我建议您查看
这个代码片段,以获取帮助。
import 'package:firebase_auth/firebase_auth.dart';
import 'package:my_nit2018/navigarion_drawer.dart';
import 'package:my_nit2018/pages/app/blog/blog_page.dart';
import 'package:my_nit2018/pages/app/home/home_page.dart';
import 'package:my_nit2018/pages/app/library/library_page.dart';
import 'package:my_nit2018/pages/app/notifications/notifications_page.dart';
class MainApp extends StatefulWidget {
FirebaseUser user;
MainApp(this.user);
@override
_MainAppState createState() => new _MainAppState();
}
class _MainAppState extends State<MainApp> {
int i = 0;
var pages = [
new HomePage(),
new BlogPage(),
new LibraryPage(),
new NotificationsPage()
];
@override
Widget build(BuildContext context) {
return new Scaffold(
body: pages[i],
drawer: new AppNavigationDrawer(),
bottomNavigationBar: new BottomNavigationBar(
items: [
new BottomNavigationBarItem(
icon: new Icon(Icons.home),
title: new Text('Home'),
),
new BottomNavigationBarItem(
icon: new Icon(Icons.photo_library),
title: new Text('Blog'),
),
new BottomNavigationBarItem(
icon: new Icon(Icons.book),
title: new Text('Library'),
),
new BottomNavigationBarItem(
icon: new Icon(Icons.notifications),
title: new Text('Notifications'),
),
],
currentIndex: i,
type: BottomNavigationBarType.fixed,
onTap: (index) {
setState(() {
i = index;
});
},
),
);
}
}
应用程序导航抽屉:
import 'package:flutter/material.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:my_nit2018/pages/app/app_state.dart';
import 'package:my_nit2018/pages/app/main_app.dart';
import 'package:my_nit2018/pages/app/profile/profile_page.dart';
import 'package:my_nit2018/pages/auth/login_page.dart';
class AppNavigationDrawer extends StatefulWidget {
@override
_AppNavigationDrawerState createState() => new
_AppNavigationDrawerState();
}
class _AppNavigationDrawerState extends State<AppNavigationDrawer> {
@override
Widget build(BuildContext context) {
final appState = AppState.of(context);
return new Drawer(
child: new ListView(
padding: EdgeInsets.zero,
children: <Widget>[
new DrawerHeader(
child: new Text('MyNiT App'),
decoration: new BoxDecoration(
color: Colors.blue,
),
),
new ListTile(
title: new Text('Todo List'),
leading: new Icon(Icons.list),
onTap: () {
Navigator.pop(context);
},
),
new ListTile(
title: new Text('Subscriptions'),
leading: new Icon(Icons.subscriptions),
onTap: () {
Navigator.pop(context);
},
),
new ListTile(
title: new Text('Activity'),
leading: new Icon(Icons.timelapse),
onTap: () {
Navigator.pop(context);
},
),
new ListTile(
title: new Text('Profile'),
leading: new Icon(Icons.account_circle),
onTap: () {
Navigator.pop(context);
Navigator.push(
context,
new MaterialPageRoute(
builder: (context) => new AppState(
firebaseUser: appState.firebaseUser,
user: appState.user,
child: new ProfilePage(),
),
),
);
},
),
new ListTile(
title: new Text('Logout'),
leading: new Icon(Icons.exit_to_app),
onTap: () {
FirebaseAuth.instance.signOut();
Navigator.of(context).pushAndRemoveUntil(
new MaterialPageRoute(builder: (context) => new LoginPage()),
ModalRoute.withName(null));
},
),
],
),
);
}
}
PageStorageKey
。链接为 https://docs.flutter.io/flutter/widgets/PageStorageKey-class.html。此页面可能会对您有所帮助 https://dev59.com/fFUL5IYBdhLWcg3wzavS#49781672。 - Shady Aziza