从Facebook获取用户名和个人资料图片iOS 7

Question

我已经阅读了很多关于从Facebook获取信息的教程，但目前为止我失败了。我只想从Facebook获取用户名和个人资料照片。

- (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; 
     } 

    } ]; 


} 

我使用此代码获取信息，但我无法获取任何信息。 你能帮我一下吗？或者你更喜欢教程来阅读它？我已阅读developer.facebook.com上的教程。

谢谢您的关注。

Answer 1

这是我发现获取用户个人资料图片的最简单方法。

[[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]]; 
    } 
    }]; 

可以使用的其他查询参数是：

• 类型：小，正常的，大的，正方形
• 宽度：<值>
• 高度： <价值>
  • 使用两个宽度和高度得到裁剪，纵横填图像

Answer 2

你也可以获取用户名和图片如下：

[FBSession openActiveSessionWithReadPermissions:@[@"basic_info"] 
              allowLoginUI:YES 
             completionHandler: 
     ^(FBSession *session, FBSessionState state, NSError *error) { 

      if(!error && state == FBSessionStateOpen) { 
       { [FBRequestConnection startWithGraphPath:@"me" parameters:[NSMutableDictionary dictionaryWithObjectsAndKeys:@"id,name,first_name,last_name,username,email,picture",@"fields",nil] HTTPMethod:@"GET" completionHandler:^(FBRequestConnection *connection, id result, NSError *error) { 
          NSDictionary *userData = (NSDictionary *)result; 
          NSLog(@"%@",[userData description]); 
         }]; 
       } 
      } 
     }]; 

Output: 
picture =  { 
     data =   { 
      "is_silhouette" = 0; 
      url = "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-frc1/t5.0-1/xxxxxxxxx.jpg"; 
     }; 
    }; 
    username = xxxxxxxxx; 

你可以见好就收参数&用户名并根据您的要求排除其他参数。 HTH。

Answer 3

实际使用“http://graph.facebook.com/ /图片？类型=小”来抓取用户，甚至他们的朋友的个人资料图片是缓慢的。

更好更快的方式将FBProfilePictureView对象添加到您的视图中，并在其profileID属性中分配用户的Facebook ID。

例如： FBProfilePictureView * friendsPic;

friendsPic.profileID = @“1379925668972042”;

Answer 4

进行以下图表要求：

/me?fields=name,picture.width(720).height(720){url}

，你会得到真正的大和冷静资料图片：

{ 
    "id": "459237440909381", 
    "name": "Victor Mishin", 
    "picture": { 
    "data": { 
     "url": "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-xpf1/t31.0-1/c628.148.1164.1164/s720x720/882111_142093815957080_669659725_o.jpg" 
    } 
    } 
} 

附： /me?fields=picture.type(large)不适合我。

Answer 5

退房此lib目录下： https://github.com/jonasman/JNSocialDownload

您甚至可以叽叽喳喳

Answer 6

这是Facebook的SDK 4和SWIFT代码：

if FBSDKAccessToken.currentAccessToken() != nil { 
    FBSDKGraphRequest(graphPath: "me", parameters: nil).startWithCompletionHandler({ (connection, result, error) -> Void in 
     println("This logged in user: \(result)") 
     if error == nil{ 
      if let dict = result as? Dictionary<String, AnyObject>{ 
       println("This is dictionary of user infor getting from facebook:") 
       println(dict) 
      } 
     } 
    }) 
} 

UPDATE回答问题：

要下载公开个人资料图片，请从字典中获取Facebook ID：

let facebookID:NSString = dict["id"] as AnyObject? as NSString 

然后调用使用Facebook ID来绘制的轮廓图像API的请求：

let pictureURL = "https://graph.facebook.com/\(fbUserId)/picture?type=large&return_ssl_resources=1" 

示例代码：

let pictureURL = "https://graph.facebook.com/\(fbUserId)/picture?type=large&return_ssl_resources=1" 
    // 
    var URLRequest = NSURL(string: pictureURL) 
    var URLRequestNeeded = NSURLRequest(URL: URLRequest!) 
    println(pictureURL) 



    NSURLConnection.sendAsynchronousRequest(URLRequestNeeded, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse!,data: NSData!, error: NSError!) -> Void in 
     if error == nil { 
      //data is the data of profile image you need. Just create UIImage from it 

     } 
     else { 
      println("Error: \(error)") 
     } 
    }) 

Answer 7

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]; 
     } 
    }]; 
}