videoView.setOnPreparedListener(new OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                int topContainerId = getResources().getIdentifier("mediacontroller_progress", "id", "android");
                seekbar = (SeekBar) mediaController.findViewById(topContainerId);

                mp.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {
                    @Override
                    public void onBufferingUpdate(MediaPlayer mp, int percent) {
                        if (percent<seekbar.getMax()) {
                            seekbar.setSecondaryProgress(percent);
                        }
                    }
                });
            }
        });

videoView.setOnPreparedListener(new OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                int topContainerId = getResources().getIdentifier("mediacontroller_progress", "id", "android");
                seekbar = (SeekBar) mediaController.findViewById(topContainerId);

                mp.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {
                    @Override
                    public void onBufferingUpdate(MediaPlayer mp, int percent) {
                        if (percent<seekbar.getMax()) {
                            seekbar.setSecondaryProgress(percent);
                            seekbar.setSecondaryProgress(percent/100);
                        }
                    }
                });
            }
        });

mediaPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {
        @Override
        public void onBufferingUpdate(MediaPlayer mediaPlayer, int percent) {
            double per = percent * 1.00;
            per = (per / 100);
            double f = (seekBar.getMax() * 1.00);
            f = f * per;
            if (percent < binder.seekBar.getMax()) {
                seekBar.setSecondaryProgress((int) f);
            }
        }
    });