android - Show Google Play Games Welcome Dialog on all app launches - Stack Overflow

The best example of what I am trying to attempt can be described by the behavior of the simcity app (and I'm sure many others that I may be unaware of also using the google sign in for Google play

Developing Android Apps

SOLVED! How To Fix Android AppSquare.net / NovelCamp.net Malware Chrome Browser Hijack

Pop up every time you start the game, requiring google play games in order to play it. Google play is not necessary at all to play the game. : r/assholedesign

Planet Mozilla

From ERMAC to Hook: Investigating the technical differences between two Android malware variants, NCC Group Research Blog

Per-app language preferences

Cases-Quick App Development-Quick App

Android - DialogFragment Doesn't Display The Entering Animation - Stack Overflow

How to change Android Studio default Welcome Screen/Splash Screen? - Stack Overflow