Channel list automatic channel selection disabled for compact iPad screen size

Author: martinmitrevski

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### 🐞 Fixed
 - Channel actions popup wrong appearance using a custom `NavigationView`
+- Channel list automatic channel selection disabled for compact iPad screen size
 
 # [4.28.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.28.0)
 _February 28, 2023_

Sources/StreamChatSwiftUI/ChatChannelList/ChatChannelListView.swift

@@ -171,6 +171,8 @@ extension ChatChannelListView where Factory == DefaultViewFactory {
 }
 
 public struct ChatChannelListContentView<Factory: ViewFactory>: View {
+    
+    @Environment(\.horizontalSizeClass) var horizontalSizeClass
 
     private var viewFactory: Factory
     @ObservedObject private var viewModel: ChatChannelListViewModel
@@ -232,6 +234,11 @@ public struct ChatChannelListContentView<Factory: ViewFactory>: View {
                     trailingSwipeLeftButtonTapped: viewModel.onMoreTapped(channel:),
                     leadingSwipeButtonTapped: { _ in /* No leading button by default. */ }
                 )
+                .onAppear {
+                    if horizontalSizeClass == .regular {
+                        viewModel.preselectChannelIfNeeded()
+                    }
+                }
             }
 
             viewFactory.makeChannelListStickyFooterView()

Sources/StreamChatSwiftUI/ChatChannelList/ChatChannelListViewModel.swift

@@ -241,6 +241,12 @@ open class ChatChannelListViewModel: ObservableObject, ChatChannelListController
             hideTabBar = false
         }
     }
+    
+    public func preselectChannelIfNeeded() {
+        if isIPad && selectedChannel == nil && utils.messageListConfig.iPadSplitViewEnabled {
+            selectedChannel = channels.first?.channelSelectionInfo
+        }
+    }
 
     // MARK: - private
 
@@ -296,7 +302,6 @@ open class ChatChannelListViewModel: ObservableObject, ChatChannelListController
                     self.updateChannels()
                 }
                 self.checkForDeeplinks()
-                self.setInitialChannelIfSplitView()
             }
         }
     }
@@ -359,12 +364,6 @@ open class ChatChannelListViewModel: ObservableObject, ChatChannelListController
         channels = controller?.channels ?? LazyCachedMapCollection<ChatChannel>()
     }
 
-    private func setInitialChannelIfSplitView() {
-        if isIPad && selectedChannel == nil && utils.messageListConfig.iPadSplitViewEnabled {
-            selectedChannel = channels.first?.channelSelectionInfo
-        }
-    }
-
     private func handleChannelAppearance() {
         if !queuedChannelsChanges.isEmpty && selectedChannel == nil {
             channels = queuedChannelsChanges