ios - 使用 Parse API 将用户名设置为 Facebook 名称。

Question

目前这是我的 LogInViewController 中的代码，其中包含 Facebook 注册过程的处理程序和我希望将用户名和电子邮件地址设置为他们的 Facebook 名称和电子邮件地址的代码。

- (IBAction)fbButtonPressed:(id)sender
{
    NSArray *permissions =@[@"public_profile", @"email", @"user_friends"];

    [PFFacebookUtils logInWithPermissions:permissions block:^(PFUser *user, NSError *error) {
        if (!user) {
            NSLog(@"Uh oh. The user cancelled the Facebook login.");
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Log In Error" message:@"Uh oh. The user cancelled the Facebook login." delegate:nil cancelButtonTitle:nil otherButtonTitles:@"Dismiss", nil];
            [alert show];
        } else if (user.isNew) {
            NSLog(@"User signed up and logged in through Facebook!");
            FBRequest *request = [FBRequest requestForMe];
            [request startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                if (!error){
                    NSDictionary *userData = (NSDictionary *)result;

                    NSString *facebookID= userData[@"ID"];

                    NSURL *pictureURL = [NSURL URLWithString:[NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=large&return_ssl_resources=1", facebookID]];


                    NSMutableDictionary *userProfile = [NSMutableDictionary dictionaryWithCapacity:7];

                    if (facebookID){
                        userProfile[@"facebookID"] = facebookID;
                    }

                    if (userData[@"name"]) {

                        user.username = userProfile[@"name"];
                    }

                    if (userData[@"email"]){
                        user.email = userData[@"emai"];
                    }


                    [user saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
                        if (error){
                            NSLog(@"ERROR: %@ %@", error, [error userInfo]);

                        }else{
                            [self.navigationController popToRootViewControllerAnimated:YES];
                        }
                    }];



                }
            }];


        } else {
            NSLog(@"User logged in through Facebook!");
            [self.navigationController popToRootViewControllerAnimated:YES];
        }
    }];
}

Answer 1

输入错误

user.email = userData[@"emai"];

此外，对于名称，您尝试从 userProfile 中获取名称:

if (userData[@"name"]) {
  user.username = userProfile[@"name"];
}

应该是

if (userData[@"name"]) {
  user.username = userData[@"name"];
}