diff --git a/.fvmrc b/.fvmrc
new file mode 100644
index 0000000..c2783c6
--- /dev/null
+++ b/.fvmrc
@@ -0,0 +1,3 @@
+{
+  "flutter": "3.27.4"
+}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 642ebc8..1cc7945 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,4 +44,7 @@ app.*.map.json
 /android/app/profile
 /android/app/release
 
-.vscode/
\ No newline at end of file
+.vscode/
+
+# FVM Version Cache
+.fvm/
\ No newline at end of file
diff --git a/lib/ai_chat_assistant.dart b/lib/ai_chat_assistant.dart
index 0d0a5f8..42f1ea9 100644
--- a/lib/ai_chat_assistant.dart
+++ b/lib/ai_chat_assistant.dart
@@ -23,4 +23,7 @@ export 'models/vehicle_status_info.dart';
 
 export 'enums/vehicle_command_type.dart';
 export 'enums/message_status.dart';
-export 'enums/message_service_state.dart';
\ No newline at end of file
+export 'enums/message_service_state.dart';
+
+// utils
+export 'utils/assets_util.dart';
\ No newline at end of file
diff --git a/lib/manager.dart b/lib/manager.dart
index 53106d2..e913c61 100644
--- a/lib/manager.dart
+++ b/lib/manager.dart
@@ -8,6 +8,7 @@ import 'models/vehicle_cmd.dart';
 /// 车辆命令处理器抽象类
 abstract class VehicleCommandHandler {
   AIChatCommandCubit? commandCubit;
+
   /// 执行车辆控制命令
   Future<(bool, Map<String, dynamic>?)> executeCommand(VehicleCommand command);
 }
@@ -48,5 +49,4 @@ class AIChatAssistantManager {
     _commandCubit?.close();
     _commandCubit = null;
   }
-
 }
diff --git a/lib/screens/main_screen.dart b/lib/screens/main_screen.dart
index 80e2425..79fb72e 100644
--- a/lib/screens/main_screen.dart
+++ b/lib/screens/main_screen.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import '../widgets/floating_icon.dart';
+import '../utils/assets_util.dart';
 
 class MainScreen extends StatefulWidget {
   const MainScreen({super.key});
@@ -26,9 +27,9 @@ class _MainScreenState extends State<MainScreen> {
       body: Stack(
         children: [
           Container(
-            decoration: const BoxDecoration(
+            decoration: BoxDecoration(
               image: DecorationImage(
-                image: AssetImage('assets/images/bg.jpg', package: 'ai_chat_assistant'),
+                image: AssetsUtil.getImage('bg.jpg'),
                 fit: BoxFit.cover,
               ),
             ),
diff --git a/lib/screens/part_screen.dart b/lib/screens/part_screen.dart
index e6b1909..485dc3f 100644
--- a/lib/screens/part_screen.dart
+++ b/lib/screens/part_screen.dart
@@ -5,6 +5,7 @@ import '../screens/full_screen.dart';
 import 'package:provider/provider.dart';
 import '../services/message_service.dart';
 import '../widgets/gradient_background.dart';
+import '../utils/assets_util.dart';
 
 class PartScreen extends StatefulWidget {
   final VoidCallback? onHide;
@@ -202,11 +203,10 @@ class _PartScreenState extends State<PartScreen> {
                                         top: 6,
                                         right: 6,
                                         child: IconButton(
-                                          icon: Image.asset(
-                                            'assets/images/open_in_full.png',
+                                          icon: AssetsUtil.getImageWidget(
+                                            'open_in_full.png',
                                             width: 24,
                                             height: 24,
-                                            package: 'ai_chat_assistant',
                                           ),
                                           onPressed: _openFullScreen,
                                           padding: EdgeInsets.zero,
diff --git a/lib/widgets/assistant_avatar.dart b/lib/widgets/assistant_avatar.dart
index 8b90ee1..70e7a98 100644
--- a/lib/widgets/assistant_avatar.dart
+++ b/lib/widgets/assistant_avatar.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../utils/assets_util.dart';
 
 class AssistantAvatar extends StatelessWidget {
   final double width;
@@ -15,10 +16,9 @@ class AssistantAvatar extends StatelessWidget {
     return SizedBox(
       width: width,
       height: height,
-      child: Image.asset(
-        'assets/images/avatar.png',
+      child: AssetsUtil.getImageWidget(
+        'avatar.png',
         fit: BoxFit.contain,
-        package: 'ai_chat_assistant',
       ),
     );
   }
diff --git a/lib/widgets/chat_bubble.dart b/lib/widgets/chat_bubble.dart
index f7e027f..dc52ee3 100644
--- a/lib/widgets/chat_bubble.dart
+++ b/lib/widgets/chat_bubble.dart
@@ -9,6 +9,7 @@ import 'package:provider/provider.dart';
 import '../services/message_service.dart';
 import 'package:flutter/services.dart';
 import 'package:fluttertoast/fluttertoast.dart';
+import '../utils/assets_util.dart';
 
 class ChatBubble extends StatefulWidget {
   final ChatMessage message;
@@ -108,7 +109,7 @@ class _ChatBubbleState extends State<ChatBubble> {
       case MessageStatus.listening:
       case MessageStatus.recognizing:
       case MessageStatus.thinking:
-        icon = RotatingImage(imagePath: 'assets/images/thinking_circle.png');
+        icon = RotatingImage(imagePath: 'thinking_circle.png');
         color = Colors.white;
         break;
       case MessageStatus.executing:
@@ -123,11 +124,10 @@ class _ChatBubbleState extends State<ChatBubble> {
         break;
       case MessageStatus.completed:
       case MessageStatus.success:
-        icon = Image.asset(
-          'assets/images/checked.png',
+        icon = AssetsUtil.getImageWidget(
+          'checked.png',
           width: 20,
           height: 20,
-          package: 'ai_chat_assistant',
         );
         color = Colors.white;
         break;
@@ -306,8 +306,7 @@ class _ChatBubbleState extends State<ChatBubble> {
                           },
                           child: Padding(
                             padding: const EdgeInsets.only(left: 12),
-                            child: Image.asset('assets/images/copy.png',
-                                package: 'ai_chat_assistant',
+                            child: AssetsUtil.getImageWidget('copy.png',
                                 width: 22,
                                 height: 22),
                           ),
@@ -322,12 +321,10 @@ class _ChatBubbleState extends State<ChatBubble> {
                           child: Padding(
                             padding: const EdgeInsets.only(left: 12),
                             child: _liked
-                                ? Image.asset('assets/images/liked2.png',
-                                    package: 'ai_chat_assistant',
+                                ? AssetsUtil.getImageWidget('liked2.png',
                                     width: 22,
                                     height: 22)
-                                : Image.asset('assets/images/liked1.png',
-                                    package: 'ai_chat_assistant',
+                                : AssetsUtil.getImageWidget('liked1.png',
                                     width: 22,
                                     height: 22),
                           ),
@@ -342,12 +339,10 @@ class _ChatBubbleState extends State<ChatBubble> {
                           child: Padding(
                               padding: const EdgeInsets.only(left: 12),
                               child: _disliked
-                                  ? Image.asset('assets/images/disliked2.png',
-                                      package: 'ai_chat_assistant',
+                                  ? AssetsUtil.getImageWidget('disliked2.png',
                                       width: 22,
                                       height: 22)
-                                  : Image.asset('assets/images/disliked1.png',
-                                      package: 'ai_chat_assistant',
+                                  : AssetsUtil.getImageWidget('disliked1.png',
                                       width: 22,
                                       height: 22)),
                         ),
diff --git a/lib/widgets/chat_footer.dart b/lib/widgets/chat_footer.dart
index e0d969d..71b013a 100644
--- a/lib/widgets/chat_footer.dart
+++ b/lib/widgets/chat_footer.dart
@@ -5,6 +5,7 @@ import 'package:provider/provider.dart';
 import '../services/message_service.dart';
 import '../utils/common_util.dart';
 import 'large_audio_wave.dart';
+import '../utils/assets_util.dart';
 
 class ChatFooter extends StatefulWidget {
   final VoidCallback? onClear;
@@ -48,8 +49,8 @@ class _ChatFooterState extends State<ChatFooter>
             padding: const EdgeInsets.only(left: 16, bottom: 12),
             child: GestureDetector(
               onTap: widget.onClear,
-              child: Image.asset(
-                'assets/images/delete.png',package: 'ai_chat_assistant',
+              child: AssetsUtil.getImageWidget(
+                'delete.png',
                 width: 24,
                 height: 24,
               ),
@@ -138,8 +139,8 @@ class _ChatFooterState extends State<ChatFooter>
               onTap: () {
 
               },
-              child: Image.asset(
-                'assets/images/keyboard_mini.png',package: 'ai_chat_assistant',
+              child: AssetsUtil.getImageWidget(
+                'keyboard_mini.png',
                 width: 24,
                 height: 24,
               ),
diff --git a/lib/widgets/floating_icon.dart b/lib/widgets/floating_icon.dart
index d83c1ed..a5bd55f 100644
--- a/lib/widgets/floating_icon.dart
+++ b/lib/widgets/floating_icon.dart
@@ -6,6 +6,7 @@ import '../screens/part_screen.dart';
 import 'floating_icon_with_wave.dart';
 import 'dart:async';
 import 'package:basic_intl/intl.dart';
+import '../utils/assets_util.dart';
 
 class FloatingIcon extends StatefulWidget {
   const FloatingIcon({super.key});
@@ -35,13 +36,13 @@ class _FloatingIconState extends State<FloatingIcon> with TickerProviderStateMix
   // 图片切换相关
   int _imageIndex = 0;
   late final List<String> _iconImages = [
-    'assets/images/ai1_hd.png',
-    'assets/images/ai0_hd.png',
+    'ai1_hd.png',
+    'ai0_hd.png',
   ];
 
   late final List<String> _iconImagesEn = [
-    'assets/images/ai1_hd_en.png',
-    'assets/images/ai0_hd_en.png',
+    'ai1_hd_en.png',
+    'ai0_hd_en.png',
   ];
 
   @override
@@ -96,7 +97,7 @@ class _FloatingIconState extends State<FloatingIcon> with TickerProviderStateMix
   // 显示全屏界面
   void _showFullScreen() async {
     _hidePartScreen();
-    final messageService = context.read<MessageService>();
+    final messageService = MessageService.instance;
 
     await Navigator.of(context).push(
       MaterialPageRoute(
@@ -170,7 +171,10 @@ class _FloatingIconState extends State<FloatingIcon> with TickerProviderStateMix
     //   }
     // });
 
-    return ChangeNotifierProvider(create: (_) => MessageService(), child: _buildFloatingIcon());
+    return ChangeNotifierProvider.value(
+      value: MessageService.instance, 
+      child: _buildFloatingIcon(),
+    );
   }
 
   Widget _buildFloatingIcon() {
@@ -249,13 +253,12 @@ class _FloatingIconState extends State<FloatingIcon> with TickerProviderStateMix
                           iconSize: iconSize,
                           waveColor: Colors.white,
                         )
-                      : Image.asset(
+                      : AssetsUtil.getImageWidget(
                           Intl.getCurrentLocale().startsWith('zh')
                               ? _iconImages[_imageIndex]
                               : _iconImagesEn[_imageIndex],
                           width: iconSize,
                           height: iconSize,
-                          package: 'ai_chat_assistant',
                         ),
                 ),
               );
diff --git a/lib/widgets/floating_icon_with_wave.dart b/lib/widgets/floating_icon_with_wave.dart
index f4764a4..18c20ff 100644
--- a/lib/widgets/floating_icon_with_wave.dart
+++ b/lib/widgets/floating_icon_with_wave.dart
@@ -32,12 +32,11 @@ class FloatingIconWithWave extends StatelessWidget {
         alignment: Alignment.center,
         children: [
           // 背景图片
-          Image.asset(
-            'assets/images/ai_hd_clean.png',
+          AssetsUtil.getImageWidget(
+            'ai_hd_clean.png',
             width: iconSize,
             height: iconSize,
             fit: BoxFit.contain,
-            package: AssetsUtil.packageName
           ),
           // 声波动画，距离底部13px的位置
           Positioned(
diff --git a/lib/widgets/rotating_image.dart b/lib/widgets/rotating_image.dart
index f383e2f..b793df9 100644
--- a/lib/widgets/rotating_image.dart
+++ b/lib/widgets/rotating_image.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import '../utils/assets_util.dart';
 
 class RotatingImage extends StatefulWidget {
   final String imagePath;
@@ -42,11 +43,10 @@ class _RotatingImageState extends State<RotatingImage>
   Widget build(BuildContext context) {
     return RotationTransition(
       turns: _controller,
-      child: Image.asset(
+      child: AssetsUtil.getImageWidget(
         widget.imagePath,
         width: widget.size,
         height: widget.size,
-        package: widget.package, // 使用传入的package参数
       ),
     );
   }