Getting username and profile picture from Facebook iOS 7

Question

I have read a lot of tutorials about getting information from Facebook, but I have failed so far. I just want to get username and profile picture from Facebook.

- (IBAction)login:(id)sender {     [FBSession openActiveSessionWithReadPermissions:@[@"email",@"user_location",@"user_birthday",@"user_hometown"]                                    allowLoginUI:YES                               completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {     switch (state) {       case FBSessionStateOpen:          [[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {             if (error) {                NSLog(@"error:%@",error);             } else {                // retrive user's details at here as shown below                NSLog(@"FB user first name:%@",user.first_name);                NSLog(@"FB user last name:%@",user.last_name);                NSLog(@"FB user birthday:%@",user.birthday);                NSLog(@"FB user location:%@",user.location);                NSLog(@"FB user username:%@",user.username);                NSLog(@"FB user gender:%@",[user objectForKey:@"gender"]);                NSLog(@"email id:%@",[user objectForKey:@"email"]);                NSLog(@"location:%@", [NSString stringWithFormat:@"Location: %@\n\n",                                                                          user.location[@"name"]]);               }         }];         break;         case FBSessionStateClosed:         case FBSessionStateClosedLoginFailed:            [FBSession.activeSession closeAndClearTokenInformation];         break;         default:         break;        }     } ];    } 

I used this code for get information, but I cannot get the any information. Can you help me about it? or Can you prefer a tutorial to read it? I have read tutorials on developer.facebook.com.

Thank you for your interest.

Answer 1

This is the simplest way I've found to get the user's profile picture.

[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *FBuser, NSError *error) {     if (error) {       // Handle error     }      else {       NSString *userName = [FBuser name];       NSString *userImageURL = [NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=large", [FBuser objectID]];     }   }]; 

Other query parameters that can be used are:

• type: small, normal, large, square
• width: < value >
• height: < value >
  • Use both width and height to get a cropped, aspect fill image

Answer 2

if ([FBSDKAccessToken currentAccessToken]) {     [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{ @"fields" : @"id,name,picture.width(100).height(100)"}]startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {         if (!error) {             NSString *nameOfLoginUser = [result valueForKey:@"name"];             NSString *imageStringOfLoginUser = [[[result valueForKey:@"picture"] valueForKey:@"data"] valueForKey:@"url"];             NSURL *url = [[NSURL alloc] initWithURL: imageStringOfLoginUser];             [self.imageView setImageWithURL:url placeholderImage: nil];         }     }]; }