ui: do not show "No relays" while leaving a channel (#7673)

apps/ios/Shared/Views/Chat/ComposeMessage/ComposeView.swift

@@ -767,6 +767,7 @@ struct ComposeView: View {
         let connectedCount = relayMembers.filter { !relayMemberRemoved($0.wrapped.memberStatus) && $0.wrapped.activeConn?.connStatus == .ready && $0.wrapped.activeConn?.connFailedErr == nil }.count
         let failedCount = relayMembers.filter { !relayMemberRemoved($0.wrapped.memberStatus) && $0.wrapped.activeConn?.connFailedErr != nil }.count
         let total = relayMembers.count > 0 ? relayMembers.count : hostnames.count
+        guard total > 0 || chatModel.membersLoaded else { return nil }
         let noActiveRelays = connectedCount == 0 && (removedCount + failedCount) == total
         return (hostnames, relayMembers, connectedCount, removedCount, failedCount, total, noActiveRelays)
     }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatView.kt

@@ -119,6 +119,20 @@ fun ChatView(
     }
     chat
   } }
+  if (chatsCtx.secondaryContextFilter == null) {
+    // cleared when the view is gone rather than on back: Android keeps it on screen while it slides out,
+    // and by then a channel being created may already be using this state
+    DisposableEffect(Unit) {
+      onDispose {
+        if (chatModel.chatId.value == null && chatModel.creatingChannelId.value == null) {
+          chatModel.groupMembers.value = emptyList()
+          chatModel.groupMembersIndexes.value = emptyMap()
+          chatModel.membersLoaded.value = false
+          ChannelRelaysModel.reset()
+        }
+      }
+    }
+  }
   val user = chatModel.currentUser.value
   val chatInfo = activeChat.value?.chatInfo
   if (chat == null || chatInfo == null || user == null) {
@@ -382,10 +396,6 @@ fun ChatView(
               hideKeyboard(view)
               AudioPlayer.stop()
               chatModel.chatId.value = null
-              chatModel.groupMembers.value = emptyList()
-              chatModel.groupMembersIndexes.value = emptyMap()
-              chatModel.membersLoaded.value = false
-              ChannelRelaysModel.reset()
             },
             info = {
               if (ModalManager.end.hasModalsOpen()) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ComposeView.kt

@@ -2153,7 +2153,8 @@ private fun ownerRelayState(chat: Chat, chatModel: ChatModel): OwnerRelayState?
   if (!gInfo.useRelays || gInfo.membership.memberRole != GroupMemberRole.Owner ||
     gInfo.membership.memberStatus in listOf(GroupMemberStatus.MemLeft, GroupMemberStatus.MemRemoved, GroupMemberStatus.MemGroupDeleted)
   ) return null
-  val relays = if (ChannelRelaysModel.groupId.value == gInfo.groupId) ChannelRelaysModel.groupRelays.toList() else emptyList()
+  if (ChannelRelaysModel.groupId.value != gInfo.groupId) return null
+  val relays = ChannelRelaysModel.groupRelays.toList()
   if (relays.isEmpty()) return OwnerRelayState(emptyList(), 0, 0, 0, true)
   val relayMembers = relays.map { relay ->
     relay to chatModel.groupMembers.value.firstOrNull { it.groupMemberId == relay.groupMemberId }
@@ -2186,6 +2187,7 @@ private fun subscriberRelayState(chat: Chat, chatModel: ChatModel): SubscriberRe
   val connectedCount = relayMembers.count { !relayMemberRemoved(it.memberStatus) && it.activeConn?.connStatus == ConnStatus.Ready && it.activeConn?.connFailedErr == null }
   val failedCount = relayMembers.count { !relayMemberRemoved(it.memberStatus) && it.activeConn?.connFailedErr != null }
   val total = if (relayMembers.isNotEmpty()) relayMembers.size else hostnames.size
+  if (total == 0 && !chatModel.membersLoaded.value) return null
   val noActiveRelays = connectedCount == 0 && (removedCount + failedCount) == total
   return SubscriberRelayState(hostnames, relayMembers, connectedCount, removedCount, failedCount, total, noActiveRelays)
 }

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chatlist/ChatListNavLinkView.kt

@@ -265,10 +265,13 @@ suspend fun setGroupMembers(rhId: Long?, groupInfo: GroupInfo, chatModel: ChatMo
       newMember
     }
   }
-  chatModel.groupMembersIndexes.value = emptyMap()
-  chatModel.groupMembers.value = newMembers
-  chatModel.membersLoaded.value = true
-  chatModel.populateGroupMembersIndexes()
+  withContext(Dispatchers.Main) {
+    if (chatModel.chatId.value != groupInfo.id) return@withContext
+    chatModel.groupMembersIndexes.value = emptyMap()
+    chatModel.groupMembers.value = newMembers
+    chatModel.membersLoaded.value = true
+    chatModel.populateGroupMembersIndexes()
+  }
 }
 
 @Composable