Build a simple ANR detector.

app/src/main/java/org/thoughtcrime/securesms/logsubmit/LogSectionAnr.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2023 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.logsubmit
+
+import android.content.Context
+import org.thoughtcrime.securesms.database.LogDatabase
+import org.thoughtcrime.securesms.dependencies.ApplicationDependencies
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+class LogSectionAnr : LogSection {
+
+  companion object {
+    private val dateFormat = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS zzz", Locale.US)
+  }
+
+  override fun getTitle(): String = "ANR"
+
+  override fun getContent(context: Context): CharSequence {
+    val anrs = LogDatabase.getInstance(ApplicationDependencies.getApplication()).anrs.getAll()
+
+    return if (anrs.isEmpty()) {
+      "None"
+    } else {
+      "\n" + anrs.joinToString(separator = "\n\n") {
+        val date = dateFormat.format(Date(it.createdAt))
+        "------------- $date -------------\n${it.threadDump}"
+      }
+    }
+  }
+}

app/src/main/java/org/thoughtcrime/securesms/logsubmit/SubmitDebugLogRepository.java

@@ -97,6 +97,7 @@ public class SubmitDebugLogRepository {
       add(new LogSectionSenderKey());
     }
     add(new LogSectionRemappedRecords());
+    add(new LogSectionAnr());
     add(new LogSectionLogcat());
     add(new LogSectionLoggerHeader());
   }};