解决因为使用AnnotatedRegion实现AppBar透明背景效果时，操作H5 video全屏播放会卡住的问题。

lib/app.dart

@@ -3,6 +3,7 @@ import 'dart:io';
 import 'package:appframe/l10n/gen/app_localizations.dart';
 import 'package:appframe/l10n/gen/app_localizations.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 
 
 import 'config/routes.dart';
 import 'config/routes.dart';
 
 
@@ -10,23 +11,14 @@ class App extends StatelessWidget {
   const App({super.key});
   const App({super.key});
 
 
   @override
   @override
-  Widget build(BuildContext context) => Platform.isIOS
+  Widget build(BuildContext context) {
+    final Widget app = Platform.isIOS
         ? CupertinoApp.router(
         ? CupertinoApp.router(
             routerConfig: router,
             routerConfig: router,
             title: '班小二',
             title: '班小二',
             theme: const CupertinoThemeData(primaryColor: CupertinoColors.systemBlue),
             theme: const CupertinoThemeData(primaryColor: CupertinoColors.systemBlue),
             localizationsDelegates: AppLocalizations.localizationsDelegates,
             localizationsDelegates: AppLocalizations.localizationsDelegates,
             supportedLocales: AppLocalizations.supportedLocales,
             supportedLocales: AppLocalizations.supportedLocales,
-          // // === 为 iOS 添加本地化配置 ===
-          // localizationsDelegates: const [
-          //   GlobalMaterialLocalizations.delegate, // 为Material组件提供本地化
-          //   GlobalCupertinoLocalizations.delegate, // 为Cupertino组件提供本地化
-          //   GlobalWidgetsLocalizations.delegate,   // 定义文本方向等
-          // ],
-          // supportedLocales: const [
-          //   Locale('zh', 'CN'), // 中文（中国）
-          //   Locale('en', 'US'), // 英语（美国）
-          // ],
           )
           )
         : MaterialApp.router(
         : MaterialApp.router(
             routerConfig: router,
             routerConfig: router,
@@ -35,4 +27,19 @@ class App extends StatelessWidget {
             supportedLocales: AppLocalizations.supportedLocales,
             supportedLocales: AppLocalizations.supportedLocales,
             localizationsDelegates: AppLocalizations.localizationsDelegates,
             localizationsDelegates: AppLocalizations.localizationsDelegates,
           );
           );
+
+    // 全局默认状态栏样式兑底：透明背景 + 深色图标。
+    // 作为最外层 AnnotatedRegion 只挂载一次，不会随页面状态变化反复
+    // 下发命令，避免污染 Android decorView 上 H5 <video> 全屏依赖的
+    // systemUiVisibility flag。带 AppBar 的页面由 AppBar.systemOverlayStyle
+    // 在其 region 区域局部覆盖，隐藏 AppBar 后自动回到本全局值。
+    return AnnotatedRegion<SystemUiOverlayStyle>(
+      value: const SystemUiOverlayStyle(
+        statusBarColor: Colors.transparent,
+        statusBarIconBrightness: Brightness.dark,
+        statusBarBrightness: Brightness.light,
+      ),
+      child: app,
+    );
+  }
 }
 }

lib/ui/pages/web_page.dart

@@ -5,7 +5,6 @@ import 'package:appframe/config/env_config.dart';
 import 'package:appframe/config/locator.dart';
 import 'package:appframe/config/locator.dart';
 import 'package:appframe/config/routes.dart';
 import 'package:appframe/config/routes.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:go_router/go_router.dart';
 import 'package:go_router/go_router.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -119,16 +118,11 @@ class WebPage extends StatelessWidget {
                 : null,
                 : null,
           );
           );
 
 
-          final child = state.showAppBar
-              ? scaffold
-              : AnnotatedRegion<SystemUiOverlayStyle>(
-                  value: const SystemUiOverlayStyle(
-                    statusBarColor: Colors.transparent, // 设置状态栏背景透明
-                    statusBarIconBrightness: Brightness.dark,
-                    statusBarBrightness: Brightness.light,
-                  ),
-                  child: scaffold,
-                );
+          // 不论 showAppBar 是否为 true，都直接使用 scaffold。
+          // 原因：Android 平台上 setSystemUIOverlayStyle 会修改 decorView 的
+          // systemUiVisibility flag，污染 H5 <video> 全屏插件赖赖的 flag，
+          // 导致全屏画面卡死。状态栏样式应在 main.dart 启动时一次性设置。
+          final child = scaffold;
 
 
           // ios 不使用 PopScope
           // ios 不使用 PopScope
           if (Platform.isIOS) {
           if (Platform.isIOS) {