还在尝试跑通播放状态

lib/pages/home_page.dart

@@ -8,6 +8,8 @@ import '../widgets/mini_player_bar.dart';
 import '../widgets/magnetic_scroll_physics.dart';
 import 'webdav_setup_page.dart';
 import 'webdav_file_list_page.dart';
+import 'dart:async';
+import 'dart:convert';
 
 // ==================================================
 // 歌曲数据模型
@@ -174,8 +176,6 @@ class _HomePageState extends State<HomePage> {
   // 媒体库透明度（快速淡出）
   double get _mediaOpacity {
     final p = _progress;
-    // 0% ~ 30%: 1.0 → 0.05
-    // 30% ~ 100%: 0.05 → 0
     if (p <= 0.3) {
       return 1.0 - (p / 0.3) * 0.95;
     } else {
@@ -251,17 +251,37 @@ class _HomePageState extends State<HomePage> {
     }
   }
 
-  // ========== 播放 ==========
+  // ============================================================
+  // ⭐ 核心：播放方法（UI 优先响应，然后真正播放）
+  // ============================================================
   void _playSong(SongItem song) async {
     try {
       final url = WebDAVService.instance.getFileUrl(song.path);
-      await PlaybackService().play(url);
-      context.read<AudioService>().playSong(Song(
-            id: song.path,
-            title: song.displayTitle,
-            artist: song.displaySubtitle,
-            url: url,
-          ));
+
+      // ✅ 硬编码认证头测试
+      final testHeaders = {
+        'Authorization':
+            'Basic ' + base64Encode(utf8.encode('test-user-1:Lxh10020328?')),
+      };
+
+      print('🎵 测试 URL: $url');
+      print('📋 测试认证头: ${testHeaders.keys}');
+
+      final audioService = context.read<AudioService>();
+      audioService.playSong(Song(
+        id: song.path,
+        title: song.displayTitle,
+        artist: song.displaySubtitle,
+        url: url,
+      ));
+
+      // 获取认证头
+      final headers = await WebDAVService.instance.getAuthHeaders();
+      print('📋 认证头数量: ${headers.length}');
+      print('📋 认证头内容: $headers');
+
+      // 播放
+      await PlaybackService().play(url, headers: headers);
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(