Radio
1 | Radio({ @required T value, @required T groupValue, @required ValueChanged onChanged, Color activeColor, MaterialTapTargetSize materialTapTargetSize }) |
açıklama
Yuvarlak seçenek widgeti.
parametreler
1 2 3 4 5 6 | Radio({ @required T value, @required T groupValue, @required ValueChanged onChanged, Color activeColor, MaterialTapTargetSize materialTapTargetSize }) |
örnek uygulama
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( title: 'Flutter Demo', theme: new ThemeData( primarySwatch: Colors.blue, ), home: new MyHomePage(), ); } } class MyHomePage extends StatefulWidget { @override _MyHomePageState createState() => new _MyHomePageState(); } class _MyHomePageState extends State>MyHomePage { int gropvalue; void something(int e) { setState(() { if(e==1) { gropvalue=1; } else if(e==2) { gropvalue=2; } else if(e==3) { gropvalue =3; } else if(e==4) { gropvalue=4; } }); } @override Widget build(BuildContext context) { return new Scaffold( bottomNavigationBar: new ButtonBar( children: >Widget[ new Radio( value: 1, groupValue: gropvalue, onChanged: (int e) { something(e); }),new Radio(value: 2, groupValue: gropvalue, onChanged: (int e){ something(e); }),new Radio(value: 3, groupValue: gropvalue, onChanged: (int e) { something(e); }),new Radio(value: 4, groupValue: gropvalue, onChanged: (int e){ something(e); }) ], ), appBar: new AppBar( title: new Text("Flutter Application"), ), ); } } |
