Android 播放raw檔案夾下音頻檔案，本地MP3檔案播放，播放雲端MP3檔案，擷取MP3檔案播放時長

1、複制音頻檔案到raw檔案夾下

2、執行個體化音頻檔案

private final MediaPlayer.OnCompletionListener beepListener = new MediaPlayer.OnCompletionListener() { // 聲音
    public void onCompletion(MediaPlayer mediaPlayer) {
        mediaPlayer.seekTo(0);
    }
};
           

private static final float BEEP_VOLUME = 9.10f;
private MediaPlayer mediaPlayer;
private void initBeepSound() {
    if ( mediaPlayer == null) {
        // The volume on STREAM_SYSTEM is not adjustable, and users found it
        // too loud,
        // so we now play on the music stream.

        mediaPlayer = new MediaPlayer();
        mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        mediaPlayer.setOnCompletionListener(beepListener);

        AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.sou);
        try {
            mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
            file.close();
            mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
            mediaPlayer.prepare();
        } catch (IOException e) {
            mediaPlayer = null;
        }
    }
}
           

3、開始播放

mediaPlayer.start();
           

2、播放雲端MP3檔案

 1、添加音頻播放器依賴

//exoplayer播放器
implementation 'com.google.android.exoplayer:exoplayer:2.8.4'
// 視訊緩存
implementation 'com.danikula:videocache:2.7.0'
implementation 'org.greenrobot:greendao:3.2.2'
           

 2、播放雲端MP3——檔案連結

PlayerView mExoPlay;
private SimpleExoPlayerHelper mMySimpleExoPlayer;

private List<String> mVideoSourseList = new ArrayList<>();
           

btn_downMP3.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        String vds = "https://gzlxcdg.https.xiaozhuschool.com/public/uploads/video/20200504/fa530b8ae53f8d2e7698ea0fb22d22d5.mp4";

        String urlStr = "http://zsxyylsb.app.xiaozhuschool.com/public/uploads/imgs/20200902/b04b350875d486b6957973bf7ea56dfc.mp3";
        if (!mVideoSourseList.isEmpty()) {
            mVideoSourseList.clear();
        }
        mVideoSourseList.add(urlStr);
        mVideoSourseList.add(vds);

        mMySimpleExoPlayer.prepare(mVideoSourseList);

        mMySimpleExoPlayer.setRepeatMode(SimpleExoPlayerHelper.RepeatMode.REPEAT_MODE_OFF);
        mMySimpleExoPlayer.start();//播放雲MP3

    }
});
           

3、播檔案夾裡面的MP3檔案 

MediaPlayer medPlay;
           

medPlay=MediaPlayer.create(this,Uri.parse("/storage/emulated/0/data/cn.dlc.xiaoyao/msc1/海洋第一集.mp3"));
           

開始

medPlay.start();
           

暫停

medPlay.pause();
           

重新開始

medPlay.stop();
medPlay=MediaPlayer.create(MainActivity.this,Uri.parse("/storage/emulated/0/data/cn.dlc.xiaoyao/msc1/海洋第二集.mp3"));

medPlay.start();
           

 4、擷取MP3檔案播放時長

public long getAudioFileVoiceTime(String filePath) {
    long mediaPlayerDuration = 0L;
    if (filePath == null || filePath.isEmpty()) {
        return 0;
    }
    MediaPlayer mediaPlayer = new MediaPlayer();
    try {
        mediaPlayer.setDataSource(filePath);
        mediaPlayer.prepare();
        mediaPlayerDuration = mediaPlayer.getDuration();
    } catch (IOException ioException) {
        LogPlus.i("lgq", ioException.getMessage());
    }
    if (mediaPlayer != null) {
        mediaPlayer.stop();
        mediaPlayer.reset();
        mediaPlayer.release();
    }
    return mediaPlayerDuration;
}
           

時長轉為分鐘，秒數顯示

int fz = (int)(getAudioFileVoiceTime(files[i].getPath())/1000)/60;
LogPlus.d("lgq==fz ==="+fz+"。。。。餘數==="+(getAudioFileVoiceTime(files[i].getPath())/1000)%60);
           

實作demo： https://download.csdn.net/download/meixi_android/12821205