部分界面调整，把底部的播放控件完整前置

lib/pages/home_page.dart

@@ -688,9 +688,6 @@ class _HomePageState extends State<HomePage> {
               ],
             ),
           ),
-
-          // ---- 底部 MiniPlayer ----
-          if (showMiniBar) const MiniPlayerBar(),
         ],
       ),
     );

lib/pages/playlist_page.dart

@@ -0,0 +1,151 @@
+// lib/pages/playlist_page.dart
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../services/audio_service.dart';
+
+class PlaylistPage extends StatelessWidget {
+  const PlaylistPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final service = context.watch<AudioService>();
+    final queue = service.queue;
+    final currentIndex = service.currentIndex;
+
+    return Scaffold(
+      backgroundColor: const Color(0xFF0E1211),
+      appBar: AppBar(
+        title: const Text(
+          '播放列表',
+          style: TextStyle(
+            color: Colors.white,
+            fontSize: 18,
+            fontWeight: FontWeight.w500,
+          ),
+        ),
+        backgroundColor: Colors.transparent,
+        elevation: 0,
+        foregroundColor: Colors.white,
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back_ios_new),
+          onPressed: () => Navigator.pop(context),
+        ),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.clear_all, color: Colors.white54),
+            onPressed: () {
+              showDialog(
+                context: context,
+                builder: (context) => AlertDialog(
+                  backgroundColor: const Color(0xFF1A1F1E),
+                  title: const Text(
+                    '清空播放列表',
+                    style: TextStyle(color: Colors.white),
+                  ),
+                  content: const Text(
+                    '确定要清空当前播放列表吗？',
+                    style: TextStyle(color: Colors.grey),
+                  ),
+                  actions: [
+                    TextButton(
+                      onPressed: () => Navigator.pop(context),
+                      child: const Text('取消'),
+                    ),
+                    TextButton(
+                      onPressed: () {
+                        service.clearQueue();
+                        Navigator.pop(context);
+                        Navigator.pop(context);
+                      },
+                      child: const Text(
+                        '清空',
+                        style: TextStyle(color: Colors.red),
+                      ),
+                    ),
+                  ],
+                ),
+              );
+            },
+          ),
+        ],
+      ),
+      body: queue.isEmpty
+          ? const Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Icon(Icons.playlist_play, size: 48, color: Colors.grey),
+                  SizedBox(height: 16),
+                  Text(
+                    '播放列表为空',
+                    style: TextStyle(color: Colors.grey),
+                  ),
+                ],
+              ),
+            )
+          : ListView.builder(
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+              itemCount: queue.length,
+              itemBuilder: (context, index) {
+                final song = queue[index];
+                final isCurrent = index == currentIndex;
+
+                return ListTile(
+                  contentPadding: const EdgeInsets.symmetric(
+                    horizontal: 8,
+                    vertical: 4,
+                  ),
+                  leading: Icon(
+                    isCurrent ? Icons.play_arrow : Icons.music_note,
+                    color:
+                        isCurrent ? const Color(0xFFB8D4D0) : Colors.grey[600],
+                    size: 24,
+                  ),
+                  title: Text(
+                    song.title,
+                    style: TextStyle(
+                      fontSize: 16,
+                      fontWeight: isCurrent ? FontWeight.w600 : FontWeight.w400,
+                      color: isCurrent ? Colors.white : Colors.grey[300],
+                    ),
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                  subtitle: Text(
+                    song.artist,
+                    style: TextStyle(
+                      fontSize: 13,
+                      color: isCurrent ? Colors.grey[400] : Colors.grey[600],
+                    ),
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                  trailing: isCurrent
+                      ? Container(
+                          padding: const EdgeInsets.symmetric(
+                            horizontal: 8,
+                            vertical: 2,
+                          ),
+                          decoration: BoxDecoration(
+                            color: const Color(0xFFB8D4D0).withOpacity(0.2),
+                            borderRadius: BorderRadius.circular(4),
+                          ),
+                          child: const Text(
+                            '正在播放',
+                            style: TextStyle(
+                              fontSize: 10,
+                              color: Color(0xFFB8D4D0),
+                            ),
+                          ),
+                        )
+                      : null,
+                  onTap: () {
+                    service.setQueue(queue, startIndex: index);
+                    Navigator.pop(context);
+                  },
+                );
+              },
+            ),
+    );
+  }
+}

lib/pages/webdav_file_list_page.dart

@@ -1,11 +1,10 @@
 // lib/pages/webdav_file_list_page.dart
+import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/webdav_service.dart';
 import '../services/playback_service.dart';
 import '../services/audio_service.dart';
-import 'dart:async';
-import 'dart:convert';
 
 class WebDAVFileListPage extends StatefulWidget {
   final String currentPath;
@@ -27,7 +26,7 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     try {
       return Uri.decodeComponent(input);
     } catch (_) {
-      return input; // 解码失败时返回原始字符串
+      return input;
     }
   }
 
@@ -38,6 +37,9 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     _loadDirectory();
   }
 
+  // ============================================================
+  // 加载目录
+  // ============================================================
   Future<void> _loadDirectory() async {
     setState(() {
       _isLoading = true;
@@ -59,6 +61,9 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     }
   }
 
+  // ============================================================
+  // 进入子目录
+  // ============================================================
   void _enterDirectory(WebDAVItem dir) {
     Navigator.push(
       context,
@@ -68,19 +73,19 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     );
   }
 
+  // ============================================================
+  // ⭐ 核心：播放歌曲 + 自动构建队列
+  // ============================================================
   void _playSong(WebDAVItem file) async {
     try {
-      final url = WebDAVService.instance.getFileUrl(file.path);
+      // 1. 获取当前目录所有音乐文件（过滤掉目录）
+      final musicFiles = _items.where((item) => !item.isDirectory).toList();
 
-      // ✅ 动态获取认证头（从 SharedPreferences 读取）
-      final headers = await WebDAVService.instance.getAuthHeaders();
-
-      if (headers.isEmpty) {
-        print('⚠️ 未获取到认证头，请检查 WebDAV 登录状态');
+      if (musicFiles.isEmpty) {
         if (mounted) {
           ScaffoldMessenger.of(context).showSnackBar(
             const SnackBar(
-              content: Text('请先登录 WebDAV'),
+              content: Text('当前目录没有音乐文件'),
               backgroundColor: Colors.orange,
             ),
           );
@@ -88,18 +93,57 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
         return;
       }
 
-      print('🎵 [文件列表] 播放 URL: $url');
-      print('📋 [文件列表] 认证头已设置: ${headers.keys}');
+      // 2. 获取认证头
+      final headers = await WebDAVService.instance.getAuthHeaders();
 
-      final song = Song(
-        id: file.path,
-        title: file.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
-        artist: '未知艺术家',
-        url: url,
-      );
-      context.read<AudioService>().playSong(song);
+      // 3. 构建播放队列（所有音乐文件）
+      final queue = musicFiles.map((item) {
+        final itemUrl = WebDAVService.instance.getFileUrl(item.path);
+        return Song(
+          id: item.path,
+          title: item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
+          artist: '未知艺术家',
+          url: itemUrl,
+        );
+      }).toList();
 
-      await PlaybackService().play(url, headers: headers);
+      // 4. 找到当前点击歌曲在队列中的位置
+      final startIndex = queue.indexWhere((s) => s.id == file.path);
+      if (startIndex == -1) {
+        // 极端情况：队列构建有问题，退化为单曲播放
+        final url = WebDAVService.instance.getFileUrl(file.path);
+        final song = Song(
+          id: file.path,
+          title: file.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
+          artist: '未知艺术家',
+          url: url,
+        );
+        context.read<AudioService>().setQueue([song], startIndex: 0);
+        await PlaybackService().play(url, headers: headers);
+        return;
+      }
+
+      // 5. 设置队列并播放
+      final audioService = context.read<AudioService>();
+      audioService.setQueue(queue, startIndex: startIndex);
+
+      // 6. 播放（AudioService 内部已经调用了 PlaybackService，但为了确保认证头传递）
+      // 这里再显式调用一下，确保认证头正确
+      final targetUrl = queue[startIndex].url!;
+      await PlaybackService().play(targetUrl, headers: headers);
+
+      // 7. 更新 AudioService 的播放状态（确保 UI 同步）
+      // setQueue 已经调用了 _playCurrent()，所以这里不需要重复调用
+
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text('正在播放: ${file.name}'),
+            backgroundColor: const Color(0xFF4CAF50),
+            duration: const Duration(seconds: 1),
+          ),
+        );
+      }
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
@@ -112,6 +156,67 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     }
   }
 
+  // ============================================================
+  // 全部播放（从第一首开始）
+  // ============================================================
+  void _playAll() async {
+    try {
+      final musicFiles = _items.where((item) => !item.isDirectory).toList();
+
+      if (musicFiles.isEmpty) {
+        if (mounted) {
+          ScaffoldMessenger.of(context).showSnackBar(
+            const SnackBar(
+              content: Text('当前目录没有音乐文件'),
+              backgroundColor: Colors.orange,
+            ),
+          );
+        }
+        return;
+      }
+
+      final headers = await WebDAVService.instance.getAuthHeaders();
+
+      final queue = musicFiles.map((item) {
+        final itemUrl = WebDAVService.instance.getFileUrl(item.path);
+        return Song(
+          id: item.path,
+          title: item.name.replaceAll(RegExp(r'\.[^.]*$'), ''),
+          artist: '未知艺术家',
+          url: itemUrl,
+        );
+      }).toList();
+
+      final audioService = context.read<AudioService>();
+      audioService.setQueue(queue, startIndex: 0);
+
+      final targetUrl = queue[0].url!;
+      await PlaybackService().play(targetUrl, headers: headers);
+
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text('开始播放全部 (${queue.length}首)'),
+            backgroundColor: const Color(0xFF4CAF50),
+            duration: const Duration(seconds: 1),
+          ),
+        );
+      }
+    } catch (e) {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text('播放失败: $e'),
+            backgroundColor: Colors.red,
+          ),
+        );
+      }
+    }
+  }
+
+  // ============================================================
+  // 显示路径
+  // ============================================================
   String _getDisplayPath() {
     if (_currentPath == '/' || _currentPath.isEmpty) return '根目录';
 
@@ -123,6 +228,9 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     return '... / ${parts.sublist(parts.length - 2).join(' / ')}';
   }
 
+  // ============================================================
+  // Build
+  // ============================================================
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -140,6 +248,12 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
           onPressed: () => Navigator.pop(context),
         ),
         actions: [
+          // 全部播放按钮
+          IconButton(
+            icon: const Icon(Icons.playlist_play),
+            onPressed: _playAll,
+            tooltip: '全部播放',
+          ),
           IconButton(
             icon: const Icon(Icons.refresh),
             onPressed: _loadDirectory,
@@ -211,6 +325,9 @@ class _WebDAVFileListPageState extends State<WebDAVFileListPage> {
     );
   }
 
+  // ============================================================
+  // 构建列表项
+  // ============================================================
   Widget _buildListItem(WebDAVItem item) {
     final displayName = _safeDecode(item.name);