In iOS 6, check if a person is logged in to a social network?
问题 Is there a way to check if a user actually is logged in to facebook or twitter in the operating system. The reason I want to do this is to fall back on sharing in the application by for example using facebooks SDK instead to share, without asking the user to log in again. I actually thought that the code: [SLComposeViewController isAvailableForServiceType:SLServiceTypeFacebook]; did exactly that, but apparently it only shows an alert if the user has not logged in. This only occurs when the