66 lines
2.1 KiB
Dart
66 lines
2.1 KiB
Dart
import 'package:flutter/material.dart';
|
|
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
|
|
|
import '../../providers/auth_provider.dart';
|
|
import '../add/add_page.dart';
|
|
import '../home/home_page.dart';
|
|
import '../login/login_page.dart';
|
|
import '../mine/mine_page.dart';
|
|
import '../statistics/statistics_page.dart';
|
|
|
|
class MainShell extends ConsumerStatefulWidget {
|
|
const MainShell({super.key});
|
|
|
|
@override
|
|
ConsumerState<MainShell> createState() => _MainShellState();
|
|
}
|
|
|
|
class _MainShellState extends ConsumerState<MainShell> {
|
|
int _index = 0; // 默认选中「首页」
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
// 兜底：未登录直接回登录页
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
if (!ref.read(authProvider).isLoggedIn) {
|
|
_goLogin();
|
|
}
|
|
});
|
|
}
|
|
|
|
void _goLogin() {
|
|
Navigator.of(context).pushAndRemoveUntil(
|
|
MaterialPageRoute(builder: (_) => const LoginPage()),
|
|
(route) => false,
|
|
);
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
// IndexedStack 保证四个页面常驻：写操作后首页/统计的数据失效能立即重取，
|
|
// 用户切回时看到的就是最新数据。
|
|
const pages = [
|
|
HomePage(),
|
|
AddPage(),
|
|
StatisticsPage(),
|
|
MinePage(),
|
|
];
|
|
return Scaffold(
|
|
body: IndexedStack(index: _index, children: pages),
|
|
bottomNavigationBar: NavigationBar(
|
|
selectedIndex: _index,
|
|
onDestinationSelected: (i) => setState(() => _index = i),
|
|
backgroundColor: Colors.white,
|
|
indicatorColor: const Color(0x33C8956E),
|
|
destinations: const [
|
|
NavigationDestination(icon: Icon(Icons.home_outlined), selectedIcon: Icon(Icons.home), label: '首页'),
|
|
NavigationDestination(icon: Icon(Icons.add_circle_outline), selectedIcon: Icon(Icons.add_circle), label: '记账'),
|
|
NavigationDestination(icon: Icon(Icons.bar_chart_outlined), selectedIcon: Icon(Icons.bar_chart), label: '统计'),
|
|
NavigationDestination(icon: Icon(Icons.person_outline), selectedIcon: Icon(Icons.person), label: '我的'),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|