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Implicit Animations - TweenAnimationBuilder
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import 'package:flutter/material.dart'; | |
void main() => runApp(MyApp()); | |
class MyApp extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
home: MyHomePage(), | |
); | |
} | |
} | |
class MyHomePage extends StatefulWidget { | |
@override | |
_MyHomePageState createState() => _MyHomePageState(); | |
} | |
class OtusLogo extends StatelessWidget { | |
final Color color; | |
OtusLogo({@required this.color}); | |
@override | |
Widget build(BuildContext context) { | |
return Container( | |
color: color, | |
child: Image.network('https://github.com/flutter-cats/otus-cocktails-application/blob/master/logo-2.8602b.svg'), | |
width: 200.0, | |
height: 200.0, | |
); | |
} | |
} | |
class _MyHomePageState extends State<MyHomePage> { | |
static final colorTween = ColorTween(begin: Colors.red, end: Colors.green); | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: AppBar( | |
title: Text('Implicit Animations - TweenAnimationBuilder'), | |
), | |
body: Center( | |
child: TweenAnimationBuilder<Color>( | |
tween: colorTween, | |
duration: Duration(seconds: 2), | |
builder: (_, Color colorValue, Widget child) { | |
return OtusLogo(color: colorValue); | |
}, | |
), | |
), | |
); | |
} | |
} |
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