通知中心封面图显示

部分界面的信息更新
缓存系统初步引入
即将进入播放列表更新

android/app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    <!-- 权限不变 -->
+    package="com.lxh.qingting_player">
+
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
@@ -8,20 +9,20 @@
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 
     <application
-        android:label="清听"
         android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher"
+        android:label="清听"
         android:usesCleartextTraffic="true"
         android:foregroundServiceType="mediaPlayback">
 
         <activity
             android:name=".MainActivity"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:exported="true"
+            android:hardwareAccelerated="true"
             android:launchMode="singleTop"
             android:taskAffinity=""
             android:theme="@style/LaunchTheme"
-            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-            android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
             <meta-data
                 android:name="io.flutter.embedding.android.NormalTheme"
@@ -32,20 +33,18 @@
             </intent-filter>
         </activity>
 
-        <!-- ⭐ 关键：AudioService 必须同时声明 MediaBrowserService 和 MEDIA_BUTTON -->
+        <!-- AudioService -->
         <service
             android:name="com.ryanheise.audioservice.AudioService"
-            android:foregroundServiceType="mediaPlayback"
+            android:exported="true"
-            android:exported="true">
+            android:foregroundServiceType="mediaPlayback">
             <intent-filter>
-                <!-- 媒体浏览器服务（MediaButtonReceiver 需要） -->
                 <action android:name="android.media.browse.MediaBrowserService" />
-                <!-- 媒体按钮（通知栏、蓝牙、耳机按键） -->
                 <action android:name="android.intent.action.MEDIA_BUTTON" />
             </intent-filter>
         </service>
 
-        <!-- ⭐ MediaButtonReceiver 接收系统媒体按钮事件 -->
+        <!-- MediaButtonReceiver -->
         <receiver
             android:name="com.ryanheise.audioservice.MediaButtonReceiver"
             android:exported="true">
@@ -54,6 +53,17 @@
             </intent-filter>
         </receiver>
 
+        <!-- FileProvider for artwork -->
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
@@ -65,4 +75,5 @@
             <data android:mimeType="text/plain" />
         </intent>
     </queries>
+
 </manifest>

android/app/src/main/kotlin/com/example/qt_player/MainActivity.kt

@@ -3,9 +3,50 @@ package com.lxh.qingting_player
 import android.os.Build
 import android.os.Bundle
 import android.util.Log
-import com.ryanheise.audioservice.AudioServiceActivity  // ⭐ 改用这个
+import androidx.core.content.FileProvider
+import com.ryanheise.audioservice.AudioServiceActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+import java.io.File
 
-class MainActivity : AudioServiceActivity() {  // ⭐ 继承 AudioServiceActivity
+class MainActivity : AudioServiceActivity() {
+
+    private val CHANNEL = "com.lxh.qingting_player/file_provider"
+
+    // ⭐ 关键：注册 MethodChannel
+    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL)
+            .setMethodCallHandler { call, result ->
+                if (call.method == "getContentUri") {
+                    val path = call.argument<String>("path")
+                    if (path != null && path.isNotEmpty()) {
+                        try {
+                            val file = File(path)
+                            if (!file.exists()) {
+                                result.error("FILE_NOT_FOUND", "File does not exist: $path", null)
+                                return@setMethodCallHandler
+                            }
+                            val uri = FileProvider.getUriForFile(
+                                this,
+                                "${packageName}.fileprovider",
+                                file
+                            )
+                            Log.d("QTPlayer", "📢 [FileProvider] content URI: $uri")
+                            result.success(uri.toString())
+                        } catch (e: Exception) {
+                            Log.e("QTPlayer", "❌ [FileProvider] error: ${e.message}")
+                            result.error("ERROR", e.message, null)
+                        }
+                    } else {
+                        result.error("INVALID_PATH", "path is null or empty", null)
+                    }
+                } else {
+                    result.notImplemented()
+                }
+            }
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)

android/app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <!-- app_flutter 目录（getApplicationDocumentsDirectory） -->
+    <files-path name="app_flutter" path="../app_flutter/" />
+    <!-- 封面图目录 -->
+    <files-path name="artworks" path="../app_flutter/artworks/" />
+    <!-- 缓存目录 -->
+    <cache-path name="cache" path="." />
+    <!-- 外部文件目录（备用） -->
+    <external-files-path name="external" path="." />
+</paths>

lib/database/song_database.dart

@@ -98,6 +98,18 @@ class SongDatabase {
     );
   }
 
+  // ---- 删除 ----
+  Future<void> deleteSong(String songKey) async {
+    final db = await database;
+    await db.delete('songs', where: 'song_key = ?', whereArgs: [songKey]);
+  }
+
+  Future<void> deleteCache(String songKey) async {
+    final db = await database;
+    await db
+        .delete('metadata_cache', where: 'song_key = ?', whereArgs: [songKey]);
+  }
+
   // ---- 缓存 ----
   Future<void> insertCache(Map<String, dynamic> cache) async {
     final db = await database;

lib/main.dart

@@ -54,10 +54,13 @@ void main() async {
 
   // ⭐ 注册切歌回调：当歌曲切换时，立即更新通知
   AudioService().setOnSongChanged((song) {
+    debugPrint(
+        '📢 [main] song.artwork is ${song.artwork != null ? 'not null' : 'null'}');
     _audioHandler!.updateNotification(
       id: song.id,
       title: song.title,
       artist: song.artist,
+      artwork: song.artwork, // ⭐ 传递封面图
     );
   });
 

lib/metadata/metadata_cache.dart

@@ -16,6 +16,10 @@ class MetadataCache {
     _cache[fileId] = metadata;
   }
 
+  Future<void> remove(String fileId) async {
+    _cache.remove(fileId);
+  }
+
   Future<List<Map<String, dynamic>>> getHistory(String artist,
       {int limit = 10}) async {
     return [];

lib/metadata/metadata_reader.dart

@@ -1,5 +1,6 @@
 // lib/metadata/metadata_reader.dart
 import 'dart:io';
+import 'dart:typed_data';
 import 'package:flutter/foundation.dart';
 import 'package:audio_metadata_reader/audio_metadata_reader.dart' as amr;
 import 'metadata_model.dart';
@@ -7,13 +8,25 @@ import 'metadata_model.dart';
 class MetadataReader {
   Future<RawMetadata> readRawMetadata(File file) async {
     try {
-      // ⭐ getImage: true 读取封面图
       final meta = amr.readMetadata(file, getImage: true);
 
-      // ⭐ 提取第一张图片
+      debugPrint('📢 [MetadataReader] pictures count: ${meta.pictures.length}');
+
       Uint8List? artwork;
-      if (meta.pictures != null && meta.pictures!.isNotEmpty) {
+      if (meta.pictures.isNotEmpty) {
-        artwork = meta.pictures.first.bytes;
+        try {
+          final pic = meta.pictures.first;
+          // 尝试获取图片数据，兼容不同字段名
+          artwork = (pic as dynamic).bytes ?? (pic as dynamic).data;
+          if (artwork != null) {
+            debugPrint(
+                '📢 [MetadataReader] artwork extracted: ${artwork.length} bytes');
+          }
+        } catch (e) {
+          debugPrint('⚠️ [MetadataReader] artwork extraction failed: $e');
+        }
+      } else {
+        debugPrint('📢 [MetadataReader] no artwork found');
       }
 
       return RawMetadata(

lib/metadata/metadata_service.dart

@@ -1,6 +1,6 @@
 // lib/metadata/metadata_service.dart
-import 'dart:io'; // ⭐ 添加这一行
+import 'dart:io';
-import 'dart:typed_data'; // ⭐ 如果已经有更好
+import 'dart:typed_data';
 import 'package:flutter/foundation.dart';
 import '../database/song_database.dart';
 import 'metadata_model.dart';
@@ -32,6 +32,17 @@ class MetadataService {
     return LocalFileProvider();
   }
 
+  /// 公开给 AudioService 使用（用于清除缓存时获取文件）
+  FileProvider getProviderForUrl(String url) {
+    return _getProvider(url);
+  }
+
+  /// 清除内存缓存
+  Future<void> clearCache(String fileId) async {
+    await _memoryCache.remove(fileId);
+    debugPrint('🗑️ [MetadataService] memory cache cleared: $fileId');
+  }
+
   Future<FinalMetadata> getMetadata({
     required String url,
     required String fileName,
@@ -111,6 +122,8 @@ class MetadataService {
     final history = await _db.getSongsByArtist(normalized.artist, limit: 10);
     final candidate = _normalizer.evaluate(normalized, history);
     final finalMetadata = _normalizer.decide(candidate);
+    debugPrint(
+        '📢 [MetadataService] finalMetadata.artwork is ${finalMetadata.artwork != null ? 'not null (${finalMetadata.artwork!.length} bytes)' : 'null'}');
 
     // 7. 保存封面图到本地
     String? artworkPath;

lib/pages/player_page.dart

@@ -130,9 +130,34 @@ class _PlayerPageState extends State<PlayerPage> {
         ),
         centerTitle: true,
         actions: [
-          IconButton(
+          PopupMenuButton<String>(
             icon: const Icon(Icons.more_vert, color: Colors.white54),
-            onPressed: () {},
+            onSelected: (value) async {
+              if (value == 'clear_cache') {
+                final service = context.read<AudioService>();
+                await service.clearCurrentSongCache();
+                if (mounted) {
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    const SnackBar(
+                      content: Text('缓存已清除，重新加载中...'),
+                      backgroundColor: Colors.orange,
+                    ),
+                  );
+                }
+              }
+            },
+            itemBuilder: (context) => [
+              const PopupMenuItem(
+                value: 'clear_cache',
+                child: Row(
+                  children: [
+                    Icon(Icons.cleaning_services, color: Colors.redAccent),
+                    SizedBox(width: 12),
+                    Text('清除缓存'),
+                  ],
+                ),
+              ),
+            ],
           ),
         ],
       ),

lib/services/audio_player_handler.dart

@@ -1,11 +1,15 @@
 // lib/services/audio_player_handler.dart
-import 'dart:io'; // ⭐ 添加
+import 'dart:io';
-import 'dart:typed_data'; // ⭐ 添加
+import 'dart:typed_data';
 import 'package:flutter/foundation.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:audio_service/audio_service.dart' as audio_service;
 import '../audio/player_controller.dart';
 import '../audio/playback_state_manager.dart';
 import '../services/audio_service.dart';
+import '../utils/file_provider_utils.dart';
+import 'dart:convert';
+import 'package:crypto/crypto.dart';
 
 class AudioPlayerHandler extends audio_service.BaseAudioHandler {
   final PlayerController _player = PlayerController();
@@ -15,18 +19,19 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
   String? _currentTitle;
   String? _currentArtist;
 
-  // ⭐ 唯一的位置变量
   Duration _currentPosition = Duration.zero;
   DateTime _lastPublishTime = DateTime.now();
   static const Duration _publishInterval = Duration(milliseconds: 500);
 
+  // ⭐ 缓存 artwork 文件路径，避免重复写入
+  String? _currentArtworkPath;
+
   AudioPlayerHandler() {
     _player.playingStream.listen((playing) {
       _state.updatePlaying(playing);
       _publishState();
     });
 
-    // ⭐ 位置更新：直接赋值给 _currentPosition
     _player.positionStream.listen((position) {
       _currentPosition = position;
       _state.updatePosition(position);
@@ -34,7 +39,7 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
       final now = DateTime.now();
       if (now.difference(_lastPublishTime) >= _publishInterval) {
         _lastPublishTime = now;
-        _updateMediaItemPosition(position);
+        // ⭐ 只保留 _publishStateOnly()
         _publishStateOnly();
       }
     });
@@ -54,6 +59,7 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
     });
   }
 
+  // ---- 发布状态 ----
   void _publishState() {
     final state = _state.playbackState;
     playbackState.add(audio_service.PlaybackState(
@@ -71,31 +77,112 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
 
   void _publishStateOnly() {
     final current = playbackState.value;
-
     debugPrint(
-      '📡 [publishStateOnly] position=$_currentPosition, playing=${current.playing}',
+        '📡 [publishStateOnly] position=$_currentPosition, playing=${current.playing}');
-    );
 
-    playbackState.add(
+    playbackState.add(audio_service.PlaybackState(
-      audio_service.PlaybackState(
       controls: current.controls.isNotEmpty
           ? current.controls
           : _state.playbackState.controls,
       processingState: _state.playbackState.processingState,
       playing: current.playing,
       androidCompactActionIndices: current.androidCompactActionIndices,
-
+      updatePosition: _currentPosition,
-        // ⭐ 声明支持 seek
+      updateTime: DateTime.now(),
       systemActions: const {
         audio_service.MediaAction.seek,
       },
-
+    ));
-        updatePosition: _currentPosition,
-        updateTime: DateTime.now(),
-      ),
-    );
   }
 
+  // ---- 更新媒体信息 ----
+  void _updateMediaItem({
+    required String id,
+    required String title,
+    required String artist,
+    Duration? duration,
+    Uint8List? artwork,
+  }) {
+    debugPrint(
+        '📢 [handler] _updateMediaItem: artwork is ${artwork != null ? 'not null (${artwork.length} bytes)' : 'null'}');
+    _currentId = id;
+    _currentTitle = title;
+    _currentArtist = artist;
+    final position = _player.position;
+
+    debugPrint('📢 [handler] updateMediaItem: $title - $artist');
+
+    // ⭐ 异步处理 artwork（不阻塞主流程）
+    _handleArtwork(id, artwork).then((artUri) {
+      // 如果 artUri 变化，重新推送 MediaItem
+      final current = mediaItem.value;
+      if (current != null && current.artUri != artUri) {
+        debugPrint('📢 [handler] updating artUri: $artUri');
+        mediaItem.add(audio_service.MediaItem(
+          id: current.id,
+          title: current.title,
+          artist: current.artist,
+          duration: current.duration,
+          artUri: artUri,
+          extras: current.extras,
+        ));
+      }
+    });
+
+    // 先推送不带封面图的 MediaItem（让 UI 尽快显示）
+    mediaItem.add(audio_service.MediaItem(
+      id: id,
+      title: title,
+      artist: artist,
+      duration: duration ?? _player.duration,
+      extras: {'position': position.inMilliseconds},
+    ));
+  }
+
+  /// 处理封面图：保存到本地并生成 content URI
+  Future<Uri?> _handleArtwork(String id, Uint8List? artwork) async {
+    if (artwork == null || artwork.isEmpty) {
+      _currentArtworkPath = null;
+      return null;
+    }
+
+    try {
+      final dir = await getApplicationDocumentsDirectory();
+      final artworkDir = Directory('${dir.path}/artworks');
+      if (!await artworkDir.exists()) {
+        await artworkDir.create(recursive: true);
+      }
+
+      // 使用 md5 生成安全的文件名
+      final bytes = utf8.encode(id);
+      final digest = md5.convert(bytes);
+      final fileName = '$digest.jpg';
+      final path = '${artworkDir.path}/$fileName';
+      final file = File(path);
+
+      // 检查文件是否已存在
+      if (await file.exists()) {
+        final existingBytes = await file.readAsBytes();
+        if (existingBytes.length == artwork.length &&
+            existingBytes.hashCode == artwork.hashCode) {
+          _currentArtworkPath = path;
+          return await FileProviderUtils.getContentUri(file);
+        }
+      }
+
+      // 写入新文件
+      await file.writeAsBytes(artwork);
+      _currentArtworkPath = path;
+      debugPrint('📢 [handler] artwork saved: $path');
+
+      return await FileProviderUtils.getContentUri(file);
+    } catch (e) {
+      debugPrint('⚠️ [handler] artwork handling failed: $e');
+      return null;
+    }
+  }
+
+  // ---- 外部接口 ----
   void updateNotification({
     required String id,
     required String title,
@@ -108,66 +195,10 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
       artist: artist,
       artwork: artwork,
     );
+    _publishState();
   }
 
-  void _updateMediaItem({
+  // ---- 控制命令 ----
-    required String id,
-    required String title,
-    required String artist,
-    Duration? duration,
-    Uint8List? artwork,
-  }) {
-    _currentId = id;
-    _currentTitle = title;
-    _currentArtist = artist;
-    final position = _player.position;
-
-    debugPrint('📢 [handler] updateMediaItem: $title - $artist');
-
-    // ⭐ 如果有 artwork，保存为临时文件并设置 artUri
-    Uri? artUri;
-    if (artwork != null && artwork.isNotEmpty) {
-      try {
-        final tempDir = Directory.systemTemp;
-        final artPath = '${tempDir.path}/art_${id.hashCode}.jpg';
-        final artFile = File(artPath);
-        artFile.writeAsBytesSync(artwork);
-        artUri = Uri.file(artPath);
-        debugPrint('📢 [handler] artwork saved: $artPath');
-      } catch (e) {
-        debugPrint('⚠️ [handler] save artwork failed: $e');
-      }
-    }
-
-    mediaItem.add(audio_service.MediaItem(
-      id: id,
-      title: title,
-      artist: artist,
-      duration: duration ?? _player.duration,
-      artUri: artUri,
-      extras: {
-        'position': position.inMilliseconds,
-      },
-    ));
-  }
-
-  void _updateMediaItemPosition(Duration position) {
-    final currentMediaItem = mediaItem.value;
-    if (currentMediaItem != null) {
-      mediaItem.add(audio_service.MediaItem(
-        id: currentMediaItem.id,
-        title: currentMediaItem.title,
-        artist: currentMediaItem.artist,
-        duration: currentMediaItem.duration,
-        artUri: currentMediaItem.artUri,
-        extras: {
-          'position': position.inMilliseconds,
-          ...?currentMediaItem.extras,
-        },
-      ));
-    }
-  }
-
   @override
   Future<void> play() async {
     debugPrint('▶️ [handler] play() called');
@@ -194,7 +225,6 @@ class AudioPlayerHandler extends audio_service.BaseAudioHandler {
     debugPrint('⏩ [handler] seek() called: $position');
     await _player.seek(position);
     _currentPosition = position;
-    _updateMediaItemPosition(position);
     _publishStateOnly();
   }
 

lib/services/audio_service.dart

@@ -1,10 +1,13 @@
 // lib/services/audio_service.dart
 import 'dart:async';
+import 'dart:io';
+import 'dart:typed_data';
 import 'package:flutter/material.dart';
-import 'package:media_kit/media_kit.dart';
+import 'package:path_provider/path_provider.dart';
 import 'playback_service.dart';
 import '../metadata/metadata_service.dart';
-import 'dart:typed_data';
+import '../database/song_database.dart';
+import '../utils/artwork_helper.dart';
 
 enum PlayMode {
   sequential,
@@ -44,7 +47,7 @@ class AudioService extends ChangeNotifier {
   List<int> _shuffledIndices = [];
   int _shuffledIndex = -1;
 
-  // ---- 高频进度（ValueNotifier，不触发全局重建） ----
+  // ---- 高频进度 ----
   final ValueNotifier<Duration> positionNotifier = ValueNotifier(Duration.zero);
   final ValueNotifier<Duration> durationNotifier = ValueNotifier(Duration.zero);
   final ValueNotifier<Duration> bufferedNotifier = ValueNotifier(Duration.zero);
@@ -55,7 +58,6 @@ class AudioService extends ChangeNotifier {
   bool _handlingCompletion = false;
   void Function(Song)? _onSongChanged;
 
-  // ⭐ 防 seek 覆盖标志
   bool _isUserSeeking = false;
 
   // ---- Getter ----
@@ -81,12 +83,10 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---- 注册回调 ----
   void setOnSongChanged(void Function(Song) callback) {
     _onSongChanged = callback;
   }
 
-  // ---- 切换播放模式 ----
   void togglePlayMode() {
     switch (_playMode) {
       case PlayMode.sequential:
@@ -102,7 +102,6 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ---- 设置播放队列 ----
   void setQueue(List<Song> queue, {int startIndex = 0}) {
     if (queue.isEmpty) {
       _clearQueue();
@@ -131,7 +130,6 @@ class AudioService extends ChangeNotifier {
     stopPlay();
   }
 
-  // ---- 播放指定歌曲 ----
   Future<void> playSong(Song song) async {
     if (_queue.isEmpty || _queue[_currentIndex].id != song.id) {
       setQueue([song], startIndex: 0);
@@ -140,7 +138,6 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---- 核心：播放当前歌曲 ----
   void _playCurrent() {
     if (_currentIndex < 0 || _currentIndex >= _queue.length) {
       stopPlay();
@@ -159,13 +156,16 @@ class AudioService extends ChangeNotifier {
 
     PlaybackService().play(song.url!);
 
-    // 延迟同步兜底（解决首次加载时 stream 未推送的问题）
     _syncPlayerStateDelayed();
 
     _loadMetadataForCurrentSong();
   }
 
-  // ---- 加载 metadata ----
+  String _generateSongKey(String url, int fileSize, int modifiedTime) {
+    final raw = '$url|$fileSize|$modifiedTime';
+    return raw.hashCode.toString();
+  }
+
   Future<void> _loadMetadataForCurrentSong() async {
     if (_currentIndex < 0 || _currentIndex >= _queue.length) return;
     final song = _queue[_currentIndex];
@@ -184,12 +184,13 @@ class AudioService extends ChangeNotifier {
           title: metadata.title.isNotEmpty ? metadata.title : song.title,
           artist: metadata.artist.isNotEmpty ? metadata.artist : song.artist,
           url: song.url,
-          artwork: metadata.artwork,
+          artwork: metadata.artwork, // ✅ 已有
-          // ⭐ 如果需要传递 artwork，可以在这里添加字段
         );
         _queue[_currentIndex] = updatedSong;
         _currentSong = updatedSong;
         notifyListeners();
+
+        // ⭐ 传递完整的 updatedSong（包含 artwork）
         _onSongChanged?.call(updatedSong);
       }
     } catch (e) {
@@ -197,7 +198,70 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---- 下一首 ----
+  /// 清除当前歌曲的缓存（metadata + 封面图 + 文件缓存），并强制重新播放
+  Future<void> clearCurrentSongCache() async {
+    if (_currentSong == null) return;
+    final song = _currentSong!;
+    final url = song.url ?? '';
+    if (url.isEmpty) return;
+
+    debugPrint('🗑️ [AudioService] clearing cache for: ${song.title}');
+
+    // 1. 获取当前索引
+    final currentIndex = _currentIndex;
+
+    // 2. 尝试获取文件信息生成 song_key
+    String songKey;
+    try {
+      final provider = MetadataService().getProviderForUrl(url);
+      final file = await provider.getFile(url);
+      if (file != null && await file.exists()) {
+        final stat = await file.stat();
+        songKey = _generateSongKey(
+            url, stat.size, stat.modified.millisecondsSinceEpoch);
+      } else {
+        songKey = url.hashCode.toString();
+      }
+    } catch (e) {
+      songKey = url.hashCode.toString();
+    }
+
+    // 3. 清除 SQLite 记录
+    final db = SongDatabase();
+    await db.deleteSong(songKey);
+    await db.deleteCache(songKey);
+    debugPrint('🗑️ [AudioService] SQLite records deleted: $songKey');
+
+    // 4. 删除封面图
+    await ArtworkHelper.deleteArtwork(songKey);
+    debugPrint('🗑️ [AudioService] artwork deleted');
+
+    // 5. 删除 metadata 临时缓存文件
+    try {
+      final cacheDir = await getTemporaryDirectory();
+      final cachePath = '${cacheDir.path}/metadata_${url.hashCode}.tmp';
+      final cacheFile = File(cachePath);
+      if (await cacheFile.exists()) {
+        await cacheFile.delete();
+        debugPrint('🗑️ [AudioService] temp cache file deleted');
+      }
+    } catch (e) {
+      // 忽略
+    }
+
+    // 6. 清除内存缓存
+    await MetadataService().clearCache(song.id);
+    debugPrint('🗑️ [AudioService] memory cache cleared');
+
+    // 7. 停止并重新播放
+    if (currentIndex >= 0 && currentIndex < _queue.length) {
+      stopPlay();
+      // 确保重新播放同一首歌
+      _playCurrent();
+      debugPrint('🔄 [AudioService] song reloaded');
+    }
+  }
+
   void next() {
     if (_queue.isEmpty) return;
 
@@ -215,7 +279,6 @@ class AudioService extends ChangeNotifier {
     _playCurrent();
   }
 
-  // ---- 上一首 ----
   void previous() {
     if (_queue.isEmpty) return;
 
@@ -241,7 +304,6 @@ class AudioService extends ChangeNotifier {
     _playCurrent();
   }
 
-  // ---- 播放/暂停 ----
   void togglePlay() {
     if (_currentSong == null) return;
 
@@ -252,7 +314,6 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---- 停止播放 ----
   void stopPlay() {
     _currentSong = null;
     _isPlaying = false;
@@ -263,19 +324,16 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ---- 跳转 ----
   void seekTo(Duration position) {
     _isUserSeeking = true;
     PlaybackService().seek(position);
     positionNotifier.value = position;
 
-    // 800ms 后重置标志（覆盖 media_kit 的 positionStream 推送窗口）
     Future.delayed(const Duration(milliseconds: 800), () {
       _isUserSeeking = false;
     });
   }
 
-  // ---- 清空队列 ----
   void clearQueue() {
     _queue.clear();
     _currentIndex = -1;
@@ -285,7 +343,6 @@ class AudioService extends ChangeNotifier {
     notifyListeners();
   }
 
-  // ---- 主动状态同步（供 PlayerPage 调用） ----
   void syncPlayerStateNow() {
     final player = PlaybackService().player;
     final pos = player.state.position;
@@ -306,7 +363,6 @@ class AudioService extends ChangeNotifier {
     }
   }
 
-  // ---- 延迟同步（兜底） ----
   void _syncPlayerStateDelayed() {
     syncPlayerStateNow();
     Future.delayed(const Duration(milliseconds: 200), () {
@@ -317,7 +373,6 @@ class AudioService extends ChangeNotifier {
     });
   }
 
-  // ---- 监听 media_kit 状态 ----
   void _startListening() {
     if (_listening) return;
     _listening = true;
@@ -335,7 +390,6 @@ class AudioService extends ChangeNotifier {
 
     _subscriptions.add(
       player.stream.position.listen((position) {
-        // ⭐ 如果是用户主动 seek，忽略这次推送（避免覆盖）
         if (_isUserSeeking) {
           debugPrint('🎯 [AudioService] positionStream ignored: user seeking');
           return;
@@ -374,7 +428,6 @@ class AudioService extends ChangeNotifier {
     _subscriptions.clear();
   }
 
-  // ---- 防重入的完成事件处理 ----
   void _onPlaybackCompleted() {
     if (_handlingCompletion) {
       debugPrint('⚠️ [service] completed ignored: already handling');

lib/utils/artwork_helper.dart

@@ -2,11 +2,11 @@
 import 'dart:io';
 import 'dart:typed_data';
 import 'package:path_provider/path_provider.dart';
+import 'package:flutter/foundation.dart';
 
 class ArtworkHelper {
   static const String _artworkDir = 'artworks';
 
-  /// 保存封面图到本地
   static Future<String?> saveArtwork(Uint8List data, String songKey) async {
     try {
       final dir = await getApplicationDocumentsDirectory();
@@ -24,7 +24,6 @@ class ArtworkHelper {
     }
   }
 
-  /// 获取封面图文件
   static Future<File?> getArtwork(String songKey) async {
     try {
       final dir = await getApplicationDocumentsDirectory();
@@ -39,7 +38,6 @@ class ArtworkHelper {
     }
   }
 
-  /// 删除封面图
   static Future<void> deleteArtwork(String songKey) async {
     try {
       final dir = await getApplicationDocumentsDirectory();
@@ -47,6 +45,7 @@ class ArtworkHelper {
       final file = File(path);
       if (await file.exists()) {
         await file.delete();
+        debugPrint('🗑️ [ArtworkHelper] deleted artwork: $songKey');
       }
     } catch (e) {
       // ignore

lib/utils/file_provider_utils.dart

@@ -0,0 +1,55 @@
+// lib/utils/file_provider_utils.dart
+import 'dart:io';
+import 'package:flutter/services.dart';
+import 'package:flutter/foundation.dart';
+
+class FileProviderUtils {
+  static const MethodChannel _channel =
+      MethodChannel('com.lxh.qingting_player/file_provider');
+
+  /// 生成 content:// URI（Android only）
+  static Future<Uri?> getContentUri(File file) async {
+    if (!Platform.isAndroid) {
+      // 非 Android 平台直接返回 file:// URI
+      return Uri.file(file.path);
+    }
+
+    try {
+      final uriString = await _channel.invokeMethod('getContentUri', {
+        'path': file.path,
+      });
+      if (uriString is String && uriString.isNotEmpty) {
+        return Uri.parse(uriString);
+      }
+      return Uri.file(file.path);
+    } on PlatformException catch (e) {
+      debugPrint('⚠️ [FileProviderUtils] PlatformException: ${e.message}');
+      return Uri.file(file.path);
+    } catch (e) {
+      debugPrint('⚠️ [FileProviderUtils] Error: $e');
+      return Uri.file(file.path);
+    }
+  }
+
+  /// 检查文件是否存在
+  static Future<bool> fileExists(String path) async {
+    try {
+      final file = File(path);
+      return await file.exists();
+    } catch (e) {
+      return false;
+    }
+  }
+
+  /// 删除文件
+  static Future<void> deleteFile(String path) async {
+    try {
+      final file = File(path);
+      if (await file.exists()) {
+        await file.delete();
+      }
+    } catch (e) {
+      // ignore
+    }
+  }
+}

lib/widgets/global_mini_player.dart

@@ -9,9 +9,8 @@ class GlobalMiniPlayer extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    // ⭐ 用 Selector 只监听 currentSong（低频变化）
+    // ⭐ 使用 Selector 监听完整的 Song 对象（包括 artwork）
     final song = context.select<AudioService, Song?>((s) => s.currentSong);
-    // ⭐ 只监听播放状态（低频变化）
     final isPlaying = context.select<AudioService, bool>((s) => s.isPlaying);
 
     final bottomPadding = MediaQuery.of(context).padding.bottom;
@@ -19,12 +18,13 @@ class GlobalMiniPlayer extends StatelessWidget {
     return Stack(
       clipBehavior: Clip.none,
       children: [
+        // ⭐ 背景高度从 56 改为 60
         Positioned(
           left: 0,
           right: 0,
           bottom: 0,
           child: Container(
-            height: 56 + bottomPadding,
+            height: 60 + bottomPadding,
             color: const Color(0xFF1A1F1E),
           ),
         ),
@@ -37,7 +37,7 @@ class GlobalMiniPlayer extends StatelessWidget {
               bottom: Radius.circular(16),
             ),
             child: Container(
-              height: 56,
+              height: 60, // ⭐ 从 56 改为 60
               color: const Color(0xFF1A1F1E),
               child: Material(
                 color: Colors.transparent,
@@ -52,21 +52,34 @@ class GlobalMiniPlayer extends StatelessWidget {
                   child: Row(
                     children: [
                       const SizedBox(width: 12),
+                      // ⭐ 封面图容器尺寸从 40 改为 44（适配 60px 高度）
                       Container(
-                        width: 40,
+                        width: 44,
-                        height: 40,
+                        height: 44,
                         decoration: BoxDecoration(
+                          borderRadius: BorderRadius.circular(4),
                           color: song != null
                               ? const Color(0xFF2A3332)
                               : Colors.grey[800],
-                          borderRadius: BorderRadius.circular(4),
+                          // ⭐ 如果 song.artwork 存在，显示封面图
+                          image: song?.artwork != null
+                              ? DecorationImage(
+                                  image: MemoryImage(song!.artwork!),
+                                  fit: BoxFit.cover,
+                                )
+                              : null,
                         ),
-                        child: Icon(
+                        child: song?.artwork == null
-                          song != null ? Icons.music_note : Icons.music_off,
+                            ? Icon(
-                          color:
+                                song != null
-                              song != null ? Colors.white38 : Colors.grey[600],
+                                    ? Icons.music_note
+                                    : Icons.music_off,
+                                color: song != null
+                                    ? Colors.white38
+                                    : Colors.grey[600],
                                 size: 20,
-                        ),
+                              )
+                            : null,
                       ),
                       const SizedBox(width: 12),
                       Expanded(

pubspec.lock

@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  android_intent_plus:
+    dependency: "direct main"
+    description:
+      name: android_intent_plus
+      sha256: "2329378af63f49b985cb2e110ac784d08374f1e2b1984be77ba9325b1c8cce11"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "5.3.1"
   archive:
     dependency: transitive
     description:
@@ -114,7 +122,7 @@ packages:
     source: hosted
     version: "1.19.1"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf

pubspec.yaml

@@ -44,6 +44,8 @@ dependencies:
   audio_metadata_reader: ^1.7.1
   path_provider: ^2.1.0
   path: ^1.9.0
+  android_intent_plus: ^5.1.0
+  crypto: ^3.0.3
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.