现在正在修复首次启动点击跳曲问题与顺序播放的跳曲问题

lib/controllers/playback_controller.dart

@@ -1,4 +1,5 @@
 // lib/controllers/playback_controller.dart
+import 'package:flutter/foundation.dart'; // ⭐ 添加
 import '../services/audio_service.dart';
 import '../services/webdav_service.dart';
 import '../database/song_database.dart';
@@ -12,27 +13,43 @@ class PlaybackController {
   final SongDatabase _db = SongDatabase();
 
   // ════════════════════════════════════════════════════════════
-  // 播放 WebDAV 目录中的歌曲（从点击歌曲开始）
+  // 从 WebDAV 目录播放（点击歌曲）
   // ════════════════════════════════════════════════════════════
   Future<void> playFromWebDAV({
     required String directoryPath,
     required String clickedSongPath,
     required List<WebDAVItem> allItems,
   }) async {
-    final musicFiles = allItems.where((item) => !item.isDirectory).toList();
+    // 1. 过滤出所有音乐文件（去掉目录）
+    final musicFiles = allItems.where((item) => !item.isDirectory).toList()
+      ..sort((a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()));
+
     if (musicFiles.isEmpty) return;
 
+    // 2. 调试信息
+    debugPrint('🎯 [PlaybackController] musicFiles:');
+    for (int i = 0; i < musicFiles.length; i++) {
+      debugPrint('  $i: ${musicFiles[i].path}');
+    }
+    debugPrint('🎯 [PlaybackController] clickedSongPath: $clickedSongPath');
+
+    // 3. 找到点击歌曲在音乐文件列表中的位置
     final clickedIndex =
         musicFiles.indexWhere((item) => item.path == clickedSongPath);
+    debugPrint('🎯 [PlaybackController] clickedIndex: $clickedIndex');
+
     if (clickedIndex == -1) {
+      debugPrint(
+          '⚠️ [PlaybackController] clicked song not found, fallback to single play');
       await _playSingleSong(clickedSongPath);
       return;
     }
 
+    // 4. 构建 Song 队列
     final queue = await _buildSongQueue(musicFiles);
 
+    // 5. 应用播放模式
     final playMode = _audioService.playMode;
-    // ⭐ 修复：显式指定类型
     List<Song> finalQueue = List<Song>.from(queue);
     int startIndex = clickedIndex;
 
@@ -43,23 +60,27 @@ class PlaybackController {
       finalQueue = shuffled;
     }
 
+    debugPrint(
+        '🎯 [PlaybackController] finalQueue length: ${finalQueue.length}, startIndex: $startIndex');
+
     _audioService.setQueue(finalQueue, startIndex: startIndex);
   }
 
   // ════════════════════════════════════════════════════════════
-  // 播放整个目录（从第一首开始）
+  // 从 WebDAV 目录播放（全部播放）
   // ════════════════════════════════════════════════════════════
   Future<void> playAllFromWebDAV({
     required String directoryPath,
     required List<WebDAVItem> allItems,
   }) async {
-    final musicFiles = allItems.where((item) => !item.isDirectory).toList();
+    final musicFiles = allItems.where((item) => !item.isDirectory).toList()
+      ..sort((a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()));
+
     if (musicFiles.isEmpty) return;
 
     final queue = await _buildSongQueue(musicFiles);
 
     final playMode = _audioService.playMode;
-    // ⭐ 修复：显式指定类型
     List<Song> finalQueue = List<Song>.from(queue);
     if (playMode == PlayMode.shuffle) {
       finalQueue = List<Song>.from(queue)..shuffle();
@@ -69,9 +90,10 @@ class PlaybackController {
   }
 
   // ════════════════════════════════════════════════════════════
-  // 播放单曲（fallback）
+  // 单曲播放（fallback）
   // ════════════════════════════════════════════════════════════
   Future<void> _playSingleSong(String songPath) async {
+    debugPrint('🎯 [PlaybackController] _playSingleSong: $songPath');
     final url = WebDAVService.instance.getFileUrl(songPath);
     final dbSong = await _db.getSongByPath(songPath);
     final song = Song(
@@ -85,7 +107,7 @@ class PlaybackController {
   }
 
   // ════════════════════════════════════════════════════════════
-  // 辅助方法：从音乐文件列表构建 Song 队列
+  // 构建 Song 队列
   // ════════════════════════════════════════════════════════════
   Future<List<Song>> _buildSongQueue(List<WebDAVItem> musicFiles) async {
     final queue = <Song>[];
@@ -113,19 +135,10 @@ class PlaybackController {
   }
 
   // ════════════════════════════════════════════════════════════
-  // 播放控制（透传到 AudioService）
+  // 播放控制透传
   // ════════════════════════════════════════════════════════════
-  void next() {
-    _audioService.next();
-  }
-
-  void previous() {
-    _audioService.previous();
-  }
-
-  void togglePlayMode() {
-    _audioService.togglePlayMode();
-  }
-
+  void next() => _audioService.next();
+  void previous() => _audioService.previous();
+  void togglePlayMode() => _audioService.togglePlayMode();
   PlayMode get playMode => _audioService.playMode;
 }