According to the android documentation (https://developer.android.com/guide/components/activities/background-starts) this shouldn´t even be "possible" anymore. I checked many posts already but they all seem too old or say this isn´t really feasible or easily doable anymore. But still, there are apps doing this today like (StayFree for example). I want to start the activity with a running service that checks data in the background.
What I would like to know or I think is needed: Permission like display over other apps (Something like ACTION_MANAGE_OVERLAY_PERMISSION)
A service for which is running in the background while the app is not open and starts the activity from the background.
Attention: I want the overlay/activity to be a normal activity and not a system alert window.
I tried many things but I am still mainly a C# Dev so help I would appreciate your help thanks!
