gistfile1.txt

playAudio();
ivActionPlayVideo.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if (mediaType == 1) {

                    if (!mediaPlayer.isPlaying()) {
                        videoView.setVisibility(View.INVISIBLE);
                        ivViewTracker.setVisibility(View.VISIBLE);
                        ivActionPlayVideo.setVisibility(View.VISIBLE);
                        ivActionPlayVideo.setImageDrawable(ContextCompat.getDrawable(DetailActivityAudio.this, android.R.drawable.ic_media_pause));
                        startAudio();
                    } else {
                        videoView.setVisibility(View.GONE);
                        ivViewTracker.setVisibility(View.VISIBLE);
                        ivActionPlayVideo.setVisibility(View.VISIBLE);
                        ivViewTracker.setBackgroundResource(R.drawable.audio_detail_place_holder);
                        ivActionPlayVideo.setImageDrawable(ContextCompat.getDrawable(DetailActivityAudio.this, android.R.drawable.ic_media_play));
                        if (mediaPlayer != null) {
                            mediaPlayer.pause();
                            audioLength = mediaPlayer.getCurrentPosition();
                        }
                    }
                }
            }
        });
        
public void PlayAudio() {

        if (mediaPlayer == null) {
            mediaPlayer = new MediaPlayer();
        }
        if (!TextUtils.isEmpty(mediaFileUrl)) {
            try {
                mediaPlayer.reset();
                mediaPlayer.setDataSource(mediaFileUrl);
                mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
                mediaPlayer.prepare();
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalStateException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } else {
            Log.e(DetailActivityAudio.class.getName(), "mediaFileUrl:" + mediaFileUrl);
        }
    }
    
      private void startAudio() {
        mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            public void onPrepared(MediaPlayer mp) {

                //mp.seekTo(audioLength);
                mp.start();
            }
        });
    }