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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
/// Flutter code sample for [AnimatedSize].
void main() => runApp(const AnimatedSizeExampleApp());
class AnimatedSizeExampleApp extends StatelessWidget {
const AnimatedSizeExampleApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('AnimatedSize Sample')),
body: const Center(
child: AnimatedSizeExample(),
),
),
);
}
}
class AnimatedSizeExample extends StatefulWidget {
const AnimatedSizeExample({super.key});
@override
State<AnimatedSizeExample> createState() => _AnimatedSizeExampleState();
}
class _AnimatedSizeExampleState extends State<AnimatedSizeExample> {
double _size = 50.0;
bool _large = false;
void _updateSize() {
setState(() {
_size = _large ? 250.0 : 100.0;
_large = !_large;
});
}
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: () => _updateSize(),
child: ColoredBox(
color: Colors.amberAccent,
child: AnimatedSize(
curve: Curves.easeIn,
duration: const Duration(seconds: 1),
child: FlutterLogo(size: _size),
),
),
);
}
}