從Facebook獲取用戶名和個人資料圖片iOS 7

Question

我已經閱讀了很多關於從Facebook獲取信息的教程，但目前爲止我失敗了。我只想從Facebook獲取用戶名和個人資料照片。

- (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; 
     } 

    } ]; 


} 

我使用此代碼獲取信息，但我無法獲取任何信息。 你能幫我一下嗎？或者你更喜歡教程來閱讀它？我已閱讀developer.facebook.com上的教程。

謝謝您的關注。

Answer 1

這是我發現獲取用戶個人資料圖片的最簡單方法。

[[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]]; 
    } 
    }]; 

可以使用的其他查詢參數是：

• 類型：小，正常的，大的，正方形
• 寬度：<值>
• 高度： <價值>
  • 使用兩個寬度和高度得到裁剪，縱橫填圖像

Answer 2

你也可以獲取用戶名和圖片如下：

[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; 

你可以見好就收參數&用戶名並根據您的要求排除其他參數。 HTH。

Answer 3

實際使用「http://graph.facebook.com/ /圖片？類型=小」來抓取用戶，甚至他們的朋友的個人資料圖片是緩慢的。

更好更快的方式將FBProfilePictureView對象添加到您的視圖中，並在其profileID屬性中分配用戶的Facebook ID。

例如： FBProfilePictureView * friendsPic;

friendsPic.profileID = @「1379925668972042」;

Answer 4

進行以下圖表要求：

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

，你會得到真正的大和冷靜資料圖片：

{ 
    "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)不適合我。

Answer 5

退房此lib目錄下： https://github.com/jonasman/JNSocialDownload

您甚至可以嘰嘰喳喳

Answer 6

這是Facebook的SDK 4和SWIFT代碼：

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回答問題：

要下載公開個人資料圖片，請從字典中獲取Facebook ID：

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

然後調用使用Facebook ID來繪製的輪廓圖像API的請求：

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

示例代碼：

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]; 
     } 
    }]; 
}