CloudKit UserRecordID - 没有用户身份的回调

Question

我正在尝试获取CloudKit用户的名字和姓氏。

以下是代码：

container.fetchUserRecordID { (recordID, error) in
        guard error == nil else { return }
        guard let recordID = recordID else { return }

        self.container.discoverUserInfo(withUserRecordID: recordID) { (info, fetchError) in
            // use info.firstName and info.lastName however you need
            print(info?.displayContact?.givenName)
        }
    }

运行打印行时，我收到以下消息 ：[LogFacilityCK]获得了没有用户标识的用户发现进度回调：{     FetchInfo =“＆gt;”; }

调试时，info变量显示为nil。

有什么想法吗？

Answer 1

以下是我获得用户名称的方式：

CKContainer.default().requestApplicationPermission(.userDiscoverability) { (status, error) in
        CKContainer.default().fetchUserRecordID { (record, error) in
            CKContainer.default().discoverUserIdentity(withUserRecordID: record!, completionHandler: { (userID, error) in
                userName = (userID?.nameComponents?.givenName)! + " " + (userID?.nameComponents?.familyName)!
                print("CK User Name: " + userName)
            })
        }
    }