如何检索用户邮件和名称？ （PFFacebookUtils.logInInBackgroundWithReadPermissions，swift 1.2）

Question

我已成功登录我的用户，使用以下代码和stackoverflow上的大量阅读：

@IBAction func FBlogin(sender: UIButton) {

    self.activity.startAnimating()

    let permissions = ["public_profile", "email"]

    PFFacebookUtils.logInInBackgroundWithReadPermissions(permissions) {
        (user: PFUser?, error: NSError?) -> Void in
        if let user = user {
            self.activity.stopAnimating()
            if user.isNew {
                print(user.email)
                print(user.username)
                print("User signed up and logged in through Facebook!")
            } else {
                print(user.email)
                print(user.username)
                print("User logged in through Facebook!")
            }
        } else {
            self.activity.stopAnimating()
        }
    }

}

1. 这会在parse.com中创建一个新用户但是没有填写电子邮件，用户名......？

问题：如何检索电子邮件和用户名详细信息？

在搜索和摆弄更多内容后，我添加了以下代码：

func getUserDataFromFacebookProfile(user: PFUser)
{

    var facebookid : String?
    var username  : String?
    var userEmail : String?
    var userGender : String?
    var userLocation : String?


    let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me", parameters: nil)
    graphRequest.startWithCompletionHandler({ (connection, result, error) -> Void in

        if ((error) != nil)
        {
            // Process error
            print("graphrequest error: \(error)")
        }
        else
        {
            //if this works, we can store user name und PFUser and mail in    PFuser....
            //not working yet
            /*

            id
            name
            first_name
            last_name
            link
            gender
            locale
            timezone
            updated_time
            verified


            */

            facebookid = result.valueForKey("id") as? String
            userEmail = result.valueForKey("email") as? String
            username = result.valueForKey("name") as? String
            let fname = result.valueForKey("first_name") as? String
            let lname = result.valueForKey("last_name") as? String
            let loc = result.valueForKey("locale") as? String
            let gend = result.valueForKey("gender") as? String


            //userGender = result.valueForKey("gender") as? String
            userLocation = result.valueForKey("location") as? String

            print("*****************************************************************************")
            print("")
            print("graphrequest result  \(facebookid), \(username), \(userEmail), \(gend), \(fname), \(lname)")
            print("")
            print("*****************************************************************************")


        }

        //persist in our DB for later
        let thisUser: PFUser = user

        print("updating current user")
        if let uName = username {
            thisUser.username = uName
        }

        if let uEmail = userEmail {
            thisUser.email = uEmail
        }

        thisUser.saveInBackground()
    })
}

奇怪的是我只能检索身份证，电子邮件和姓名？！

Answer 1

关于电子邮件：搜索＆＃34;声明字段＆＃34;在更改日志中：https://developers.facebook.com/docs/apps/changelog#v2_4

关于用户名：自图谱API的v2.0起，该字段不再可用：https://developers.facebook.com/docs/apps/changelog#v2_0

Answer 2

所以这对我有用。显然FB再次改变了一些事情。关键是将必填字段添加到参数列表中，如下所示：

let graphRequest : FBSDKGraphRequest = FBSDKGraphRequest(graphPath:  "me", parameters: ["fields": "email,first_name,last_name,gender,picture.width(480).height(480)"])