Video free multi window size is not changed in android 7.1

问题

I'm working on free multi window in android 7.1.

With test application free multi window is working perfect.(please fine screenshot 1)

Now Im playing video using MX player app, at that time free multi window size is not effecting.(please fine screenshot 2)

String mxPlayer = "com.xx.xx.ad";
    intent1 = new Intent(Intent.ACTION_VIEW);
    intent1.setPackage(mxPlayer);
    Uri videoUri = Uri.parse("http://xxx.75.135/Files/xxx/1_video/ideo.m3u");
    intent1.setDataAndType(videoUri, "application/mp4");
            startActivity(intent1, getActivityOptions(ApplicationType.CONTEXT_MENU).setLaunchBounds(new Rect(0, 0, 720, 512)).toBundle());

Could you please guide me to run video window size like attached image 1.

来源：https://stackoverflow.com/questions/47647041/video-free-multi-window-size-is-not-changed-in-android-7-1