qhd-prevention-flutter/lib/main.dart

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import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import './pages/login_page.dart'; // 导入登录页面
import './pages/main_tab.dart'; // 导入主页带TabBar的页面
import 'package:intl/date_symbol_data_local.dart';
void main() async {
// 确保Flutter引擎初始化完成
WidgetsFlutterBinding.ensureInitialized();
await initializeDateFormatting('zh_CN', null);
// 获取共享首选项实例
final prefs = await SharedPreferences.getInstance();
// 获取登录状态
final isLoggedIn = prefs.getBool('isLoggedIn') ?? false;
runApp(MyApp(isLoggedIn: isLoggedIn));
}
class MyApp extends StatelessWidget {
final bool isLoggedIn;
const MyApp({super.key, required this.isLoggedIn});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: '',
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builder: (context, child) {
return GestureDetector(
behavior: HitTestBehavior.translucent, // 让空白区域也能点击
onTap: () {
// 收起键盘
FocusScope.of(context).unfocus();
},
child: child,
);
},
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theme: ThemeData(
dividerTheme: const DividerThemeData(
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color: Color(0xF1F1F1FF),
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thickness: 1, // 线高
indent: 0, // 左缩进
endIndent: 0, // 右缩进
),
primarySwatch: Colors.blue,
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
inputDecorationTheme: const InputDecorationTheme(
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(horizontal: 8),
),
),
// 根据登录状态决定初始页面
home: isLoggedIn ? const MainPage() : const LoginPage(),
debugShowCheckedModeBanner: false,
);
}
}