I want to create an app that would display some text on screen independent of what app is running behind. Like in Settings--> Developers options --> show CPU usage. I am not understanding what should I search for this. Please guide me.
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You needs an app using the system overlay permission. See Creating a system overlay window (always on top) for an example.
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hello. Its displaying an overlay. but the background clicks are not working. – Manasi Aug 07 '14 at 10:09