Facebook iOS SDK 和 swift：如何获取用户的个人资料图片

Question

我已经在 Xcode 6 中集成了 Facebook sdk（swift）。在登录期间，我请求 public_profile 权限：

FBSession.openActiveSessionWithReadPermissions(["public_profile"], allowLoginUI: true, completionHandler: {
...
...

所以我请求用户的信息：

FBRequestConnection.startForMeWithCompletionHandler { (connection, user, error) -> Void in
...
...

为什么用户对象不包含头像？如何获取用户个人资料图片？它不是 public_profile?

的一部分

我得到以下信息：

2015-01-25 01:25:18.858 Test[767:23804] {
"first_name" = xxx;
gender = xxx;
id = xxxxxxxxx;
"last_name" = xxxxxx;
link = "https://www.facebook.com/app_scoped_user_id/xxxxxxxxx/";
locale = "xxxxx";
name = "xxxxxxx xxxxxxx";
timezone = 1;
"updated_time" = "2013-12-21T18:45:29+0000";
verified = 1;
}

P.S: xxx 隐私

Answer 1

个人资料图片实际上是 public，您只需将用户 ID 添加到 Facebook 指定的个人资料图片 url 地址即可，例如：

var userID = user["id"] as NSString     
var facebookProfileUrl = "http://graph.facebook.com/\(userID)/picture?type=large"

这个特定的 url 地址应该 return 用户个人资料图片的 "large" 版本，但还有更多照片选项可用 in the docs。

Answer 2

使用 Facebook SDK 4.0，您可以使用：

Swift:

    let pictureRequest = FBSDKGraphRequest(graphPath: "me/picture?type=large&redirect=false", parameters: nil)
    pictureRequest.startWithCompletionHandler({
        (connection, result, error: NSError!) -> Void in
        if error == nil {
            println("\(result)")
        } else {
            println("\(error)")
        }
    })

Objective-C:

FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc]
                                  initWithGraphPath:[NSString stringWithFormat:@"me/picture?type=large&redirect=false"]
                                  parameters:nil
                                  HTTPMethod:@"GET"];
    [request startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection,
                                          id result,
                                          NSError *error) {
    if (!error){
       NSLog(@"result: %@",result);}
    else {
       NSLog(@"result: %@",[error description]);
     }}];

Answer 3

@Brandon Gao 解决方案给了我一个 200X200 的缩略图... 为了获得更大的尺寸，我使用 FBSDKProfile 来获得一个具有尺寸的路径，它也更加模块化而不是硬编码（尽管我确实必须输入 graph.facebook.com 部分...)

let size = CGSize(width: 1080, height: 1080)
let path = FBSDKProfile.currentProfile().imagePathForPictureMode(.Normal, size: size)
let url = "https://graph.facebook.com/\(path)"
Alamofire.request(.GET, url, parameters: nil, encoding: ParameterEncoding.URL).response { 
    (request, response, data, error) -> Void in
    if  let imageData = data as? NSData,
        let image = UIImage(data: imageData) {
            self.buttonImage.setImage(image, forState: .Normal)
    }
}

虽然我没有得到 1080X1080 的图像，但 FB 给了我一个 1117X1117...:\

Answer 4

如果你想得到更大的图片，只需将 "type = large" 替换为 width=XX&height=XX

但你能得到的最大图片是原图

FBSDKGraphRequest *request = [[FBSDKGraphRequest alloc] 
                              initWithGraphPath:@"me/picture?width=1080&height=1080&redirect=false" 
                              parameters:nil 
                              HTTPMethod:@"GET"]; 

[request startWithCompletionHandler:^(
                            FBSDKGraphRequestConnection *connection,
                            id result, 
                            NSError *error) { 
if (!error) 
{ 
   NSLog(@"result = %@",result);
   NSDictionary *dictionary = (NSDictionary *)result; 
   NSDictionary *data = [dictionary objectForKey:@"data"]; 
   NSString *photoUrl = (NSString *)[data objectForKey:@"url"]; 
} 
else 
{ 
   NSLog(@"result = %@",[error description]); } 
}];

Answer 5

如果您想在与其他用户信息相同的请求中获取图片，您可以在一个图形请求中完成所有操作。有点乱，但总比再提出一个要求好。

多Swift3方法

let request = FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, email, picture.type(large)"])
let _ = request?.start(completionHandler: { (connection, result, error) in
    guard let userInfo = result as? [String: Any] else { return } //handle the error

    //The url is nested 3 layers deep into the result so it's pretty messy
    if let imageURL = ((userInfo["picture"] as? [String: Any])?["data"] as? [String: Any])?["url"] as? String {
        //Download image from imageURL
    }
})

Swift 2

let request = FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, email, picture.type(large)"])
request.startWithCompletionHandler({ (connection, result, error) in
    let info = result as! NSDictionary
    if let imageURL = info.valueForKey("picture")?.valueForKey("data")?.valueForKey("url") as? String {
        //Download image from imageURL
    }
})

Answer 6

对于 swift，这是获取特定尺寸照片 url 的简单方法：

    let params: [NSObject : AnyObject] = ["redirect": false, "height": 800, "width": 800, "type": "large"]
    let pictureRequest = FBSDKGraphRequest(graphPath: "me/picture", parameters: params, HTTPMethod: "GET")
    pictureRequest.startWithCompletionHandler({
        (connection, result, error: NSError!) -> Void in
        if error == nil {
            print("\(result)")


           let dictionary = result as? NSDictionary
           let data = dictionary?.objectForKey("data")
           let urlPic = (data?.objectForKey("url"))! as! String
           print(urlPic)



        } else {
            print("\(error)")
        }
    })

}

Answer 7

您可以使用此代码 For Swift 3.0 获取用户信息

  func getFbId(){
if(FBSDKAccessToken.current() != nil){
FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id,name , first_name, last_name , email,picture.type(large)"]).start(completionHandler: { (connection, result, error) in
    guard let Info = result as? [String: Any] else { return } 


    if let imageURL = ((Info["picture"] as? [String: Any])?["data"] as? [String: Any])?["url"] as? String {
        //Download image from imageURL
    }
if(error == nil){
print("result")
}
})
}
}

Answer 8

谢谢@Lyndsey Scott。对于 Kingfisher，请将启用请求 http 添加到 .plist 文件。

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
    <key>NSExceptionDomains</key>
    <dict>
        <key>http://graph.facebook.com</key>
        <dict>
            <key>NSExceptionAllowsInsecureHTTPLoads</key>
            <true/>
            <key>NSIncludesSubdomains</key>
            <true/>
        </dict>
    </dict>
</dict>

然后将您用户的图片配置文件设置为 ImageView。

let facebookId = "xxxxxxx"
let facebookProfile: String = "http://graph.facebook.com/\(facebookId)/picture?type=large"
let url: URL = URL(string: facebookProfile)!
myImageView.kf.setImage(with: url)

Answer 9

Swift 4 方法:-

private func fetchUserData() {
    let graphRequest = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"id, email, name, picture.width(480).height(480)"])
    graphRequest?.start(completionHandler: { (connection, result, error) in
        if error != nil {
            print("Error",error!.localizedDescription)
        }
        else{
            print(result!)
            let field = result! as? [String:Any]
            self.userNameLabel.text = field!["name"] as? String
            if let imageURL = ((field!["picture"] as? [String: Any])?["data"] as? [String: Any])?["url"] as? String {
                print(imageURL)
                let url = URL(string: imageURL)
                let data = NSData(contentsOf: url!)
                let image = UIImage(data: data! as Data)
                self.profileImageView.image = image
            }
        }
    })
}

Answer 10

为Swift5

首先添加您需要的字段

let params = ["fields": "first_name, last_name, email, picture"]

创建图形请求

let graphRequest = GraphRequest(graphPath: "me", parameters: params, tokenString: token.tokenString, version: nil, httpMethod: .get)
graphRequest.start { (connection, result, error) in }

您将在 json

中得到结果

{
  "first_name": "",
  "last_name": "",
  "picture": {
    "data": {
      "height": 50,
      "is_silhouette": false,
      "url": "",
      "width": 50
    }
  },
  "id": ""
}

根据json响应，抓取结果

if let error = error {
            print("Facebook graph request error: \(error)")
        } else {
            print("Facebook graph request successful!")
            guard let json = result as? NSDictionary else { return }
            if let id = json["id"] as? String {
                print("\(id)")
            }
            if let email = json["email"] as? String {
                print("\(email)")
            }
            if let firstName = json["first_name"] as? String {
                print("\(firstName)")
            }
            if let lastName = json["last_name"] as? String {
                print("\(lastName)")
            }
            if let profilePicObj = json["picture"] as? [String:Any] {
                if let profilePicData = profilePicObj["data"] as? [String:Any] {
                    print("\(profilePicData)")
                    if let profilePic = profilePicData["url"] as? String {
                        print("\(profilePic)")
                    }
                }
            }
        }
    }

您还可以通过在参数中发送所需的宽度来获取自定义宽度的个人资料图片

let params = ["fields": "first_name, last_name, email, picture.width(480)"]

这就是整个代码的样子

if let token = AccessToken.current {
            let params = ["fields": "first_name, last_name, email, picture.width(480)"]
            let graphRequest = GraphRequest(graphPath: "me", parameters: params,
                                            tokenString: token.tokenString, version: nil, httpMethod: .get)
            graphRequest.start { (connection, result, error) in
                if let error = error {
                    print("Facebook graph request error: \(error)")
                } else {
                    print("Facebook graph request successful!")
                    guard let json = result as? NSDictionary else { return }
                    if let id = json["id"] as? String {
                        print("\(id)")
                    }
                    if let email = json["email"] as? String {
                        print("\(email)")
                    }
                    if let firstName = json["first_name"] as? String {
                        print("\(firstName)")
                    }
                    if let lastName = json["last_name"] as? String {
                        print("\(lastName)")
                    }
                    if let profilePicObj = json["picture"] as? [String:Any] {
                        if let profilePicData = profilePicObj["data"] as? [String:Any] {
                            print("\(profilePicData)")
                            if let profilePic = profilePicData["url"] as? String {
                                print("\(profilePic)")
                            }
                        }
                    }
                }
            }
        }

查看 Graph API Explorer 了解更多字段。

Facebook iOS SDK 和 swift：如何获取用户的个人资料图片

Facebook iOS SDK and swift: how get user's profile picture

ios

swift

facebook-graph-api

facebook-ios-sdk