多線程

void playOnlineSound(String soundUrlDict) {
        try {
            Log.i(TAG,"playOnlineSound:"+soundUrlDict);
            MediaPlayer mediaPlayer = new MediaPlayer();
            if(!TextUtils.isEmpty(soundUrlDict) && !soundUrlDict.contains("/")){//如果不包含"/" 則調用assets內的音頻   例xxx.mp3
                //獲取assets目錄下音頻文件的AssetFileDescriptor
                AssetFileDescriptor afd = getAssets().openFd(soundUrlDict);
                //獲取AssetFileDescriptor中的 音頻文件 / 起始偏移量 / 文件長度：
                mediaPlayer.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
            }else if(!TextUtils.isEmpty(soundUrlDict) && !soundUrlDict.contains("http")) {
				//如果包含"/" 則調用手機文件系統內的音頻 例:/storage/emulated/0/KuwoMusic/music/雪.mp3
                    File file = new File(soundUrlDict);
                    FileInputStream fis = new FileInputStream(file);
                    mediaPlayer.setDataSource(fis.getFD());
            }else {//調用網絡音頻 例:http://****/xxx.mp3
                mediaPlayer.setDataSource(soundUrlDict);
            }
            //異步準備播放
            mediaPlayer.prepareAsync();
            //開始播放
            mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(MediaPlayer mediaPlayer) {
                    mediaPlayer.start();
                }
            });
            //釋放MediaPlayer對象
            mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mp) {
                    if (mp != null) {
                        mp.release();
                    }
                    Log.d(TAG, "onCompletion: play sound.");
                }
            });
            mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
                @Override
                public boolean onError(MediaPlayer mediaPlayer, int i, int i1) {
                    Log.d(TAG, "Play online sound onError: " + i + ", " + i1);
                    return false;
                }
            });
        } catch (IOException e1) {
            Log.e(TAG, "url: ", e1);
        }
    }

單線程

    void playOnlineSound() {
        try {
                 AssetFileDescriptor assetFileDescriptor = assetManager.openFd("###");//assest下的MP3路徑,
                 FileDescriptor fileDescriptor = assetFileDescriptor.getFileDescriptor();//獲取FileDescriptor
                 MediaPlayer mediaPlayer = new MediaPlayer();
                 mediaPlayer.setDataSource(fileDescriptor,assetFileDescriptor.getStartOffset(),assetFileDescriptor.getLength());
                 mediaPlayer.prepare();
                 mediaPlayer.start();
        } catch (IOException e1) {
            Log.e(TAG, "url: ", e1);
        }
    }