하나씩 누를 때 실로폰처럼 소리가 나는 앱이다. import 'package:flutter/material.dart'; import 'package:audioplayers/audio_cache.dart'; void main() => runApp(XylophoneApp()); class XylophoneApp extends StatelessWidget { final player = AudioCache(); void playSound(int soundNum) { player.play('note$soundNum.wav'); } Widget buildKey(int numKey, Color _color) { return Expanded( child: FlatButton( onPressed: () { playSou..
