无法为Facebook Graph API用户的照片边缘获得单个大尺寸

问题描述

我在iOS应用程序中将facebook sdk用于登录和user_photos.

I am using the facebook sdk for login and user_photos purpose in a iOS Application.

登录已完成，并在权限中添加了user_photos readPermissions.

The login is done and in the permissions I added the user_photos readPermissions.

但是，当我尝试使用graphPath:me/具有fields参数-id,picture的照片来获取用户照片时，仅返回最小的图像大小.我尝试使用picture.type(large)或picture.width(640)，但是没有任何效果.

But when I am trying to fetch the user photos using the graphPath: me/photos with fields parameters- id,picture, only the smallest of the images size is returned. I have tried using picture.type(large) or picture.width(640) , but nothing works.

我尝试对fields使用images参数，它返回Photo节点的所有大小.

I tried using the images parameter for fields, it returns all the sizes for the Photo node.

我什至尝试将边缘<OBJECT_ID>/picture与fields参数picture一起使用，但是它给出了facebook sdk error(error code 6).

I even tried using the edge <OBJECT_ID>/picture with fields parameter picture, but it gives a facebook sdk error(error code 6).

如何仅通过单个照片链接将用户照片放大为大尺寸?

How to get the user photos with just a single photo link to a large size ?

我正在使用最新版本的SDK.

I am using the latest version of the SDK.

推荐答案

Swift-试试这个

@IBAction func facebookLoginButtonTapped(_ sender: UIButton) {
            let fbLoginManager: FBSDKLoginManager = FBSDKLoginManager()
            fbLoginManager.logIn(withReadPermissions: ["email", "pages_show_list"], from: self) { (result, error) in
                if (error == nil){
                    let fbLoginResult: FBSDKLoginManagerLoginResult = result!
                    if fbLoginResult.grantedPermissions != nil {
                        if(fbLoginResult.grantedPermissions.contains("email")){
                            self.facebookLogin()
                        }
                    }
                }
            }
        }
    }

---

    func facebookLogin() {
        if((FBSDKAccessToken.current()) != nil) {
            FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"id, name, first_name, last_name, picture.type(large), email "]).start(completionHandler: { (connection, result, error) in
                if result == nil {
                }
                else{
                    self.userResults = result as! [String : AnyObject]
                    self.email = (self.userResults["email"] as? String) ?? ""
                    if (self.email != "") {
                        let url = URL(string: "http://graph.facebook.com/\(YOURE FACEBOOK ID)/picture?type=large")!
                        let session = URLSession(configuration: .default)
                        let downloadPicTask = session.dataTask(with: url) { (data, response, error) in
                            // The download has finished.
                            if let e = error {
                                print("Error downloading cat picture: \(e)")
                            } else {
                                if let res = response as? HTTPURLResponse {
                                    print("Downloaded cat picture with response code \(res.statusCode)")
                                    if let imageData = data {
                                        let image: UIImage = UIImage(data: imageData)!
                                    } else {
                                        print("Couldn't get image: Image is nil")
                                    }
                                } else {
                                    print("Couldn't get response code for some reason")
                                }
                            }
                        }
                        downloadPicTask.resume()
                    }
                    else{
                        Utility.showAlert("Login Faild", message: error?.localizedDescription, viewController: self)
                    }
                }
            })
        }
    }

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