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 MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  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: Container(
        color: Colors.amberAccent,
        child: AnimatedSize(
          curve: Curves.easeIn,
          duration: const Duration(seconds: 1),
          child: FlutterLogo(size: _size),
        ),
      ),
    );
  }
}