Android使用SoundPool播放短音效
阿新 • • 發佈:2020-01-07
前言
對於Android播放一些簡短音效,例如提示音,或者鈴聲,相對於使用MediaPlayer,SoundPool可以節省更多資源,並且可以同時播放多個音效,而且可以針對不同音效設定不同播放品質
實現
SoundPool的具體作用,就不再闡述,直接貼程式碼
private SoundPool.Builder spBuilder; private SoundPool soundPool; private Integer[] fmSound = FmManager.getRawAudios(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { if (null == spBuilder) { spBuilder = new SoundPool.Builder(); AudioAttributes.Builder builder = new AudioAttributes.Builder(); builder.setLegacyStreamType(AudioManager.STREAM_MUSIC); spBuilder.setAudioAttributes(builder.build()); spBuilder.setMaxStreams(10); } if (null == soundPool) { soundPool = spBuilder.build(); } } else { if (null == soundPool) { soundPool = new SoundPool(10,AudioManager.STREAM_MUSIC,10); //最多播放10個音效,格式為Steam_music,音質為10 } } soundPool.setOnLoadCompleteListener(this); if (null == fmArray) { fmArray = new SparseIntArray(); } if (null == streamArray) { streamArray = new SparseIntArray(); } for (int i = 0; i < fmSound.length; i++) { fmArray.put(i + 1,soundPool.load(this,fmSound[i],1)); //將需要播放的資源新增到SoundPool中,並儲存返回的StreamID,通過StreamID可以停止某個音效 } private void playFmByPosition(int resultId) { if (null == soundPool || resultId < 0 || fmArray == null || fmArray.size() < 0 || streamArray == null) return; LogUtils.e(resultId + "------------" + fmArray.size()); if (resultId < fmArray.size()) { if (!FmPlaying.isPlay(resultId)) { int fmPlayId = soundPool.play(fmArray.get(resultId + 1),1,-1,1); streamArray.put(resultId,fmPlayId); FmPlaying.setPlay(resultId,true); } else { soundPool.stop(streamArray.get(resultId)); streamArray.removeAt(resultId); FmPlaying.setPlay(resultId,false); } } } static class FmPlaying { private static SparseBooleanArray playArray = new SparseBooleanArray(); public static boolean isPlay(int position) { return playArray.get(position,false); } public static void setPlay(int position,boolean play) { playArray.put(position,play); } }
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