How do multi-account programs for Android work?

Question

Android

How do programs like TweetCaster and UberSocial work?
Is it possible to change the file for authentication in other applications?

Answer 1

From the point of view of me, as a programmer, writing this would be fine with the ~/.myclientprofiles folder, where ./user1login, ./user2login and they already contain authorization tokens and other user-dependent settings

Answer 2

There was an interesting topic on Habré
habrahabr.ru/post/210632