-  public void onLoadFinished(@NonNull Loader<Cursor> loader, Cursor cursor) {
-    MessageRecord messageRecord = getMessageRecord(this, cursor, getIntent().getStringExtra(TYPE_EXTRA));
-
-    if (messageRecord == null) {
-      finish();
-    } else {
-      new MessageRecipientAsyncTask(this, messageRecord).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
-    }
-  }
-
-  @Override
-  public void onLoaderReset(@NonNull Loader<Cursor> loader) {
-    recipientsList.setAdapter(null);
-  }
-
-  @Override
-  public boolean onOptionsItemSelected(MenuItem item) {
-    super.onOptionsItemSelected(item);
-
-    switch (item.getItemId()) {
-      case android.R.id.home: finish(); return true;
-    }
-
-    return false;
-  }
-
-  @SuppressLint("StaticFieldLeak")
-  private class MessageRecipientAsyncTask extends AsyncTask<Void,Void,List<RecipientDeliveryStatus>> {
-
-    private final WeakReference<Context> weakContext;
-    private final MessageRecord          messageRecord;
-
-    MessageRecipientAsyncTask(@NonNull Context context, @NonNull MessageRecord messageRecord) {
-      this.weakContext   = new WeakReference<>(context);
-      this.messageRecord = messageRecord;
-    }
-
-    protected Context getContext() {
-      return weakContext.get();
-    }
-
-    @Override
-    public List<RecipientDeliveryStatus> doInBackground(Void... voids) {
-      Context context = getContext();
-
-      if (context == null) {
-        Log.w(TAG, "associated context is destroyed, finishing early");
-        return null;
-      }
-
-      List<RecipientDeliveryStatus> recipients = new LinkedList<>();
-
-      if (!messageRecord.getRecipient().isGroup()) {
-        recipients.add(new RecipientDeliveryStatus(messageRecord.getRecipient(), getStatusFor(messageRecord.getDeliveryReceiptCount(), messageRecord.getReadReceiptCount(), messageRecord.isPending()), messageRecord.isUnidentified(), -1));
-      } else {
-        List<GroupReceiptInfo> receiptInfoList = DatabaseFactory.getGroupReceiptDatabase(context).getGroupReceiptInfo(messageRecord.getId());
-
-        if (receiptInfoList.isEmpty()) {
-          List<Recipient> group = DatabaseFactory.getGroupDatabase(context).getGroupMembers(messageRecord.getRecipient().requireGroupId(), GroupDatabase.MemberSet.FULL_MEMBERS_EXCLUDING_SELF);
-
-          for (Recipient recipient : group) {
-            recipients.add(new RecipientDeliveryStatus(recipient, RecipientDeliveryStatus.Status.UNKNOWN, false, -1));
-          }
-        } else {
-          for (GroupReceiptInfo info : receiptInfoList) {
-            recipients.add(new RecipientDeliveryStatus(Recipient.resolved(info.getRecipientId()),
-                                                       getStatusFor(info.getStatus(), messageRecord.isPending(), messageRecord.isFailed()),
-                                                       info.isUnidentified(),
-                                                       info.getTimestamp()));
-          }
-        }
-      }
-
-      return recipients;
-    }
-
-    @Override
-    public void onPostExecute(List<RecipientDeliveryStatus> recipients) {
-      if (getContext() == null) {
-        Log.w(TAG, "AsyncTask finished with a destroyed context, leaving early.");
-        return;
-      }
-
-      inflateMessageViewIfAbsent(messageRecord);
-      updateRecipients(messageRecord, messageRecord.getRecipient(), recipients);
-
-      boolean isGroupNetworkFailure      = messageRecord.isFailed() && !messageRecord.getNetworkFailures().isEmpty();
-      boolean isIndividualNetworkFailure = messageRecord.isFailed() && !isPushGroup && messageRecord.getIdentityKeyMismatches().isEmpty();
-
-      if (isGroupNetworkFailure || isIndividualNetworkFailure) {
-        errorText.setVisibility(View.VISIBLE);
-        resendButton.setVisibility(View.VISIBLE);
-        resendButton.setOnClickListener(this::onResendClicked);
-        metadataContainer.setVisibility(View.GONE);
-      } else if (messageRecord.isFailed()) {
-        errorText.setVisibility(View.VISIBLE);
-        resendButton.setVisibility(View.GONE);
-        resendButton.setOnClickListener(null);
-        metadataContainer.setVisibility(View.GONE);
-      } else {
-        updateTransport(messageRecord);
-        updateTime(messageRecord);
-        updateExpirationTime(messageRecord);
-        errorText.setVisibility(View.GONE);
-        resendButton.setVisibility(View.GONE);
-        resendButton.setOnClickListener(null);
-        metadataContainer.setVisibility(View.VISIBLE);
-      }
-    }
-
-    private RecipientDeliveryStatus.Status getStatusFor(int deliveryReceiptCount, int readReceiptCount, boolean pending) {
-      if      (readReceiptCount > 0)     return RecipientDeliveryStatus.Status.READ;
-      else if (deliveryReceiptCount > 0) return RecipientDeliveryStatus.Status.DELIVERED;
-      else if (!pending)                 return RecipientDeliveryStatus.Status.SENT;
-      else                               return RecipientDeliveryStatus.Status.PENDING;
-    }
-
-    private RecipientDeliveryStatus.Status getStatusFor(int groupStatus, boolean pending, boolean failed) {
-      if      (groupStatus == GroupReceiptDatabase.STATUS_READ)                    return RecipientDeliveryStatus.Status.READ;
-      else if (groupStatus == GroupReceiptDatabase.STATUS_DELIVERED)               return RecipientDeliveryStatus.Status.DELIVERED;
-      else if (groupStatus == GroupReceiptDatabase.STATUS_UNDELIVERED && failed)   return RecipientDeliveryStatus.Status.UNKNOWN;
-      else if (groupStatus == GroupReceiptDatabase.STATUS_UNDELIVERED && !pending) return RecipientDeliveryStatus.Status.SENT;
-      else if (groupStatus == GroupReceiptDatabase.STATUS_UNDELIVERED)             return RecipientDeliveryStatus.Status.PENDING;
-      else if (groupStatus == GroupReceiptDatabase.STATUS_UNKNOWN)                 return RecipientDeliveryStatus.Status.UNKNOWN;
-      throw new AssertionError();
-    }
-
-    private void onResendClicked(View v) {
-      resendButton.setVisibility(View.GONE);
-      SignalExecutors.BOUNDED.execute(() -> MessageSender.resend(MessageDetailsActivity.this, messageRecord));
-    }
-  }
-}