准备借助release版本定位首帧阻塞的问题来源

lib/main.dart

@@ -12,11 +12,15 @@ import 'widgets/global_mini_player.dart';
 
 final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
 
-// ═══════════════════════════════════════════════════
-// main: 只做 runApp，不做任何初始化
-// ═══════════════════════════════════════════════════
+// ⏱️ 全局计时器
+final stopwatch = Stopwatch();
+
 void main() {
+  stopwatch.start();
+  debugPrint('⏱️ T0 main: ${stopwatch.elapsedMilliseconds}ms');
+
   WidgetsFlutterBinding.ensureInitialized();
+  debugPrint('⏱️ T0.5 ensureInitialized: ${stopwatch.elapsedMilliseconds}ms');
 
   runApp(
     MultiProvider(
@@ -27,11 +31,10 @@ void main() {
       child: const QTPlayerApp(),
     ),
   );
+
+  debugPrint('⏱️ T0.8 runApp 完成: ${stopwatch.elapsedMilliseconds}ms');
 }
 
-// ═══════════════════════════════════════════════════
-// RouteManager - 路由状态
-// ═══════════════════════════════════════════════════
 class RouteManager extends ChangeNotifier {
   static final RouteManager _instance = RouteManager._internal();
   factory RouteManager() => _instance;
@@ -53,9 +56,6 @@ class RouteManager extends ChangeNotifier {
   }
 }
 
-// ═══════════════════════════════════════════════════
-// MiniPlayerNavigatorObserver - 路由监听
-// ═══════════════════════════════════════════════════
 class MiniPlayerNavigatorObserver extends NavigatorObserver {
   void _updateRoute(Route? route) {
     final name = route?.settings.name ?? '/';
@@ -78,9 +78,6 @@ class MiniPlayerNavigatorObserver extends NavigatorObserver {
   }
 }
 
-// ═══════════════════════════════════════════════════
-// QTPlayerApp - 主应用
-// ═══════════════════════════════════════════════════
 class QTPlayerApp extends StatefulWidget {
   const QTPlayerApp({super.key});
 
@@ -92,17 +89,17 @@ class _QTPlayerAppState extends State<QTPlayerApp> {
   @override
   void initState() {
     super.initState();
+    debugPrint('⏱️ T1.5 initState: ${stopwatch.elapsedMilliseconds}ms');
 
-    // 首帧完成后才开始初始化
     WidgetsBinding.instance.addPostFrameCallback((_) {
-      debugPrint('🖼️ Flutter 首帧已完成');
+      debugPrint('⏱️ T2 首帧回调: ${stopwatch.elapsedMilliseconds}ms');
       _initializeServices();
     });
   }
 
   @override
   Widget build(BuildContext context) {
-    debugPrint('🎨 QTPlayerApp.build()');
+    debugPrint('⏱️ T1 build: ${stopwatch.elapsedMilliseconds}ms');
 
     return MaterialApp(
       title: '清听',
@@ -148,23 +145,24 @@ class _QTPlayerAppState extends State<QTPlayerApp> {
   }
 }
 
-// ═══════════════════════════════════════════════════
-// 后台初始化 - 在首帧完成后执行
-// ═══════════════════════════════════════════════════
 void _initializeServices() async {
+  debugPrint('⏱️ T3 开始初始化: ${stopwatch.elapsedMilliseconds}ms');
   final lifecycle = AppLifecycleService();
 
   try {
     lifecycle.updateStatus(AppStatus.mediaKitInitializing);
     MediaKit.ensureInitialized();
+    debugPrint('⏱️ T4 MediaKit 完成: ${stopwatch.elapsedMilliseconds}ms');
     lifecycle.updateStatus(AppStatus.mediaKitReady);
 
     lifecycle.updateStatus(AppStatus.playerInitializing);
     PlaybackService().init();
+    debugPrint('⏱️ T5 Player 完成: ${stopwatch.elapsedMilliseconds}ms');
     lifecycle.updateStatus(AppStatus.playerReady);
 
     lifecycle.updateStatus(AppStatus.webdavChecking);
     final hasCred = await WebDAVService.instance.loadCredentials();
+    debugPrint('⏱️ T6 WebDAV 完成: ${stopwatch.elapsedMilliseconds}ms');
     if (hasCred) {
       lifecycle.updateStatus(AppStatus.webdavReady);
     } else {
@@ -172,7 +170,7 @@ void _initializeServices() async {
     }
 
     lifecycle.updateStatus(AppStatus.fullReady);
-    debugPrint('✅ 应用完全就绪');
+    debugPrint('✅ 应用完全就绪: ${stopwatch.elapsedMilliseconds}ms');
   } catch (e) {
     debugPrint('❌ 初始化错误: $e');
     lifecycle.updateStatus(AppStatus.error);