使用Overlay来弹出聊天窗口

lib/screens/main_screen.dart

@@ -37,7 +37,8 @@ class _MainScreenState extends State<MainScreen> {
             ),
           ),
           // FloatingIcon(),
-          ChatPopup()
+          ChatPopup(
+          )
         ],
       ),
     );

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;

lib/widgets/chat_popup.dart

@@ -1,6 +1,7 @@
 import 'dart:ui';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
+import '../pages/full_screen.dart';
 import '../services/message_service.dart';
 import 'chat/chat_window_content.dart';
 import 'chat_floating_icon.dart';
@@ -10,8 +11,11 @@ class ChatPopup extends StatefulWidget {
   final Widget? icon;
   final Size chatSize;
 
+  final ChatFloatingIcon? child;
+
   const ChatPopup({
     super.key,
+    this.child,
     this.iconSize,
     this.icon,
     this.chatSize = const Size(320, 450),
@@ -25,7 +29,6 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
   OverlayEntry? _overlayEntry;
   Offset _iconPosition = const Offset(10, 120);
   final double _iconSizeDefault = 80.0;
-  bool _isShowingPopup = false;
   late AnimationController _partScreenAnimationController;
 
   @override
@@ -35,9 +38,6 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
       duration: const Duration(milliseconds: 250),
       vsync: this,
     );
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      _insertOverlay();
-    });
   }
 
   @override
@@ -47,35 +47,34 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
     super.dispose();
   }
 
+  void _openFullScreen() async {
+    final messageService = context.read<MessageService>();
+    _removeOverlay();
+
+    await Navigator.of(context).push(
+      MaterialPageRoute(
+        builder: (context) => ChangeNotifierProvider.value(
+          value: messageService, // 传递同一个单例实例
+          child: const FullScreenPage(),
+        ),
+      ),
+    );
+  }
+
   void _insertOverlay() {
     if (_overlayEntry != null) return;
     _overlayEntry = OverlayEntry(
       builder: (context) => _buildOverlayContent(),
     );
     Overlay.of(context).insert(_overlayEntry!);
-  }
-
-  void _removeOverlay() {
-    _overlayEntry?.remove();
-    _overlayEntry = null;
-  }
-
-  void _showPopup() {
-    if (_isShowingPopup) return;
-    setState(() {
-      _isShowingPopup = true;
-    });
     _partScreenAnimationController.forward();
   }
 
-  void _hidePopup() {
-    if (!_isShowingPopup) return;
+  void _removeOverlay() {
+    if (_overlayEntry == null) return;
     _partScreenAnimationController.reverse().then((_) {
-      if (mounted) {
-        setState(() {
-          _isShowingPopup = false;
-        });
-      }
+      _overlayEntry?.remove();
+      _overlayEntry = null;
     });
   }
 
@@ -84,39 +83,29 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
       value: MessageService.instance,
       child: Material(
         color: Colors.transparent,
-        child: Stack(
-          children: [
-            // 1. 底层：弹窗内容（只有在显示时才渲染）
-            if (_isShowingPopup) ...[
-              _buildPopupBackground(),
-              LayoutBuilder(
-                builder: (context, constraints) {
-                  final position = _calculatePosition(constraints);
-                  final double minHeight = constraints.maxHeight * 0.16;
-                  final double maxHeight = constraints.maxHeight * 0.4;
-                  final double chatWidth = constraints.maxWidth * 0.94;
-                  // 只在 isInitialized 时返回弹窗，否则返回空
-                  final chatWindow = ChatWindowContent(
+        child: LayoutBuilder(
+          builder: (context, constraints) {
+            final position = _calculatePosition(constraints);
+            final double minHeight = constraints.maxHeight * 0.16;
+            final double maxHeight = constraints.maxHeight * 0.4;
+            final double chatWidth = constraints.maxWidth * 0.94;
+            return Stack(
+              children: [
+                _buildPopupBackground(),
+                Positioned(
+                  left: position.left,
+                  right: position.right,
+                  bottom: position.bottom,
+                  child: ChatWindowContent(
                     animationController: _partScreenAnimationController,
                     minHeight: minHeight,
                     maxHeight: maxHeight,
                     chatWidth: chatWidth,
-                  );
-                  if ((chatWindow as dynamic)._isInitialized == false) {
-                    return const SizedBox.shrink();
-                  }
-                  return Positioned(
-                    left: position.left,
-                    right: position.right,
-                    bottom: position.bottom,
-                    child: chatWindow,
-                  );
-                },
-              ),
-            ],
-            // 2. 顶层：FloatingIcon（始终在最上层，事件不被遮挡）
-            _buildFloatingIcon(),
-          ],
+                  ),
+                ),
+              ],
+            );
+          },
         ),
       ),
     );
@@ -127,7 +116,7 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
       child: GestureDetector(
         onTap: () {
           final messageService = MessageService.instance;
-          _hidePopup();
+          _removeOverlay();
           messageService.abortReply();
           messageService.initializeEmpty();
         },
@@ -142,12 +131,9 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
     return ChatFloatingIcon(
       iconSize: widget.iconSize ?? _iconSizeDefault,
       icon: widget.icon,
-      onTap: () {
-        // 默认点击弹出全屏
-      },
       onLongPress: () async {
         final messageService = MessageService.instance;
-        _showPopup();
+        _insertOverlay();
         await messageService.startVoiceInput();
       },
       onLongPressUp: () async {
@@ -155,7 +141,7 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
         await messageService.stopAndProcessVoiceInput();
         final hasMessage = messageService.messages.isNotEmpty;
         if (!hasMessage) {
-          _hidePopup();
+          _removeOverlay();
         }
       },
       onPositionChanged: (position) {
@@ -168,7 +154,6 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
     );
   }
 
-
   // 计算PartScreen的位置，使其显示在FloatingIcon附近
   EdgeInsets _calculatePosition(BoxConstraints constraints) {
     final screenWidth = constraints.maxWidth;
@@ -217,7 +202,7 @@ class _ChatPopupState extends State<ChatPopup> with SingleTickerProviderStateMix
 
   @override
   Widget build(BuildContext context) {
-    // 只返回空容器，实际内容都在 Overlay 中
-    return const SizedBox.shrink();
+    // 只渲染 FloatingIcon，Overlay 弹窗内容在长按时插入
+    return _buildFloatingIcon();
   }
 }