Docs
demo
import 'package:flutter/material.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Ajnauw',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key}) : super(key: key);
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('demo'),
),
body: ListView(
children: [
RaisedButton(
onPressed: () {
// 点击触发事件，页面入栈
Navigator.of(context).push(
MaterialPageRoute(builder: (BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('New Page'),
),
body: Center(
child: Container(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text('New Page Body.'),
RaisedButton(
color: Theme.of(context).accentColor,
onPressed: () {
// 页面出栈
Navigator.pop(context);
},
child: Text('Back Page'),
),
],
),
),
),
);
}),
);
// Navigator.push(
// context,
// MaterialPageRoute(builder: (BuildContext context) {
// return Scaffold(
// appBar: AppBar(
// title: Text('New Page'),
// ),
// body: Center(
// child: Text('New Page Body.'),
// ),
// );
// }),
// );
},
child: Text('跳转新页面'),
),
],
),
);
}
} 配置 routes 跳转
import 'package:flutter/material.dart';
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Ajnauw',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
routes: {
'/a': (BuildContext context) => MyPage(title: 'page A'),
'/b': (BuildContext context) => MyPage(title: 'page B'),
'/c': (BuildContext context) => MyPage(title: 'page C'),
},
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key}) : super(key: key);
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State {
final List _pages = ['/a', '/b', '/c'];
String togoPage = '/b';
_handleRadioValueChange(String nv) {
setState(() {
togoPage = nv;
});
}
// 返回一个小widget
Widget _generagorRadio(String pageName) {
return GestureDetector(
onTap: () {
_handleRadioValueChange(pageName);
},
child: Container(
decoration: BoxDecoration(
color: Colors.grey[200],
),
margin: EdgeInsets.only(top: 8.0),
child: Row(
children: [
Radio(
value: pageName,
onChanged: _handleRadioValueChange,
groupValue: togoPage,
),
Text(pageName),
],
),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('demo'),
),
body: ListView(
children: [
Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0),
child: Column(
children: _pages
.map((String pageName) => _generagorRadio(pageName))
.toList(),
),
),
Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0, top: 8.0),
child: RaisedButton(
onPressed: () {
// 点击触发事件，页面入栈
Navigator.pushNamed(context, togoPage);
},
color: Theme.of(context).primaryColor,
child: Text('跳转新页面 $togoPage'),
),
),
],
),
);
}
}
class MyPage extends StatelessWidget {
final String title;
MyPage({Key key, this.title}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(title),
),
body: Center(
child: Text(title),
),
);
}
}