Created
August 10, 2021 20:24
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Duration example
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| import 'package:flutter/material.dart'; | |
| void main() => runApp(const MyApp()); | |
| class MyApp extends StatelessWidget { | |
| const MyApp({Key? key}) : super(key: key); | |
| @override | |
| Widget build(BuildContext context) { | |
| return const MaterialApp( | |
| title: 'Implicit Animation Example', | |
| home: Scaffold( | |
| body: Center( | |
| child: Example(), | |
| ), | |
| ), | |
| ); | |
| } | |
| } | |
| class Example extends StatefulWidget { | |
| const Example({Key? key}) : super(key: key); | |
| @override | |
| _ExampleState createState() => _ExampleState(); | |
| } | |
| class _ExampleState extends State<Example> { | |
| static const double _startWidth = 100.0; | |
| static const double _startHeight = 100.0; | |
| static const Color _startColor = Colors.red; | |
| double width = _startWidth; | |
| double height = _startHeight; | |
| Color color = _startColor; | |
| void _animateContainer() { | |
| setState(() { | |
| width = (width == _startWidth) ? _startWidth * 2 : _startWidth; | |
| height = (height == _startHeight) ? _startHeight * 2 : _startHeight; | |
| color = (color == _startColor) ? Colors.blue : _startColor; | |
| }); | |
| } | |
| @override | |
| Widget build(BuildContext context) { | |
| return GestureDetector( | |
| onTap: _animateContainer, | |
| child: AnimatedContainer( | |
| duration: const Duration(milliseconds: 600), // Play around with the duration of the animation | |
| curve: Curves.linear, | |
| width: width, | |
| height: height, | |
| color: color, | |
| ), | |
| ); | |
| } | |
| } |
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