title: have info from Facebook with swift?
body: <p>My code work for login with Facebook, but I can take the info, only the name e last name, I want the email and facebookid. How can I get that? Thanks</p>
  
  <pre><code>class ViewController: UIViewController, FBLoginViewDelegate {
  @IBOutlet var fbLoginView : FBLoginView!
  
  override func viewDidLoad() {
      super.viewDidLoad()
  
      self.fbLoginView.delegate = self
      self.fbLoginView.readPermissions = ["public_profile", "email", "user_friends"]
  }
  @IBOutlet weak var etichetta: UILabel!
  
  override func didReceiveMemoryWarning() {
      super.didReceiveMemoryWarning()
  
      // Dispose of any resources that can be recreated.
  }
  func loginViewShowingLoggedInUser(loginView : FBLoginView!) {
      println("User Logged In")
      println("This is where you perform a segue.")
  }
  
  func loginViewFetchedUserInfo(loginView : FBLoginView!, user: FBGraphUser){ //subito dopo
      println("User birthday: \(user.birthday)")//not work is nil
      println("User name: \(user.name)")
      println("User username: \(user.objectID)")//not work is nil
  }
  
  func loginViewShowingLoggedOutUser(loginView : FBLoginView!) {
      println("User Logged Out")
  }
  
  func loginView(loginView : FBLoginView!, handleError:NSError) {
      println("Error: \(handleError.localizedDescription)")
  }
  </code></pre>