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Asked: 2026-06-08T03:31:56+00:00

I want to create a button which will be shown on top of all

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I want to create a button which will be shown on top of all apps.
something like this

as you can see, there is a button at top left corner. it can receive touch events and touch events can be received outside it by other apps.

I tried to use Theme.Translucent.NoTitleBar to my activity but it does not helped. I also set size to my button to [100, 100] but other activity behind it can not receive touch events. I think that the problem is in activity’s window. it’s size does not equel activity’s size.
any help please

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1 Answer

  1. Editorial Team

    hatcyl in Create a UI or a widget that sees on top of all Application in Android? says:

    If you want something to be clickable, you can display it on top of
    anything except the lockscreen.

    You would to use a service and WindowManager to show a button on every App.

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