Facebook already authorized callback issue

The second time I tried to authorize an app in Facebook it gives me back a window

You have already authorized ap开发者_JAVA百科p name. Press okay to continue.

The question is what is called back/delegate that is called after I press okay, because I somehow need a way to remove the login view controller after this

The callback is the same as when you wasn't authorized. Same process.

Back in your application you don't even have to (and even can't) make the distinction.

In your UIApplicationDelegate, be sure that the - (BOOL)application:handleOpenURL: method calls - (BOOL)handleOpenURL: on the Facebook object.