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android: Optimized chats snapshotFlow

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Avently
2022-12-15 14:00:36 +03:00
parent 8775db7c97
commit 1ab0f55ef1
1 changed files with 8 additions and 9 deletions
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apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt
+8 -9
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@@ -77,16 +77,15 @@ fun ChatView(chatId: String, chatModel: ChatModel, onComposed: () -> Unit) {
}
}
launch {
// .toList() is important for making observation working
snapshotFlow { chatModel.chats.toList() }
snapshotFlow {
runCatching { chatModel.chats.firstOrNull { chat -> chat.chatInfo.id == chatModel.chatId.value } }
.onFailure { Log.e(TAG, it.stackTraceToString()) }
.getOrNull()
}
.distinctUntilChanged()
.collect { chats ->
chats.firstOrNull { chat -> chat.chatInfo.id == chatModel.chatId.value }.let {
// Only changed chatInfo is important thing. Other properties can be skipped for reducing recompositions
if (it?.chatInfo != activeChat.value?.chatInfo) {
activeChat.value = it
}}
}
// Only changed chatInfo is important thing. Other properties can be skipped for reducing recompositions
.filter { it?.chatInfo != activeChat.value?.chatInfo && it != null }
.collect { activeChat.value = it }
}
}
val view = LocalView.current