I am not able to fetch user data from Facebook in iOS

Question

I am new to iPhone programming.Using below code i am login into Facebook and fetching data.But here problem is if click on the Loginwithfacebook button Facebook dialog box o

Answer 1

If you are willing to, you can also do it with Parse :

- (IBAction)facebookRegistrationButtonPressed {

        // The permissions requested from the user

        NSArray *permissionsArray = @[@"email", @"user_about_me", @"publish_actions", @"status_update", @"manage_pages", @"publish_stream"];

        // Login PFUser using Facebook
        [PFFacebookUtils logInWithPermissions:permissionsArray block:^(PFUser *user, NSError *error) {
            if (!user) {
                if (!error) {
                    NSLog(@"Uh oh. The user cancelled the Facebook login.");
                } else {
                    NSLog(@"Uh oh. An error occurred: %@", error);
                }
            } else if (user.isNew) {
                NSLog(@"User with facebook signed up and logged in!");
                [self processFacebookRequest];
            } else {
                NSLog(@"User with facebook logged in!");
                [self processFacebookRequest];
            }
        }];
    }

    - (void)processFacebookRequest {
        FBRequest *request = [FBRequest requestForMe];
        // Send request to Facebook
        [request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
            if (!error) {
                // result is a dictionary with the user's Facebook data
                NSDictionary *userData = (NSDictionary *)result;
                NSString * email = [result objectForKey:@"email"];

                NSString *facebookID = userData[@"id"];
                NSLog(@"facebookID = %@", facebookID);

            } else {
                NSLog(@"error : %@", error.localizedDescription);
            }
        }];
    }