Sign out from google and facebook in android application

Question

I have merged the Facebook and Google sign-up processes utilizing their own workflows. But after signing successfully, I want to start a separate activity, and the user can do the same for a number of other activities. I've utilized an action bar to provide users the option to log out of either of their logged-in accounts. How do I sign the user out if I'm engaged in anything else from the main activity? I'm getting an exception and can't transmit the session reference for Facebook and the API client reference for Google to another activity. Thank you. I appreciate it.

Answer 1

Just for the record. This is how I've signed a user out of a HomeActivity that isn't LoginActivity. The signOut() function in the LoginActivity must be called either from the onCreate() or onStart() method, and the LoginActivity must be started from another Activity (in my example, HomeActivity) when you want the user to sign out.