使用Overlay来弹出聊天窗口

lib/widgets/chat/chat_window_content.dart

@@ -27,7 +27,6 @@ class ChatWindowContent extends StatefulWidget {
 
 class _ChatWindowContentState extends State<ChatWindowContent> {
   final ScrollController _scrollController = ScrollController();
-  bool _isInitialized = false;
   int _lastMessageCount = 0;
 
   @override
@@ -36,9 +35,6 @@ class _ChatWindowContentState extends State<ChatWindowContent> {
     WidgetsBinding.instance.addPostFrameCallback((_) {
       final messageService = Provider.of<MessageService>(context, listen: false);
       messageService.removeNonListeningMessages();
-      setState(() {
-        _isInitialized = true;
-      });
     });
   }
 
@@ -73,10 +69,6 @@ class _ChatWindowContentState extends State<ChatWindowContent> {
 
   @override
   Widget build(BuildContext context) {
-    if (!_isInitialized) {
-      return const SizedBox.shrink();
-    }
-
     final minHeight = widget.minHeight ?? 0;
     final maxHeight = widget.maxHeight ?? double.infinity;
     final chatWidth = widget.chatWidth ?? double.infinity;