AssetFileDescriptor fileDescriptor = getResources().openRawResourceFd(R.raw.my_movie);
  introMoviePlayer = new MediaPlayer();
  introMoviePlayer.setDataSource(fileDescriptor.getFileDescriptor(), fileDescriptor.getStartOffset(), fileDescriptor.getDeclaredLength());
  introMoviePlayer.prepare();

MediaPlayer mediaPlayer = new MediaPlayer();
FileInputStream fis = null;
try {
    fis = new FileInputStream(mp3File);
    mediaPlayer.setDataSource(fis.getFD());
    mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
    mediaPlayer.prepare();
}   finally {
    if (fis != null) {
        try {
            fis.close();
        } catch (IOException ignore) {
        }
    }

}

public void playSound(String soundPath){
    MediaPlayer m = new MediaPlayer();

    m.setOnCompletionListener(new OnCompletionListener() {

        @Override
        public void onCompletion(MediaPlayer mp) {
            mp.release();
        }

    });

    try {

        AssetFileDescriptor descriptor = mContext.getAssets().openFd(soundPath);
        m.setDataSource(descriptor.getFileDescriptor(), descriptor.getStartOffset(),
                        descriptor.getLength());

        descriptor.close();

        m.prepare();
        m.setVolume(100f, 100f);
        m.setLooping(false);
        m.start();

    } catch (Exception e) {
        //Your catch code here.
    }
 }

mMediaPlayer = new MediaPlayer();
            mMediaPlayer.setDataSource(fileDescriptor.getFileDescriptor(), fileDescriptor.getStartOffset(), fileDescriptor.getDeclaredLength());
            mMediaPlayer.setDisplay(holder);
            mMediaPlayer.prepare();

private MediaPlayer mp;
private final static String fileName = "ring";

try
        {
            mp = new MediaPlayer();
            mp.setAudioStreamType(AudioManager.STREAM_RING); //set streaming according to ur needs
            mp.setDataSource(Context, Uri.parse("android.resource://yourAppPackageName/raw/"+fileName));
            mp.setLooping(true);
            mp.prepare();
            mp.start();

        } catch (Exception e)
        {
            System.out.println("Unable to TunePlay: startRingtone(): "+e.toString());
        }

try
    {
        if (!(mp == null) && mp.isPlaying())
        {
            mp.stop();
            mp.release(); //its a very good practice
        }
    }
    catch (Exception e)
    {
        System.out.println("Unable to  TunePlay: stopRingtone():"+e.toString());
    }

public String getEncodedURL(String urlStr) throws Exception
{
            URL url = new URL(urlStr);
            URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
            urlStr = uri.toASCIIString();
            return urlStr;
}

mMediaPlayer = MediaPlayer.create(this, R.raw.a_video_or_audio_file);
mMediaPlayer.start();

MediaPlayer mp = ...;
Uri uri = Uri.parse("android.resource://com.example.myapp/" + R.raw.my_movie");
mp.setDataSourceUri(this, uri);