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3

That chat bubble is there because you granted Messenger the permission "draw over other apps". In simple terms, call it overlay. The qualified name of the permission is android.permission.SYSTEM_ALERT_WINDOW. Allows an app to create windows using the type TYPE_SYSTEM_ALERT, shown on top of all other apps. Very few apps should use this permission; these ...


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Facebook does a lot more than just bloat your viewing window. Have you seen all of the permissions it requires?! The methods Facebook use to add chat bubbles are called Blocking Overlays. They are built-in feature of Android. There's an app called Tasker that well visualizes these features. Tasker is an automation app, but you can also create activities ...



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