Android使用SoundPool播放短音效

前言

对于Android播放一些简短音效，例如提示音，或者铃声，相对于使用MediaPlayer，SoundPool可以节省更多资源，并且可以同时播放多个音效，而且可以针对不同音效设置不同播放品质

实现

SoundPool的具体作用，就不再阐述，直接贴代码

    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个音效，格式为Steam_music，音质为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));   //将需要播放的资源添加到SoundPool中，并保存返回的StreamID，通过StreamID可以停止某个音效        } 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, 0, -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);        }    }```

前言

实现

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