将 facebook 集成的结果设置为标签

Question

我在 Swift 3.0 中从事一个项目，我有一个使用 Facebook 的身份验证注册程序。所以基本上我已经完成了 FB 集成部分，一旦登录到一个帐户，结果我得到了用户的电子邮件地址、姓名、Id 和个人资料图片的 url，如下所示，因为我已经请求了他们（这是我在控制台中得到的）。我收到的格式如下。

Optional({
    email = "xxxxx@yahoo.com";
    id = xxxxxxxxxx;
    name = "xxxxxx xxxx";
    picture =     {
        data =         {
            "is_silhouette" = 0;
            url = "https://scontent.xx.fbcdn.net/v/t1-1/c2.0.50.50/p50x50/10441341_10201209786847369_5426097469926927988_n.jpg?oh=1b4d8709be17338bc7e877d411b96eee&oe=58CE5B13";
        };
    };
})

我的要求是将这些电子邮件、姓名、ID 字段分配给标签并打印出来。

我的相关视图控制器的代码如下。我应该添加什么？？

import UIKit
import FBSDKLoginKit

class ViewController: UIViewController,FBSDKLoginButtonDelegate{

    @IBOutlet weak var displayLabel: UILabel!
    @IBOutlet weak var loginButton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()
        let loginButton = FBSDKLoginButton()
        view.addSubview(loginButton)
        //frame's are obselete, please use constraints instead because its 2016 after all
        loginButton.frame = CGRect(x: 16, y: 50, width: view.frame.width - 32, height: 50)

       loginButton.delegate = self
        loginButton.readPermissions = ["email", "public_profile"]

    }
    func loginButtonDidLogOut(_ loginButton: FBSDKLoginButton!) {
        print("Did log out of facebook")
    }

  @IBAction func loginButtonPressed(_ sender: AnyObject) {
        FBSDKLoginManager().logIn(withReadPermissions: ["email"], from: self) { (result, err) in
            if err != nil {
                print("Custom FB Login failed:", err)
                return
            }
            print("FB login Sucess")
            print(result?.token.tokenString)



            self.showEmailAddress()
        }
    }

    func showEmailAddress() {
        FBSDKGraphRequest(graphPath: "/me", parameters: ["fields": "id, name, email,picture"]).start { (connection, result, err) in

            if err != nil {
                print("Failed to start graph request:", err)
                return
            }
            print(result)

//            self.displayLabel.text = result["email"]as? NSMutableArray
        }
    }

}

Answer 1

首先将结果对象的类型指定为 [String: Any]，然后从中获取值。

if let dic = result as? [String: Any] {
    self.displayLabel.text = dic["email"] as? String
    self.displayNameLabel.text = dic["name"] as? String
    self.displayIdLabel.text = dic["id"] as? String
}

将 facebook 集成的结果设置为标签

set the results of facebook integration to labels

dictionary

ios

swift

facebook-sdk-4.x

swift3