Facebook Login with SDK4.0 and Swift

AppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    }

    func application(application: UIApplication,
                     openURL url: NSURL,
                     sourceApplication: String?,
                     annotation: AnyObject?) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(
            application,
            openURL: url,
            sourceApplication: sourceApplication,
            annotation: annotation)
    }

    func applicationWillResignActive(application: UIApplication) {
    }

    func applicationDidEnterBackground(application: UIApplication) {
    }

    func applicationWillEnterForeground(application: UIApplication) {
    }

    func applicationDidBecomeActive(application: UIApplication) {
        FBSDKAppEvents.activateApp()
    }

    func applicationWillTerminate(application: UIApplication) {
    }
}

ViewController.swift

import UIKit

class ViewController: UIViewController, FBSDKLoginButtonDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        if (FBSDKAccessToken.currentAccessToken() != nil) {
            // User is already logged in, do work such as go to next view controller.
        } else {
            let loginView : FBSDKLoginButton = FBSDKLoginButton()
            self.view.addSubview(loginView)
            loginView.center = self.view.center
            loginView.readPermissions = ["public_profile", "email", "user_friends"]
            loginView.delegate = self
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // Facebook Delegate Methods
    
    func loginButton(loginButton: FBSDKLoginButton!,
                     didCompleteWithResult result: FBSDKLoginManagerLoginResult!,
                     error: NSError!) {
        println("User Logged In")
        
        if ((error) != nil)
        {
            // Process error
        } else if result.isCancelled {
            // Handle cancellations
        } else {
            // If you ask for multiple permissions at once, you
            // should check if specific permissions missing
            if result.grantedPermissions.contains("email")
            {
                // Do work
            }
        }
    }
    
    func loginButtonDidLogOut(loginButton: FBSDKLoginButton!) {
        println("User Logged Out")
    }

    func returnUserData()
    {
        let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
        graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in
            
            if ((error) != nil)
            {
                // Process error
                println("Error: \(error)")
            }
            else
            {
                println("fetched user: \(result)")
                let userName : NSString = result.valueForKey("name") as! NSString
                println("User Name is: \(userName)")
                let userEmail : NSString = result.valueForKey("email") as! NSString
                println("User Email is: \(userEmail)")
            }
        })
    }
}

Did you get the name of the user when you run it ? I didn't get it ! I could only view the user's image