116 lines
3.5 KiB
Dart
116 lines
3.5 KiB
Dart
import 'package:flutter/material.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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// 全局导航键
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final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
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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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void main() async {
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// 确保Flutter引擎初始化完成
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WidgetsFlutterBinding.ensureInitialized();
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await initializeDateFormatting('zh_CN', null);
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// 获取共享首选项实例
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final prefs = await SharedPreferences.getInstance();
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// 获取登录状态
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final isLoggedIn = prefs.getBool('isLoggedIn') ?? false;
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// 初始化HTTP管理器
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HttpManager.onUnauthorized = () async {
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// 清除登录状态
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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'); // 如果有token的话
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// 导航到登录页
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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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// 等一帧让页面构建完成
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Future.delayed(const Duration(milliseconds: 100), () {
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GlobalMessage.showError('会话已过期，请重新登录');
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});
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};
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runApp(MyApp(isLoggedIn: isLoggedIn));
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}
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class MyApp extends StatelessWidget {
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final bool isLoggedIn;
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MyApp({super.key, required this.isLoggedIn});
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final FocusNode _blankFocusNode = FocusNode(); // 全局空焦点节点
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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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navigatorKey: navigatorKey, // 设置全局导航键
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builder: (context, child) {
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return GestureDetector(
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behavior: HitTestBehavior.translucent, // 让空白区域也能点击
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onTap: () {
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// 收起键盘
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FocusScope.of(context).unfocus();
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},
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child: child,
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);
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},
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theme: ThemeData(
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dividerTheme: const DividerThemeData(
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color: Colors.black12,
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thickness: .5, // 线高
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indent: 0, // 左缩进
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endIndent: 0, // 右缩进
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),
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primarySwatch: Colors.blue,
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// 统一设置页面背景颜色
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scaffoldBackgroundColor: const Color(0xFFF1F1F1), // 浅灰色背景
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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: ProgressIndicatorThemeData(
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color: Colors.blue, // 统一颜色
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),
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),
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// 根据登录状态决定初始页面
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home: isLoggedIn ? const MainPage() : const LoginPage(),
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debugShowCheckedModeBanner: false,
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routes: {
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'/login': (_) => const LoginPage(),
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// ... 其他路由
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},
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);
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}
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} |