Flutter使用Dialog

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

class MyDialogApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) { return MaterialApp( title: "Dialog Demo", theme: ThemeData( primarySwatch: Colors.blue, ), home: MyHomePage(), );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text("Dialog"), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ RaisedButton( child: Text("Show Material Dialog"), onPressed: _openMaterialDialog, ), RaisedButton( child: Text("Show Cupertino Dialog"), onPressed: _openCupertinoDialog, ) ], ), ), );
  }
  _openMaterialDialog(){ showDialog( context: context, builder: (_) => new AlertDialog( title: new Text("Material Dialog"), content: new Text("大家好！这是Material Dialog"), actions: <Widget>[ FlatButton( child: Text('关闭!'), onPressed: () { Navigator.of(context).pop(); }, ) ], ));
  }
  _openCupertinoDialog(){ showDialog( context: context, builder: (_) => new CupertinoAlertDialog( title: new Text("Cupertino Dialog"), content: new Text("大家好！这是Cupertino Dialog"), actions: <Widget>[ FlatButton( child: Text('关闭!'), onPressed: () { Navigator.of(context).pop(); }, ) ], ));
  }
}


  

 

  
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效果如下：

文章来源: blog.csdn.net，作者：WongKyunban，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/weixin_40763897/article/details/109274854