fix:修正卸载后重新导入了备份数据,因对话记录保存的资源缓存地址不存在而各种报错的相关问题(提示用户重新创建对话)

Author: Sanotsu

README.md

@@ -225,6 +225,7 @@ enum LLModelType {
   - [ ] 测试低成本让少量模型可联网搜索
   - [ ] 对话消息展示的 Markdown 格式结合 LaTeX
   - [ ] AI 助手可编辑某个输入对话的消息，并记录对话分支
+  - [ ] 静默继续流式输出(助手模块切换到其他页面时输出继续而不是终止)
   - [ ] 添加角色卡功能，可少量预设，支持用户自行导入
   - [ ] 一键保存整个对话为 Markdown 文件？
   - [ ] 多 Agent 的群聊、角色扮演？

lib/common/components/tool_widget.dart

@@ -404,6 +404,7 @@ Widget buildImageView(
   // 是否是本地文件地址(暂时没使用到网络地址)
   bool? isFileUrl = false,
   String imagePlaceholder = "请选择图片",
+  String imageErrorHint = "图片异常",
 }) {
   // 如果没有图片数据，直接返回文提示
   if (image == null) {
@@ -444,7 +445,31 @@ Widget buildImageView(
       // 默认显示文件图片
       child: RepaintBoundary(
         child: Center(
-          child: Image(image: imageProvider, fit: BoxFit.scaleDown),
+          child: Image(
+            image: imageProvider,
+            fit: BoxFit.scaleDown,
+            errorBuilder: (context, url, error) => Container(
+              decoration: BoxDecoration(
+                border: Border.all(color: Colors.grey),
+                borderRadius: BorderRadius.circular(10.sp),
+              ),
+              child: Padding(
+                padding: EdgeInsets.all(5.sp),
+                child: Column(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  crossAxisAlignment: CrossAxisAlignment.center,
+                  children: [
+                    Icon(Icons.error, color: Colors.red),
+                    Text(
+                      imageErrorHint,
+                      textAlign: TextAlign.center,
+                      style: TextStyle(color: Colors.red),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          ),
         ),
       ),
     ),

lib/views/brief_ai_assistant/chat/components/chat_message_item.dart

@@ -2,9 +2,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:intl/intl.dart';
+import '../../../../common/components/tool_widget.dart';
 import '../../../../common/constants/constants.dart';
 import '../../../../models/brief_ai_tools/chat_competion/com_cc_state.dart';
-import 'dart:io';
 
 import '../../../../common/components/voice_chat_bubble.dart';
 
@@ -55,14 +55,14 @@ class ChatMessageItem extends StatelessWidget {
             _buildVoicePlayer(),
 
           // 显示图片
-          if (message.imageUrl != null) _buildImage(),
+          if (message.imageUrl != null) _buildImage(context),
         ],
       ),
     );
   }
 
   // 头像消息体旁边，Row布局，显示文本内容没那么宽
-  Widget buildHorizontalAvatar(bool isUser) {
+  Widget buildHorizontalAvatar(bool isUser, BuildContext context) {
     return Container(
       margin: EdgeInsets.all(4.sp),
       child: Row(
@@ -97,7 +97,7 @@ class ChatMessageItem extends StatelessWidget {
                   _buildVoicePlayer(),
 
                 // 显示图片
-                if (message.imageUrl != null) _buildImage(),
+                if (message.imageUrl != null) _buildImage(context),
               ],
             ),
           ),
@@ -384,26 +384,36 @@ class ChatMessageItem extends StatelessWidget {
   }
 
   // 简单的图片预览
-  Widget _buildImage() {
+  Widget _buildImage(BuildContext context) {
     return Container(
       margin: EdgeInsets.only(top: 8.sp),
       child: ClipRRect(
         borderRadius: BorderRadius.circular(8.sp),
-        child: message.imageUrl!.startsWith('http')
-            ? Image.network(
-                message.imageUrl!,
-                width: 0.25.sw,
-                fit: BoxFit.cover,
-                loadingBuilder: (context, child, loadingProgress) {
-                  if (loadingProgress == null) return child;
-                  return Center(child: CircularProgressIndicator());
-                },
-              )
-            : Image.file(
-                File(message.imageUrl!),
-                width: 0.25.sw,
-                fit: BoxFit.cover,
-              ),
+        // child: message.imageUrl!.startsWith('http')
+        //     ? Image.network(
+        //         message.imageUrl!,
+        //         width: 0.25.sw,
+        //         fit: BoxFit.cover,
+        //         loadingBuilder: (context, child, loadingProgress) {
+        //           if (loadingProgress == null) return child;
+        //           return Center(child: CircularProgressIndicator());
+        //         },
+        //       )
+        //     : Image.file(
+        //         File(message.imageUrl!),
+        //         width: 0.25.sw,
+        //         fit: BoxFit.cover,
+        //       ),
+
+        child: SizedBox(
+          width: 0.3.sw,
+          child: buildImageView(
+            message.imageUrl!,
+            context,
+            isFileUrl: true,
+            imageErrorHint: '图片异常，请开启新对话',
+          ),
+        ),
       ),
     );
   }

lib/views/brief_ai_assistant/chat/index.dart

@@ -460,6 +460,10 @@ class _BriefChatScreenState extends State<BriefChatScreen>
     } catch (e) {
       if (!mounted) return;
       commonExceptionDialog(context, "异常提示", "发送消息失败: $e");
+      setState(() {
+        _cancelResponse = null;
+        _isStreaming = false;
+      });
     }
   }
 
@@ -493,6 +497,10 @@ class _BriefChatScreenState extends State<BriefChatScreen>
     } catch (e) {
       if (!mounted) return;
       commonExceptionDialog(context, "异常提示", "重新生成失败: $e");
+      setState(() {
+        _cancelResponse = null;
+        _isStreaming = false;
+      });
     } finally {
       if (mounted) {
         setState(() {