Good day. I am writing live wallpapers, and I need a double-click on the desktop to load an activity with additional information, while having my live wallpapers in the background. In principle, I solved the problem by making a theme in which the background is translucent, but then you can see all the shortcuts on the desktop that prevent the display of information. In principle, I have already come to terms with this, but today I noticed when the alarm clock rang - it implements what I need - my live wallpapers, which work in the background, and on top two buttons, move and turn off. There are no shortcuts behind. How did they implement it?