获取 facebook 用户数据

用户在你的应用程序登录 Facebook 后，现在是时候获取你在 FBButton.readPermissions 上请求的数据了。

迅速：

enum FacebookParametesField : String
{
    case FIELDS_KEY = "fields"
    case FIELDS_VALUE = "id, email, picture, first_name, last_name"
}

if FBSDKAccessToken.currentAccessToken() != nil
{
//  Getting user facebook data
FBSDKGraphRequest(graphPath: "me", 
                 parameters: [FacebookParametesField.FIELDS_KEY.rawValue : FacebookParametesField.FIELDS_VALUE.rawValue])
.startWithCompletionHandler({ (graphConnection : FBSDKGraphRequestConnection!, result : AnyObject!, error : NSError!) -> Void in
    
        if error == nil
        {
            print("Facebook Graph phaze")

            let email = result["email"]
            let facebookToken = FBSDKAccessToken.currentAccessToken().tokenString
            let userFacebookId = result["id"]
            let firstName = result["first_name"]
            let lastName = result["last_name"]
            
            if let result = result as? Dictionary<String, AnyObject>
            {
                if let picture = result["picture"] as? Dictionary<String,AnyObject>
                {
                    if let data = picture["data"] as? Dictionary <String,AnyObject>
                    {
                        if let url = data["url"] as? String
                        {
                            //  Profile picture URL
                            let profilePictureURL = url
                        }
                    }
                }
            }
        }
    })
}