Add threading for the LazyColumn refresh.

app/src/main/java/com/vitorpamplona/amethyst/model/User.kt

@@ -87,14 +87,14 @@ class User(val pubkey: ByteArray) {
 
         updatedFollowsAt = updateAt
 
-        live.refresh()
+        refreshObservers()
     }
 
     fun updateUserInfo(newUserInfo: UserMetadata, updateAt: Long) {
         info = newUserInfo
         updatedMetadataAt = updateAt
 
-        live.refresh()
+        refreshObservers()
     }
 
     fun isFollowing(user: User): Boolean {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/CardFeedViewModel.kt

@@ -10,6 +10,9 @@ import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.NostrDataSource
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -23,28 +26,24 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
     private var lastNotes: List<Note>? = null
 
     fun refresh() {
-        // For some reason, view Model Scope doesn't call
-        viewModelScope.launch {
-            refreshSuspend()
-        }
-    }
+        val scope = CoroutineScope(Job() + Dispatchers.Main)
+        scope.launch {
+            val notes = dataSource.loadTop()
 
-    fun refreshSuspend() {
-        val notes = dataSource.loadTop()
+            val lastNotesCopy = lastNotes
 
-        val lastNotesCopy = lastNotes
-
-        val oldNotesState = feedContent.value
-        if (lastNotesCopy != null && oldNotesState is CardFeedState.Loaded) {
-            val newCards = convertToCard(notes.minus(lastNotesCopy))
-            if (newCards.isNotEmpty()) {
+            val oldNotesState = feedContent.value
+            if (lastNotesCopy != null && oldNotesState is CardFeedState.Loaded) {
+                val newCards = convertToCard(notes.minus(lastNotesCopy))
+                if (newCards.isNotEmpty()) {
+                    lastNotes = notes
+                    updateFeed((oldNotesState.feed + newCards).sortedBy { it.createdAt() }.reversed())
+                }
+            } else {
+                val cards = convertToCard(notes)
                 lastNotes = notes
-                updateFeed((oldNotesState.feed + newCards).sortedBy { it.createdAt() }.reversed())
+                updateFeed(cards)
             }
-        } else {
-            val cards = convertToCard(notes)
-            lastNotes = notes
-            updateFeed(cards)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/FeedViewModel.kt

@@ -24,23 +24,19 @@ class FeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
     private val _feedContent = MutableStateFlow<FeedState>(FeedState.Loading)
     val feedContent = _feedContent.asStateFlow()
 
-    @OptIn(ExperimentalTime::class)
     fun refresh() {
         val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
-            println("AAA" + measureTimedValue {
-                val notes = dataSource.loadTop()
+            val notes = dataSource.loadTop()
 
-                val oldNotesState = feedContent.value
-                if (oldNotesState is FeedState.Loaded) {
-                    if (notes != oldNotesState.feed) {
-                        updateFeed(notes)
-                    }
-                } else {
+            val oldNotesState = feedContent.value
+            if (oldNotesState is FeedState.Loaded) {
+                if (notes != oldNotesState.feed) {
                     updateFeed(notes)
                 }
-            }.duration)
-
+            } else {
+                updateFeed(notes)
+            }
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/UserFeedViewModel.kt

@@ -10,6 +10,9 @@ import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.service.NostrDataSource
 import com.vitorpamplona.amethyst.service.NostrUserProfileFollowersDataSource
 import com.vitorpamplona.amethyst.service.NostrUserProfileFollowsDataSource
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -29,22 +32,18 @@ open class UserFeedViewModel(val dataSource: NostrDataSource<User>): ViewModel()
     val feedContent = _feedContent.asStateFlow()
 
     fun refresh() {
-        // For some reason, view Model Scope doesn't call
-        viewModelScope.launch {
-            refreshSuspend()
-        }
-    }
+        val scope = CoroutineScope(Job() + Dispatchers.Main)
+        scope.launch {
+            val notes = dataSource.loadTop()
 
-    fun refreshSuspend() {
-        val notes = dataSource.loadTop()
-
-        val oldNotesState = feedContent.value
-        if (oldNotesState is UserFeedState.Loaded) {
-            if (notes != oldNotesState.feed) {
+            val oldNotesState = feedContent.value
+            if (oldNotesState is UserFeedState.Loaded) {
+                if (notes != oldNotesState.feed) {
+                    updateFeed(notes)
+                }
+            } else {
                 updateFeed(notes)
             }
-        } else {
-            updateFeed(notes)
         }
     }