代码：
import 'package:flutter/material.dart';
void main() {
runApp(MaterialApp(
title: '导航演示',
home: new FirstScreen()
));
}
class FirstScreen extends StatelessWidget{
@override
Widget build(BuildContext context){
return Scaffold(
appBar: AppBar(title: Text('首页'),),
body: Center(
child: RaisedButton(
child: Text('进入详情页'),
onPressed: (){
Navigator.push(context, MaterialPageRoute(
builder: (context) => new SecondScreen()
));
},
),
),
);
}
}
class SecondScreen extends StatelessWidget{
Widget build (BuildContext context){
return Scaffold(
appBar: AppBar(title: Text('详情页'),),
body: Center(
child: RaisedButton(
child: Text('返回首页'),
onPressed: (){
Navigator.pop(context);
},
),
),
);
}
}
总结：
//nav 导航
//压栈
路由传递
Navigator.push (context,MateriapageRoute(
builder:(context) => new xxxx()//xxx 是要进入的新页面
))
出栈
Navigator.pop(context)//返回上一级