FBSDK (New Facebook SDK 4.0) Implementation is not working for Login with Facebook

Question

I am using this following block which is mentioned in Facebook Developer. But when my App callbacks from Browser then it

Answer 1

To get user profile try this

if ([FBSDKAccessToken currentAccessToken])
                {
                    [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:nil]
                     startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id user, NSError *error)
                     {
                         if (!error) {
                             NSDictionary *dictUser = (NSDictionary *)user;
                             self.txfName.text      = [dictUser objectForKeyNotNull:@"name"];
                             self.txfEmail.text     = [dictUser objectForKeyNotNull:@"email"];
                             self.txfUserName.text  = [[dictUser objectForKey:@"first_name"] lowercaseString];
                             NSLog(@"image : https://graph.facebook.com/%@/picture?type=small",[dictUser objectForKeyNotNull:@"id"]);
                         }
                     }];
                }

Hope this would help you