Fixing ANRs

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt

@@ -58,6 +58,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.receiveAsFlow
 import kotlinx.coroutines.launch
@@ -1737,10 +1738,19 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         binding.inputBar.text = ""
         binding.inputBar.cancelQuoteDraft()
         binding.inputBar.cancelLinkPreviewDraft()
-        // Put the message in the database
-        message.id = smsDb.insertMessageOutbox(viewModel.threadId, outgoingTextMessage, false, message.sentTimestamp!!, null, true)
-        // Send it
-        MessageSender.send(message, recipient.address)
+        lifecycleScope.launch(Dispatchers.Default) {
+            // Put the message in the database
+            message.id = smsDb.insertMessageOutbox(
+                viewModel.threadId,
+                outgoingTextMessage,
+                false,
+                message.sentTimestamp!!,
+                null,
+                true
+            )
+            // Send it
+            MessageSender.send(message, recipient.address)
+        }
         // Send a typing stopped message
         ApplicationContext.getInstance(this).typingStatusSender.onTypingStopped(viewModel.threadId)
         return Pair(recipient.address, sentTimestamp)

app/src/main/java/org/thoughtcrime/securesms/home/search/GlobalSearchViewModel.kt

@@ -3,6 +3,7 @@ package org.thoughtcrime.securesms.home.search
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.channels.BufferOverflow
@@ -13,11 +14,13 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.buffer
 import kotlinx.coroutines.flow.flatMapLatest
 import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.mapLatest
 import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.plus
+import kotlinx.coroutines.withContext
 import org.thoughtcrime.securesms.search.SearchRepository
 import org.thoughtcrime.securesms.search.model.SearchResult
 import javax.inject.Inject
@@ -38,9 +41,14 @@ class GlobalSearchViewModel @Inject constructor(
         .buffer(onBufferOverflow = BufferOverflow.DROP_OLDEST)
         .mapLatest { query ->
             if (query.trim().isEmpty()) {
-                // searching for 05 as contactDb#getAllContacts was not returning contacts
-                // without a nickname/name who haven't approved us.
-                GlobalSearchResult(query.toString(), searchRepository.queryContacts("05").first.toList())
+                withContext(Dispatchers.Default) {
+                    // searching for 05 as contactDb#getAllContacts was not returning contacts
+                    // without a nickname/name who haven't approved us.
+                    GlobalSearchResult(
+                        query.toString(),
+                        searchRepository.queryContacts("05").first.toList()
+                    )
+                }
             } else {
                 // User input delay in case we get a new query within a few hundred ms this
                 // coroutine will be cancelled and the expensive query will not be run.