注册屏幕不会成功切换到新的视图控制器。

Posted 2023-02-23

【中文标题】注册屏幕不会成功切换到新的视图控制器。

【英文标题】：Register screen won't successfully segue to a new view controller.

【发布时间】：2018-06-07 20:53:45

【问题描述】：

下午好。我正在尝试在我的应用程序中实现注册功能。当我成功注册时，它将转到主视图控制器，但是，它只会重定向回注册视图控制器。有人可以让我知道我做错了什么吗？

Auth.auth().createUser(withEmail: email, password: password) (User, error) in

        if error != nil 
            print("error")
            return
        else
            let MainView = UINavigationController(rootViewController: mainViewController())
            self.present(MainView, animated: true, completion: nil)
        
        self.defaults.set(false, forKey: "user is logged in")

        let userID = Auth.auth().currentUser!.uid

        let ref = Database.database().reference(fromURL: "https://odd-jobs-llc-f854a.firebaseio.com/")
        let usersReference = ref.child("users").child(userID)
        let values = ["first name": firstname, "last name": lastname, "phone number": phonenumber,
        "email": email]
        usersReference.updateChildValues(values, withCompletionBlock:  (err, ref) in

            if err != nil 
                print("err")
                return
            

            self.dismiss(animated: true, completion: nil)
        )


    

【参考方案1】：

这将呈现 VC

 let MainView = UINavigationController(rootViewController: mainViewController())
 self.present(MainView, animated: true, completion: nil)

还有这个

 self.dismiss(animated: true, completion: nil)

将忽略它，您可能是这样的意思

Auth.auth().createUser(withEmail: email, password: password)  (User, error) in

        if error != nil 
            print("error")
            return
         

        self.defaults.set(false, forKey: "user is logged in")

        let userID = Auth.auth().currentUser!.uid

        let ref = Database.database().reference(fromURL: "https://odd-jobs-llc-f854a.firebaseio.com/")
        let usersReference = ref.child("users").child(userID)
        let values = ["first name": firstname, "last name": lastname, "phone number": phonenumber,
        "email": email]
        usersReference.updateChildValues(values, withCompletionBlock:  (err, ref) in

            if err != nil 
                print("err")
                return
            

             let MainView = UINavigationController(rootViewController: mainViewController())
             self.present(MainView, animated: true, completion: nil)


        )