ios - 快速从 Parse 中检索用户信息

Question

我正在尝试从 Parse 获取用户信息(电子邮件地址)。我试过下面的代码，但它显示错误，说“Anyobject is not convertible to String”。我应该怎么做才能获得电子邮件地址？提前致谢。

  //Retrieve user info from parse 
    var query:PFQuery=PFQuery(className: "_User");

    query.whereKey("objectId", equalTo: PFUser.currentUser()!.objectId!)
    query.findObjectsInBackgroundWithBlock{
        (posts: [AnyObject]?, error: NSError?) -> Void in
        if !(error != nil) {
            let user = PFUser.currentUser()
            var email = user["email"] as! String
        }
    }

Answer 1

因为您已经有了一个 PFUser.currentUser，您可以直接获取该对象而无需像这样进行查询

PFUser.currentUser()!.fetchInBackgroundWithBlock({ (currentUser: PFObject?, error: NSError?) -> Void in

// Update your data

                    if let user = currentUser as? PFUser {

                        var email = user.email

                    }
                })