ex:
import 'dart:math';
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'DialogApp',
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
SimpleDialog(
title: Text('Dialog title'),//Dialog的标题
children: <Widget>[
SimpleDialogOption(
child: Text('Choice 1'),
onPressed: (){
print('Choice 1');
},
),
SimpleDialogOption(
child: Text('Choice 2'),
onPressed: (){
print('Choice 2');
},
)
],
),
RaisedButton(//按钮弹出Dialog
child: Text('Delete'),
onPressed: () {
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: Text('Notice'),
content: SingleChildScrollView(
child: ListBody(
children: <Widget>[
Text('Agree to Delete?'),
Text('Make sure your choice!'),
],
),
),
actions: <Widget>[
FlatButton(
child: Text('Agree'),
onPressed: () {
Navigator.of(context).pop();
},
),
FlatButton(
child: Text('Cancel'),
onPressed: () {
Navigator.of(context).pop();
},
),
],
);
}
);
},
),
],
),
),
);
}
}
输出: