Fbsdkaccesstoken Currentaccesstoken Is Not Being Updated After Log In

FBSDKAccessToken currentAccessToken is not being updated after log in

Please check your appDelegate class and implement all the required methods of FB SDK. I am attaching a screenshot for the same.

FBSDKAccessToken currentAccessToken nil after quitting app

The problem is because you are calling for FBSDKAccessToken.currentAccessToken() before having called

FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)

You can check for the access token anytime after calling the above line.

EDIT: Explanation

The above line lets the Facebook SDK process the launchOptions and extract the necessary information which it will require to recognise and persist the user for the application.

In cases where the user is already logged in, this simply initialises the Facebook SDK which in turn logs in the user on the basis of persisted data.

FBSDKAccessToken currentAccessToken doesn't work

I resolved it by retrieving the token string. If the token string is nil then i'll allow user to login or else i'll navigate to home page.

Some thing like this.

NSString *tokenValue = [[FBSDKAccessToken currentAccessToken] tokenString];

if ([tokenValue length] == 0)
{

    NSLog(@"Allow user to login");
}

else
{

 NSLog(@"User is Already logged in");

}

Hope this helps.

Thanks.

FBSDKAccessToken.currentAccessToken() found nil every time

Do following changes in your code, It will work

 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
        self.returnUserData()

                }
            }   
        }

call this method to get user email id

    func returnUserData()
        {
            let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters:["fields":"name,email,first_name,last_name"])
            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)")
                }
            })
        }

please remove this method

func application(application: UIApplication,
    openURL url: NSURL, options options: [String: AnyObject]) -> Bool {
        return GIDSignIn.sharedInstance().handleURL(url,
            sourceApplication: options[UIApplicationOpenURLOptionsSourceApplicationKey]! as! String,
            annotation: options[UIApplicationOpenURLOptionsAnnotationKey])
}

change this method implementation

func application(application: UIApplication,
        openURL url: NSURL,
        sourceApplication: String?,
        annotation: AnyObject?) -> Bool {
if url.scheme == "fbxxxxx"
{
//xxxxx is your APP ID
return FBSDKApplicationDelegate.sharedInstance().application(
                application,
                openURL: url,
                sourceApplication: sourceApplication,
                annotation: annotation)
}else if url.scheme == "com.googleusercontent.apps.xxxxxx"
  {
// string is reverse client ID
 return GIDSignIn.sharedInstance().handleURL(url,
                sourceApplication:  sourceApplication,
                annotation: annotation)
   }
 }

Facebook SDK: AccessToken.CurrentAccessToken always null, even after logging in

Thanks to the question referenced by @VijayMasiwal I was able to discover the problem. I had forgot to initialize Facebook in the App Delegate.

Here is how the FinishedLaunching method should be implemented when using Facebook:

public override bool FinishedLaunching (UIApplication application, NSDictionary launchOptions)
{
    Settings.AppID = kFacebookAppID;
    Settings.DisplayName = kFacebookDisplayName;

    // I had forgotten this line :)
    return ApplicationDelegate.SharedInstance.FinishedLaunching (application, launchOptions);
}

Hope that helps.

Why is [FBSDKAccessToken currentAccessToken] is nil after login in with permissions

For anyone, browsing though this, I was using FSDKLoginButton as an instance variable in order to access it through different routines. That is why it wasn't working. You have to declare the button as google said.

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