使用 PFFacebookUtils 和 Swift 和 iOS 9 获取 Facebook 帐户详细信息

Question

我正在使用 Facebook 实现社交登录。 我使用以下代码记录用户并“检索”与他的帐户相关的信息（我希望），

PFFacebookUtils.logInInBackgroundWithReadPermissions(["public_profile", "email", "user_friends"]) {
  (user: PFUser?, error: NSError?) -> Void in
  if let user = user {
    if user.isNew {
      print("User signed up and logged in through Facebook!")
    } else {
      print("User logged in through Facebook!")
    }
  } 
  print(user)
  else {
    print("Uh oh. The user cancelled the Facebook login.")
  }
}

但控制台输出（和要解析的浏览数据）仅显示一个 ID，没有与此 Facebook 帐户相关联的信息。

我读到要获取用户详细信息，我必须在登录请求后发送 FBSDKGraphRequest。 如果是这样，beetwin 在 Parse 实现中使用登录而不是链接有什么区别（以及优势是什么）？

有没有办法在登录操作后自动导入与“权限”Facebook 帐户相关的信息？

提前谢谢你， 米歇尔

Answer 1

只需根据您的需要编辑读取权限，我没有使用 PFF，但 FBSDK 为我完成了工作，希望它对您有用

import UIKit
import FBSDKCoreKit
import FBSDKLoginKit


class ProfileViewController: UIViewController, FBSDKLoginButtonDelegate {

    @IBOutlet weak var nameLabel: UILabel!
    @IBOutlet weak var imageView: UIImageView!

    @IBOutlet weak var nextButton: UIButton!
    @IBOutlet weak var fbLoginButton: FBSDKLoginButton!


    override func viewDidLoad() {
        super.viewDidLoad()

        self.fbLoginButton.delegate = self
        self.fbLoginButton.readPermissions = ["public_profile"]
        self.fbLoginButton.publishPermissions = ["publish_actions"]
        NSNotificationCenter.defaultCenter().addObserver(
            self,
            selector: "fbProfileChanged:",
            name: FBSDKProfileDidChangeNotification,
            object: nil)
        FBSDKProfile.enableUpdatesOnAccessTokenChange(true)

        // If we have a current Facebook access token, force the profile change handler
        if ((FBSDKAccessToken.currentAccessToken()) != nil)
        {
            self.fbProfileChanged(self)
        } 
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    override func prefersStatusBarHidden() -> Bool {
        return true
    }



    //facebooks functions
    func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {
        if (error != nil)
        {
            print( "\(error.localizedDescription)" )
        }
        else if (result.isCancelled)
        {
            // Logged out?
            print( "Login Cancelled")
        }
        else
        {
            // Logged in?
            print( "Logged in, segue now")
            self.performSegueWithIdentifier("showHome", sender: self)
        }
    }



    func loginButtonDidLogOut(loginButton: FBSDKLoginButton!) {

    }


    //see bitfountain
    func fbProfileChanged(sender: AnyObject!) {

        let fbProfile = FBSDKProfile.currentProfile()
        if (fbProfile != nil)
        {
            // Fetch & format the profile picture
            let strProfilePicURL = fbProfile.imagePathForPictureMode(FBSDKProfilePictureMode.Square, size: imageView.frame.size)
            let url = NSURL(string: strProfilePicURL, relativeToURL: NSURL(string: "http://graph.facebook.com/"))
            let imageData = NSData(contentsOfURL: url!)
            let image = UIImage(data: imageData!)

            self.nameLabel.text = fbProfile.name
            self.imageView.image = image

            self.nameLabel.hidden = false
            self.imageView.hidden = false
            self.nextButton.hidden = false
        }
        else
        {
            self.nameLabel.text = ""
            self.imageView.image = UIImage(named: "")

            self.nameLabel.hidden = true
            self.imageView.hidden = true
        }
    }



    @IBAction func nextButtonPressed(sender: UIButton) {
    self.performSegueWithIdentifier("showHome", sender: self)
    }


}