在iOS中从Facebook获取用户的个人信息 [英] Getting user's Personal info from Facebook in iOS

问题描述

我对C和iPhone开发环境非常新颖。

我正在我的应用程序中实现Facebook登录，以获取用户名，电子邮件和个人资料图片。我已经成功地实现了登录部分，并且已经收到了该人的姓名和用户ID。

现在我想从Facebook获取用户的电子邮件和个人资料图片。但是我没有任何想法如何得到它。我正在使用Facebook IOS SDK v4.0。

当我有用户ID时，如何从Facebook获取用户的个人资料图片和电子邮件ID？

解决方案

要获取用户电子邮件ID，您必须在登录时请求电子邮件的权限。

  FBSDKLoginButton * loginView = [[FBSDKLoginButton alloc] init]; 
 loginView.readPermissions = @ [@email]; 
 loginView.frame = CGRectMake（100，150，100，40）; 
 [self.view addSubview：loginView]; 
  

您可以使用GraphPath在新SDK中获取用户电子邮件标识。

  [[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：nil] 
 startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError * error） {
 
 if（！error）{
 NSLog（@获取用户：％@和电子邮件：％@，结果，结果[@电子邮件]）; 
} 
}]; 
} 
  

结果会让你所有的用户详细信息和结果[@email]将获得登录用户的电子邮件。

要获取个人资料图片，您可以使用

  NSURL * url = [NSURL URLWithString：[NSString stringWithFormat：@https://graph.facebook.com/%@/picture?type=normal，result [@id]]]; 
 NSData * data = [NSData dataWithContentsOfURL：url]; 
 _imageView.image = [UIImage imageWithData：data]; 
  

或者您也可以使用FBSDKProfilePictureView通过传递用户个人资料ID来获取个人资料图片：

  FBSDKProfilePictureView * profilePictureview = [[FBSDKProfilePictureView alloc] initWithFrame：_imageView.frame]; 
 [profilePictureview setProfileID：result [@id]]; 
 [self.view addSubview：profilePictureview]; 
  

请参阅： https://developers.facebook.com/docs/facebook-login/ios/v2.3#profile_picture_view

或者你也可以通过传递参数

  [[FBSDKGraphRequest alloc] initWithGraphPath：@me 
参数：@ {@fields：@picture，email}] 
 startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError * error）{
 if（！error） {
 NSString * pictureURL = [NSString stringWithFormat：@％@，[result objectForKey：@picture]]; 
 
 NSLog（@email is％@，[result objectForKey：@email]）; 
 
 NSData * data = [NSData dataWithContentsOfURL：[NSURL URLWithString：pictureURL]]; 
 _imageView.image = [UIImage imageWithData：data]; 
 
} 
 else {
 NSLog（@％@，[error localizedDescription]）; 
} 
}]; 
  

I am quite new to objective-C and iPhone Development environment.

I am implementing Facebook login in my app to get User's name, Email and profile Picture. I have successfully implemented login Part and have received name and User ID of the person.

Now i want to get User's Email and Profile Picture from Facebook.But i am not having any Idea how to get it.I am using Facebook IOS SDK v4.0.

How can i fetch User's Profile picture and Email Id from Facebook when i am having User ID?

解决方案

To get user Email ID you must ask permission for email while logging.

FBSDKLoginButton *loginView = [[FBSDKLoginButton alloc] init];
loginView.readPermissions =  @[@"email"];
loginView.frame = CGRectMake(100, 150, 100, 40);
[self.view addSubview:loginView];

You can get user email Id in New SDK using GraphPath.

[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:nil]
         startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {

             if (!error) {
                 NSLog(@"fetched user:%@  and Email : %@", result,result[@"email"]);
         }
         }];
    }

result would get you all the user Details and result[@"email"] would get you the email for logged in user.

To get Profile picture you can use

NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=normal",result[@"id"]]];
NSData  *data = [NSData dataWithContentsOfURL:url];
_imageView.image = [UIImage imageWithData:data]; 

or u can also use FBSDKProfilePictureView to get profile Picture by passing user profile Id:

FBSDKProfilePictureView *profilePictureview = [[FBSDKProfilePictureView alloc]initWithFrame:_imageView.frame];
[profilePictureview setProfileID:result[@"id"]];
[self.view addSubview:profilePictureview];

Refer to :https://developers.facebook.com/docs/facebook-login/ios/v2.3#profile_picture_view

or u can also get both by passing as parameters

[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me"
                                           parameters:@{@"fields": @"picture, email"}]
         startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
             if (!error) {
                 NSString *pictureURL = [NSString stringWithFormat:@"%@",[result objectForKey:@"picture"]];

                 NSLog(@"email is %@", [result objectForKey:@"email"]);

                 NSData  *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:pictureURL]];
                 _imageView.image = [UIImage imageWithData:data];

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

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