242 lines
7.7 KiB
Dart
242 lines
7.7 KiB
Dart
// main.dart
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:qhd_prevention/pages/badge_manager.dart';
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import 'package:qhd_prevention/services/auth_service.dart';
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import 'package:qhd_prevention/tools/tools.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import './pages/login_page.dart';
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import './pages/main_tab.dart';
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import 'package:intl/date_symbol_data_local.dart';
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import 'http/HttpManager.dart';
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import 'package:flutter_easyloading/flutter_easyloading.dart';
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import 'package:flutter/services.dart'; // for TextInput.hide
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// 全局导航键
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final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
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// 全局路由
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final RouteObserver<PageRoute> routeObserver = RouteObserver<PageRoute>();
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// 全局消息控制器
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class GlobalMessage {
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static void showError(String message) {
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final context = navigatorKey.currentContext;
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if (context != null) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(message),
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backgroundColor: Colors.red,
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duration: const Duration(seconds: 3),
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),
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);
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}
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}
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}
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/// 全局 helper：在弹窗前取消焦点并尽量隐藏键盘，避免弹窗后键盘自动弹起
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Future<T?> showDialogAfterUnfocus<T>(
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BuildContext context,
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Widget dialog,
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) async {
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// 取消焦点并尝试隐藏键盘
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FocusScope.of(context).unfocus();
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try {
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await SystemChannels.textInput.invokeMethod('TextInput.hide');
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} catch (_) {}
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// 给系统一点时间，避免竞态（100-200ms 足够）
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await Future.delayed(const Duration(milliseconds: 150));
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return showDialog<T>(context: context, builder: (_) => dialog);
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}
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/// 同理：在展示底部模态前确保键盘隐藏
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Future<T?> showModalBottomSheetAfterUnfocus<T>({
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required BuildContext context,
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required WidgetBuilder builder,
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bool isScrollControlled = false,
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}) async {
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FocusScope.of(context).unfocus();
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try {
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await SystemChannels.textInput.invokeMethod('TextInput.hide');
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} catch (_) {}
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await Future.delayed(const Duration(milliseconds: 150));
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return showModalBottomSheet<T>(
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context: context,
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isScrollControlled: isScrollControlled,
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builder: builder,
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);
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}
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void main() async {
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WidgetsFlutterBinding.ensureInitialized();
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await SystemChrome.setPreferredOrientations([
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DeviceOrientation.portraitUp,
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DeviceOrientation.portraitDown,
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]);
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// 初始化 EasyLoading
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EasyLoading.instance
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..displayDuration = const Duration(seconds: 20)
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..indicatorType = EasyLoadingIndicatorType.ring
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..loadingStyle = EasyLoadingStyle.custom
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..indicatorSize = 36.0
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..radius = 0
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..progressColor = Colors.blue
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..backgroundColor = Colors.grey.shade300
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..indicatorColor = Colors.blue
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..textColor = Colors.black
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..userInteractions = false
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..dismissOnTap = false;
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await initializeDateFormatting('zh_CN', null);
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// 初始化HTTP管理器未授权回调
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HttpManager.onUnauthorized = () async {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setBool('isLoggedIn', false);
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await prefs.remove('token');
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navigatorKey.currentState?.pushNamedAndRemoveUntil(
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'/login',
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(route) => false,
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);
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Future.delayed(const Duration(milliseconds: 100), () {
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GlobalMessage.showError('您的账号已在其他设备登录，已自动下线，请使用单一设备进行学习。');
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});
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};
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// 自动登录逻辑
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final prefs = await SharedPreferences.getInstance();
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final savedLogin = prefs.getBool('isLoggedIn') ?? false;
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bool isLoggedIn = false;
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if (savedLogin) {
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// 如果本地标记已登录，进一步验证 token 是否有效
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try {
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isLoggedIn = await AuthService.isLoggedIn();
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} catch (e) {
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isLoggedIn = false;
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}
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}
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runApp(MyApp(isLoggedIn: isLoggedIn));
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}
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/// MyApp：恢复为 Stateless（无需监听 viewInsets）
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class MyApp extends StatelessWidget {
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final bool isLoggedIn;
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const MyApp({super.key, required this.isLoggedIn});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: '',
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localizationsDelegates: [
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GlobalMaterialLocalizations.delegate,
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GlobalCupertinoLocalizations.delegate,
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GlobalWidgetsLocalizations.delegate,
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// 如果使用了其他本地化包，请添加对应的 delegate
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],
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supportedLocales: const [
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Locale('zh', 'CN'), // 中文
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Locale('en', 'US'), // 英文（备用）
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],
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locale: const Locale('zh', 'CN'),
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// 强制使用中文
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navigatorKey: navigatorKey,
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// 在路由变化时统一取消焦点（防止 push/pop 时焦点回到 TextField）
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navigatorObservers: [KeyboardUnfocusNavigatorObserver(), routeObserver],
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builder: (context, child) {
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// 使用 EasyLoading.init，同时在其内部把 textScaleFactor 固定为 1.0
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return EasyLoading.init(
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builder: (context, widget) {
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// 拿到当前 MediaQuery 并创建一个 textScaleFactor = 1.0 的副本
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final mq = MediaQuery.maybeOf(context) ?? MediaQueryData.fromWindow(WidgetsBinding.instance.window);
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final fixed = mq.copyWith(textScaleFactor: 1.0);
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return MediaQuery(
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data: fixed,
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child: GestureDetector(
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behavior: HitTestBehavior.translucent,
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onTap: () {
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// 全局点击空白处取消焦点（隐藏键盘）
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try {
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FocusManager.instance.primaryFocus?.unfocus();
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} catch (e) {
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debugPrint('NavigatorObserver unfocus error: $e');
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}
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},
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child: widget,
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),
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);
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},
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)(context, child);
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},
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theme: ThemeData(
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textTheme: const TextTheme(
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bodyMedium: TextStyle(fontSize: 13), // 默认字体大小
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),
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dividerTheme: const DividerThemeData(
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color: Colors.black12,
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thickness: .5,
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indent: 0,
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endIndent: 0,
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),
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primarySwatch: Colors.blue,
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scaffoldBackgroundColor: const Color(0xFFF1F1F1),
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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inputDecorationTheme: const InputDecorationTheme(
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border: InputBorder.none,
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contentPadding: EdgeInsets.symmetric(horizontal: 8),
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),
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snackBarTheme: const SnackBarThemeData(
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behavior: SnackBarBehavior.floating,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.all(Radius.circular(8)),
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),
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),
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progressIndicatorTheme: const ProgressIndicatorThemeData(
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color: Colors.blue,
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),
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),
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home: isLoggedIn ? const MainPage() : const LoginPage(),
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debugShowCheckedModeBanner: false,
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routes: {'/login': (_) => const LoginPage()},
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);
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}
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}
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/// NavigatorObserver：在 push/pop/remove/replace 等路由变化时统一取消焦点
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class KeyboardUnfocusNavigatorObserver extends NavigatorObserver {
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void _unfocus() {
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try {
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FocusManager.instance.primaryFocus?.unfocus();
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} catch (e) {
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debugPrint('NavigatorObserver unfocus error: $e');
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}
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}
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@override
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void didPush(Route route, Route? previousRoute) {
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_unfocus();
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super.didPush(route, previousRoute);
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}
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@override
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void didPop(Route route, Route? previousRoute) {
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_unfocus();
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super.didPop(route, previousRoute);
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}
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@override
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void didRemove(Route route, Route? previousRoute) {
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_unfocus();
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super.didRemove(route, previousRoute);
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}
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@override
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void didReplace({Route? newRoute, Route? oldRoute}) {
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_unfocus();
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super.didReplace(newRoute: newRoute, oldRoute: oldRoute);
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}
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}
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