Vitamio.isInitialized(getApplicationContext());

mMediaController = new io.vov.vitamio.widget.MediaController(this);//实例化控制器

mVideoView.setVideoPath(path);
        mVideoView.setMediaController(mMediaController);

        //这里可选
        mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mediaPlayer) {
                mediaPlayer.setPlaybackSpeed(1.0f);
            }
        });