Add sticker details.

app/src/main/java/org/thoughtcrime/securesms/stickers/preview/StickerPackPreviewAction.kt

@@ -6,6 +6,7 @@
 package org.thoughtcrime.securesms.stickers.preview
 
 import org.thoughtcrime.securesms.database.model.StickerPackParams
+import org.thoughtcrime.securesms.stickers.StickerManifest
 
 /**
  * Actions that happen in [StickerPackPreviewActivityV2]
@@ -13,6 +14,7 @@ import org.thoughtcrime.securesms.database.model.StickerPackParams
 sealed interface StickerPackPreviewAction {
   data class SendPack(val params: StickerPackParams) : StickerPackPreviewAction
   data class ShareExternally(val params: StickerPackParams) : StickerPackPreviewAction
+  data class SendSticker(val sticker: StickerManifest.Sticker) : StickerPackPreviewAction
   data object LinkCopied : StickerPackPreviewAction
   data object PackUnavailable : StickerPackPreviewAction
 }

app/src/main/java/org/thoughtcrime/securesms/stickers/preview/StickerPackPreviewActivityV2.kt

@@ -12,6 +12,7 @@ import androidx.activity.compose.setContent
 import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -84,12 +85,14 @@ import org.thoughtcrime.securesms.database.model.StickerPackId
 import org.thoughtcrime.securesms.database.model.StickerPackKey
 import org.thoughtcrime.securesms.database.model.StickerPackParams
 import org.thoughtcrime.securesms.sharing.MultiShareArgs
+import org.thoughtcrime.securesms.stickers.StickerLocator
 import org.thoughtcrime.securesms.stickers.StickerManifest
 import org.thoughtcrime.securesms.stickers.StickerPreviewDataFactory
 import org.thoughtcrime.securesms.stickers.StickerRemoteUri
 import org.thoughtcrime.securesms.stickers.StickerUrl
 import org.thoughtcrime.securesms.stickers.preview.StickerPackPreviewUiState.ContentState
 import org.thoughtcrime.securesms.stickers.preview.StickerPackPreviewUiState.UserPrompt
+import org.thoughtcrime.securesms.util.MediaUtil
 import org.thoughtcrime.securesms.util.viewModel
 import java.text.NumberFormat
 import kotlin.jvm.optionals.getOrElse
@@ -147,6 +150,7 @@ class StickerPackPreviewActivityV2 : PassphraseRequiredActivity() {
         Toast.makeText(this, R.string.StickerPackPreviewActivity_failed_to_load_sticker_pack, Toast.LENGTH_SHORT).show()
         onBackPressedDispatcher.onBackPressed()
       }
+      is StickerPackPreviewAction.SendSticker -> openStickerShareSheet(action.sticker)
     }
   }
 
@@ -164,6 +168,24 @@ class StickerPackPreviewActivityV2 : PassphraseRequiredActivity() {
     )
   }
 
+  private fun openStickerShareSheet(sticker: StickerManifest.Sticker) {
+    val uri = sticker.uri.orNull() ?: return
+
+    MultiselectForwardFragment.showBottomSheet(
+      supportFragmentManager = supportFragmentManager,
+      multiselectForwardFragmentArgs = MultiselectForwardFragmentArgs(
+        multiShareArgs = listOf(
+          MultiShareArgs.Builder()
+            .withDataUri(uri)
+            .withDataType(sticker.contentType?.takeIf { it.isNotBlank() } ?: MediaUtil.IMAGE_WEBP)
+            .withStickerLocator(StickerLocator(sticker.packId, sticker.packKey, sticker.id, sticker.emoji))
+            .build()
+        ),
+        title = R.string.StickerManagement_share_sheet_title
+      )
+    )
+  }
+
   private fun openSystemShareSheet(params: StickerPackParams) {
     val shareIntent = Intent(Intent.ACTION_SEND).apply {
       type = "text/plain"
@@ -280,6 +302,15 @@ private fun StickerPackPreviewScreen(
       )
     }
 
+    if (uiState.userPrompt is UserPrompt.PreviewSticker && stickerManifest != null) {
+      StickerPreviewSheet(
+        stickerManifest,
+        uiState.userPrompt.sticker,
+        loadedState.isPackInstalled,
+        onEvent
+      )
+    }
+
     when (uiState.contentState) {
       is ContentState.Loading -> {
         Box(
@@ -380,7 +411,8 @@ private fun StickerPackPreviewContent(
     ) { item ->
       StickerImage(
         sticker = item,
-        modifier = Modifier.size(96.dp)
+        modifier = Modifier.size(96.dp),
+        onClick = { onEvent(StickerPackPreviewEvent.StickerClicked(item)) }
       )
     }
   }
@@ -542,6 +574,29 @@ private fun StickerPackShareSheet(
   }
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun StickerPreviewSheet(
+  stickerManifest: StickerManifest,
+  sticker: StickerManifest.Sticker,
+  isPackInstalled: Boolean,
+  onEvent: (StickerPackPreviewEvent) -> Unit
+) {
+  val sheetState = rememberModalBottomSheetState()
+  val scope = rememberCoroutineScope()
+
+  BottomSheets.BottomSheet(
+    sheetState = sheetState,
+    onDismissRequest = { onEvent(StickerPackPreviewEvent.ShareSheetDismissed) }
+  ) {
+    StickerPreviewSheetContent(
+      stickerManifest,
+      sticker,
+      isPackInstalled
+    ) { sheetState.dismissWithAnimation(scope, onComplete = { onEvent(StickerPackPreviewEvent.StickerSent(sticker)) }) }
+  }
+}
+
 @Composable
 private fun StickerPackShareSheetContent(
   params: StickerPackParams,
@@ -627,15 +682,20 @@ private fun StickerPackShareSheetContent(
 }
 
 @Composable
-private fun StickerImage(
+fun StickerImage(
   modifier: Modifier = Modifier,
-  sticker: StickerManifest.Sticker
+  sticker: StickerManifest.Sticker,
+  onClick: (() -> Unit)? = null
 ) {
   if (!LocalInspectionMode.current) {
     GlideImage(
       model = sticker.imageModel,
       enableApngAnimation = true,
-      modifier = modifier
+      modifier = if (onClick != null) {
+        modifier.clickable(onClick = { onClick() })
+      } else {
+        modifier
+      }
     )
   } else {
     Image(

app/src/main/java/org/thoughtcrime/securesms/stickers/preview/StickerPackPreviewEvent.kt

@@ -5,6 +5,8 @@
 
 package org.thoughtcrime.securesms.stickers.preview
 
+import org.thoughtcrime.securesms.stickers.StickerManifest
+
 /**
  * Events that happen in [StickerPackPreviewActivityV2]
  */
@@ -19,4 +21,6 @@ sealed interface StickerPackPreviewEvent {
   data object ShareSheetDismissed : StickerPackPreviewEvent
   data object CopyLinkClicked : StickerPackPreviewEvent
   data object ShareExternallyClicked : StickerPackPreviewEvent
+  data class StickerClicked(val sticker: StickerManifest.Sticker) : StickerPackPreviewEvent
+  data class StickerSent(val sticker: StickerManifest.Sticker) : StickerPackPreviewEvent
 }

app/src/main/java/org/thoughtcrime/securesms/stickers/preview/StickerPackPreviewViewModelV2.kt

@@ -99,6 +99,13 @@ class StickerPackPreviewViewModelV2(
         showPrompt(null)
         internalActions.send(StickerPackPreviewAction.ShareExternally(params))
       }
+
+      is StickerPackPreviewEvent.StickerClicked -> showPrompt(UserPrompt.PreviewSticker(event.sticker))
+
+      is StickerPackPreviewEvent.StickerSent -> {
+        showPrompt(null)
+        internalActions.send(StickerPackPreviewAction.SendSticker(event.sticker))
+      }
     }
   }
 
@@ -179,5 +186,6 @@ data class StickerPackPreviewUiState(
   sealed interface UserPrompt {
     data object ConfirmRemovePack : UserPrompt
     data object ShareStickerPack : UserPrompt
+    data class PreviewSticker(val sticker: StickerManifest.Sticker) : UserPrompt
   }
 }

app/src/main/java/org/thoughtcrime/securesms/stickers/preview/StickerPreviewBottomSheet.kt

@@ -0,0 +1,95 @@
+/*
+ * Copyright 2026 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.stickers.preview
+
+import android.net.Uri
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import org.signal.core.ui.compose.DayNightPreviews
+import org.signal.core.ui.compose.Dividers
+import org.signal.core.ui.compose.Previews
+import org.signal.core.ui.compose.Rows
+import org.signal.core.ui.compose.SignalIcons
+import org.signal.core.util.orNull
+import org.signal.core.util.toOptional
+import org.thoughtcrime.securesms.R
+import org.thoughtcrime.securesms.stickers.StickerManifest
+import org.thoughtcrime.securesms.stickers.StickerPreviewDataFactory
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun StickerPreviewSheetContent(
+  stickerManifest: StickerManifest,
+  sticker: StickerManifest.Sticker,
+  isPackInstalled: Boolean,
+  onForwardClick: () -> Unit
+) {
+  Column(
+    modifier = Modifier.fillMaxWidth(),
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    StickerImage(
+      sticker = sticker,
+      modifier = Modifier
+        .padding(vertical = 24.dp)
+        .size(144.dp)
+    )
+
+    val title = stickerManifest.title.orNull() ?: stringResource(R.string.StickerPackPreviewActivity_untitled)
+    val author = stickerManifest.author.orNull() ?: stringResource(R.string.StickerManagement_author_unknown)
+
+    Text(
+      text = stringResource(R.string.StickerPreviewBottomSheet__title_author, title, author),
+      style = MaterialTheme.typography.bodyMedium,
+      textAlign = TextAlign.Center,
+      color = MaterialTheme.colorScheme.onSurfaceVariant,
+      modifier = Modifier.padding(bottom = 16.dp)
+    )
+
+    if (isPackInstalled && sticker.uri.isPresent) {
+      Dividers.Default()
+
+      Rows.TextRow(
+        text = stringResource(R.string.StickerManagement_menu_send_pack),
+        icon = SignalIcons.Forward.imageVector,
+        onClick = onForwardClick
+      )
+    }
+  }
+}
+
+@DayNightPreviews
+@Composable
+private fun StickerPackShareSheetContentPreview() {
+  Previews.BottomSheetContentPreview {
+    val cover = StickerManifest.Sticker("packId0", "packKey0", 0, "👍", null, Uri.EMPTY)
+
+    StickerPreviewSheetContent(
+      stickerManifest = StickerManifest(
+        cover.packId,
+        cover.packKey,
+        "Misbrands".toOptional(),
+        "Sticker Pack Author".toOptional(),
+        cover.toOptional(),
+        StickerPreviewDataFactory.manifestStickers(33)
+      ),
+      sticker = cover,
+      isPackInstalled = true,
+      onForwardClick = {}
+    )
+  }
+}

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

@@ -2874,6 +2874,8 @@
     <string name="StickerPackPreviewActivity_remove">Uninstall</string>
     <string name="StickerPackPreviewActivity_stickers">Stickers</string>
     <string name="StickerPackPreviewActivity_failed_to_load_sticker_pack">Failed to load sticker pack</string>
+    <!-- Bottom sheet describing a sticker. First placeholder is the title of the sticker pack and second is the author -->
+    <string name="StickerPreviewBottomSheet__title_author">%1$s · %2$s</string>
 
     <!-- Menu option to save a debug log file to disk. -->
     <string name="SubmitDebugLogActivity_save">Save</string>