Android SDK, can't show toolbox, room name, filmstrip

I have a customized Android device(8.1), compiled using the Android SDK demonstration project. When I run it, I found that on this device, clicking the screen will show and hide the mask layer, but it can’t show toolbox, room name, filmstrip,just one video

The same version runs ok on other normal mobile phones.
before click

!
after click,show mask layer
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