Re: Solution
There's already a specific Android permission for this "Draw Over Other Apps".
That permission is something unrelated. This article is about apps with no special permissions being able to intercept the whole activity, not draw over a specific part of another app.
And for the record, "draw over other apps" is very dangerous and should only be granted sparingly to apps you really trust. Unless I trust an app AND the app has a good reason for needing it, I do not install anything asking for this permission.
Biting the hand that feeds IT
