我想在背面按展示非页内广告

Question

我想在“后按按钮”上显示插页式广告，然后再返回活动。我该如何更改。

@Override
public void onBackPressed() {
    if (JZVideoPlayer.backPress())

    {
        return;
    }


    Intent intent = new Intent();
    intent.putExtra("VIDEOPOS", mVideoModel.getVView());
    intent.putExtra("POS", getIntent().getIntExtra("VIDEO_POSITION", 0));
    setResult(2, intent);
    finish();//finishing activity
    super.onBackPressed();
 }
}