Mobile application with access rights, user authorization?

Question

Android

There was a question for implementation of limited functionality.
Now the user has access to all the functionality, but now there will be an additional activity where the user can log in and he will already have full access, and if he does not log in, then only to some components of the application.
So this is how it is implemented on mobile applications?
I plan that the authorization check on the server will be through a token (bearer token, stateless)

Answer 1

the simplest thing is to make a BaseActivity in which you will check whether the user is logged in, when he logged in, etc., and if you need to throw him on the login screen