webdav存在自引用问题，现版本修复完成

lib/pages/webdav_file_list_page.dart

@@ -1,9 +1,4 @@
-// ============================================================
-// 文件名: webdav_file_list_page.dart
-// 功能: WebDAV 文件浏览页面，支持文件夹导航和音乐播放
-// 调用方式: Navigator.push(context, MaterialPageRoute(builder: (_) => WebDAVFileListPage()))
-// ============================================================
-
+// lib/pages/webdav_file_list_page.dart
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/webdav_service.dart';
@@ -11,7 +6,6 @@ import '../services/playback_service.dart';
 import '../services/audio_service.dart';
 
 class WebDAVFileListPage extends StatefulWidget {
-  /// 当前浏览路径，默认为根目录 '/'
   final String currentPath;
 
   const WebDAVFileListPage({super.key, this.currentPath = '/'});
@@ -26,6 +20,15 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
   String _errorMessage = '';
   String _currentPath = '/';
 
+  // 安全解码
+  String _safeDecode(String input) {
+    try {
+      return Uri.decodeComponent(input);
+    } catch (_) {
+      return input; // 解码失败时返回原始字符串
+    }
+  }
+
   @override
   void initState() {
     super.initState();
@@ -33,9 +36,6 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     _loadDirectory();
   }
 
-  // -------------------------------------------------------------
-  // 加载当前目录内容
-  // -------------------------------------------------------------
   Future<void> _loadDirectory() async {
     setState(() {
       _isLoading = true;
@@ -57,9 +57,6 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     }
   }
 
-  // -------------------------------------------------------------
-  // 进入子目录
-  // -------------------------------------------------------------
   void _enterDirectory(WebDAVItem dir) {
     Navigator.push(
       context,
@@ -69,9 +66,6 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     );
   }
 
-  // -------------------------------------------------------------
-  // 播放音乐文件
-  // -------------------------------------------------------------
   void _playSong(WebDAVItem file) async {
     try {
       final url = WebDAVService.instance.getFileUrl(file.path);
@@ -79,13 +73,11 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
 
       final song = Song(
         id: file.path,
-        title: file.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
+        title: _safeDecode(file.name).replaceAll(RegExp(r'\.[^.]*$'), ''),
         artist: '未知艺术家',
         url: url,
       );
       context.read<AudioService>().playSong(song);
-
-      // ✅ 移除 SnackBar，直接显示 MiniPlayer
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
@@ -98,12 +90,13 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     }
   }
 
-  // -------------------------------------------------------------
-  // 构建面包屑路径显示（只显示最后两级，避免过长）
-  // -------------------------------------------------------------
   String _getDisplayPath() {
-    if (_currentPath == '/') return '根目录';
-    final parts = _currentPath.split('/').where((s) => s.isNotEmpty).toList();
+    if (_currentPath == '/' || _currentPath.isEmpty) return '根目录';
+
+    final decoded = _safeDecode(_currentPath);
+    final parts = decoded.split('/').where((s) => s.isNotEmpty).toList();
+
+    if (parts.isEmpty) return '根目录';
     if (parts.length <= 2) return parts.join(' / ');
     return '... / ${parts.sublist(parts.length - 2).join(' / ')}';
   }
@@ -132,85 +125,74 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
           ),
         ],
       ),
-      body: _buildBody(),
-    );
-  }
-
-  // -------------------------------------------------------------
-  // 构建主体内容
-  // -------------------------------------------------------------
-  Widget _buildBody() {
-    if (_isLoading) {
-      return const Center(
-        child: CircularProgressIndicator(
-          color: Color(0xFFB8D4D0),
-        ),
-      );
-    }
-
-    if (_errorMessage.isNotEmpty) {
-      return Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Icon(Icons.error_outline, size: 48, color: Colors.grey[600]),
-            const SizedBox(height: 16),
-            Text(
-              _errorMessage,
-              style: TextStyle(color: Colors.grey[400]),
-              textAlign: TextAlign.center,
-            ),
-            const SizedBox(height: 16),
-            ElevatedButton(
-              onPressed: _loadDirectory,
-              style: ElevatedButton.styleFrom(
-                backgroundColor: const Color(0xFFB8D4D0),
-                foregroundColor: Colors.black87,
+      body: _isLoading
+          ? const Center(
+              child: CircularProgressIndicator(
+                color: Color(0xFFB8D4D0),
               ),
-              child: const Text('重试'),
-            ),
-          ],
-        ),
-      );
-    }
-
-    if (_items.isEmpty) {
-      return Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: [
-            Icon(Icons.folder_open, size: 48, color: Colors.grey[600]),
-            const SizedBox(height: 16),
-            Text(
-              '此目录为空',
-              style: TextStyle(color: Colors.grey[400]),
-            ),
-            const SizedBox(height: 8),
-            Text(
-              '支持格式: MP3, FLAC, M4A, APE, WAV, OPUS',
-              style: TextStyle(color: Colors.grey[600], fontSize: 12),
-            ),
-          ],
-        ),
-      );
-    }
-
-    return ListView.builder(
-      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
-      itemCount: _items.length,
-      itemBuilder: (context, index) {
-        final item = _items[index];
-        return _buildListItem(item);
-      },
+            )
+          : _errorMessage.isNotEmpty
+              ? Center(
+                  child: Column(
+                    mainAxisAlignment: MainAxisAlignment.center,
+                    children: [
+                      Icon(Icons.error_outline,
+                          size: 48, color: Colors.grey[600]),
+                      const SizedBox(height: 16),
+                      Text(
+                        _errorMessage,
+                        style: TextStyle(color: Colors.grey[400]),
+                        textAlign: TextAlign.center,
+                      ),
+                      const SizedBox(height: 16),
+                      ElevatedButton(
+                        onPressed: _loadDirectory,
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: const Color(0xFFB8D4D0),
+                          foregroundColor: Colors.black87,
+                        ),
+                        child: const Text('重试'),
+                      ),
+                    ],
+                  ),
+                )
+              : _items.isEmpty
+                  ? Center(
+                      child: Column(
+                        mainAxisAlignment: MainAxisAlignment.center,
+                        children: [
+                          Icon(Icons.folder_open,
+                              size: 48, color: Colors.grey[600]),
+                          const SizedBox(height: 16),
+                          Text(
+                            '此目录为空',
+                            style: TextStyle(color: Colors.grey[400]),
+                          ),
+                          const SizedBox(height: 8),
+                          Text(
+                            '支持格式: MP3, FLAC, M4A, APE, WAV, OPUS',
+                            style: TextStyle(
+                                color: Colors.grey[600], fontSize: 12),
+                          ),
+                        ],
+                      ),
+                    )
+                  : ListView.builder(
+                      padding: const EdgeInsets.symmetric(
+                          horizontal: 16, vertical: 8),
+                      itemCount: _items.length,
+                      itemBuilder: (context, index) {
+                        final item = _items[index];
+                        return _buildListItem(item);
+                      },
+                    ),
     );
   }
 
-  // -------------------------------------------------------------
-  // 构建单个列表项（区分目录和文件）
-  // -------------------------------------------------------------
   Widget _buildListItem(WebDAVItem item) {
+    final displayName = _safeDecode(item.name);
+
     if (item.isDirectory) {
-      // ---------- 目录项 ----------
       return ListTile(
         contentPadding: const EdgeInsets.symmetric(horizontal: 4, vertical: 2),
         leading: const Icon(
@@ -219,7 +201,7 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
           size: 32,
         ),
         title: Text(
-          item.name,
+          displayName,
           style: const TextStyle(
             fontSize: 16,
             fontWeight: FontWeight.w500,
@@ -242,7 +224,6 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
         onTap: () => _enterDirectory(item),
       );
     } else {
-      // ---------- 音乐文件项 ----------
       final sizeStr = item.size != null
           ? '${(item.size! / 1024 / 1024).toStringAsFixed(1)} MB'
           : '';
@@ -254,7 +235,7 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
           size: 28,
         ),
         title: Text(
-          item.name,
+          displayName,
           style: const TextStyle(
             fontSize: 16,
             fontWeight: FontWeight.w400,