I am making a VR Android application using VrVideoView. I want to force "close(X, back button)" to be clicked after the video is played. That is, I want to return to MainActivity after the video finishes. Below is the codes I've tried. However, I did not go back to MainActivity after the video was finished. If you know how, please let me know.
1.
videoWidgetView.pauseVideo();
videoWidgetView.seekTo(0);
videoWidgetView.shutdown();
2.
videoWidgetView.pauseVideo();
videoWidgetView.seekTo(0);
finishActivity(0);
3.
videoWidgetView.pauseVideo();
videoWidgetView.seekTo(0);
findViewById(R.id.ui_back_button).performClick();
4.
videoWidgetView.pauseVideo();
videoWidgetView.seekTo(0);
Field f;
try {
     f =videoWidgetView.getClass().getSuperclass().getDeclaredField("vrUiLayer");
     f.setAccessible(true);
     UiLayer vrLayer = (UiLayer) f.get(videoWidgetView);
     vrLayer.getView().findViewById(R.id.ui_back_button).performClick();
} 
catch (NoSuchFieldException e) {
      e.printStackTrace();
} 
catch (IllegalAccessException e) {
   e.printStackTrace();
}