A Flutter Sound Pool for playing short media files.

Sound Pool caches audio tracks in memory. This can be useful in following scenarios:

• lower latency between play signal and actual playing of the sound (audio does not need to be read from disc/web),
• the same sound may be used multiple times.

Inspired by .

 

import 'dart:async';import 'package:flutter/material.dart';import 'package:flutter/services.dart';import 'package:soundpool/soundpool.dart';class Sound extends StatefulWidget {  final Widget child;  const Sound({Key key, this.child}) : super(key: key);  @override  SoundState createState() => SoundState();  static SoundState of(BuildContext context) {    final state = context.ancestorStateOfType(const TypeMatcher
     
      ());    assert(state != null, 'can not find Sound widget');    return state;  }}const _SOUNDS = [  'clean.mp3',  'drop.mp3',  'explosion.mp3',  'move.mp3',  'rotate.mp3',  'start.mp3'];class SoundState extends State
      
        {  Soundpool _pool;  Map
       
         _soundIds;  bool mute = false;  void _play(String name) {    final soundId = _soundIds[name];    if (soundId != null && !mute) {      _pool.play(soundId);    }  }  @override  void initState() {    super.initState();    _pool = Soundpool(streamType: StreamType.music, maxStreams: 4);    _soundIds = Map();    for (var value in _SOUNDS) {      scheduleMicrotask(() async {        final data = await rootBundle.load('assets/audios/$value');        _soundIds[value] = await _pool.load(data);      });    }  }  @override  void dispose() {    super.dispose();    _pool.dispose();  }  @override  Widget build(BuildContext context) {    return widget.child;  }  void start() {    _play('start.mp3');  }  void clear() {    _play('clean.mp3');  }  void fall() {    _play('drop.mp3');  }  void rotate() {    _play('rotate.mp3');  }  void move() {    _play('move.mp3');  }}
       
      
     

　　

 

 

 

class PlaySound {
    final _SOUNDS = [     'clean.mp3',     'drop.mp3',     'explosion.mp3',     'move.mp3',     'rotate.mp3',     'start.mp3'   ];   Map soundIds = Map();   play(String name){
      soundpool.play(soundIds[name]);   }   Soundpool soundpool = Soundpool(streamType: StreamType.music, maxStreams: 4);   PlaySound(){
      scheduleMicrotask(()async{
        for(var value in _SOUNDS){
          var data = await rootBundle.load('assets/audios/$value');         soundIds[value] = await soundpool.load(data);       }     });   } }