How can I add my app to mobile accounts so that I can auto-login when I open it, without having to enter credentials. I go to the mobile section in accounts and I give add account, s that my app comes out and add an account.
The app like Facebook or WhatsApp use this procedure, you can "close" the app that you open when you open it, since it has added in the account section your email account and password. I want my app to do this so that an account is added whatever it is and then keep the session open for me.
I have researched something but I do not know if I'm on the right track and I do not clarify either: link link