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import 'dart:math'; | |
import 'package:flutter/material.dart'; | |
void main() => runApp( | |
MaterialApp( | |
home: BallPage(), | |
), | |
); | |
class BallPage extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
backgroundColor: Colors.blue, | |
appBar: AppBar( | |
backgroundColor: Colors.blue.shade900, | |
title: Text('Ask Me Anything'), | |
), | |
body: Ball(), | |
); | |
} | |
} | |
class Ball extends StatefulWidget { | |
@override | |
_BallState createState() => _BallState(); | |
} | |
class _BallState extends State<Ball> { | |
int ballNumber = 1; | |
@override | |
Widget build(BuildContext context) { | |
return Center( | |
child: FlatButton( | |
onPressed: () { | |
setState(() { | |
ballNumber = Random().nextInt(5) + 1; | |
}); | |
}, | |
child: Image.asset('images/ball$ballNumber.png'), | |
), | |
); | |
} | |
} |
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