How to overlay views in other apps
android
Solution
this called
Draw Over Other Apps
check these answers
"DRAW OVER OTHER APP" is which permission in android
How to draw a view on top of everything?
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Problem
Where do I start? I don't know what functions or permissions will I use to make this. No root required. The view look like this, the camera button on the right side, it is floating and visible to other apps, if you push it, it will capture a screenshot. Note: I will not make make a screenshot app, this is only an example of what I want to achieve.