title: What if Twitter or Facebook accounts are not configured on iOS 6?
body: <p>Does anybody know a smart way to bring the user to enter their Facebook or Twitter account login information, if they aren't already logged in? For example, a user tries to log in my application with Facebook without configuring the Facebook account in the iOS settings. Can I ask him to do it with an alert, for example, but how can I bring him to the exact section of settings for that?</p>