Question

我目前正在开发一个带有登录页面的应用程序，该页面带有登录按钮和主菜单按钮。我已经创建了所有内容，并且暂时运行良好。我正在使用Firebase作为后端数据库。

我想创建一个“忘记密码”按钮，该按钮我已经做过并且似乎可以正常使用，但是唯一的问题是它在发送电子邮件时没有给我警报，它只是发送了电子邮件，但我得到了当我输入不在用户身份验证中的电子邮件时会发出警报。以下是我的“忘记密码”按钮的代码：

    @IBAction func frgtpassTapped(_ sender: Any) {
    Auth.auth().sendPasswordReset(withEmail: emailTextField.text!) { error in
        if self.emailTextField.text?.isEmpty==true{
            let resetFailedAlert = UIAlertController(title: "Reset Failed", message: "Error: \(String(describing: error?.localizedDescription))", preferredStyle: .alert)
            resetFailedAlert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(resetFailedAlert, animated: true, completion: nil)
        }
        if error != nil && self.emailTextField.text?.isEmpty==false{
            let resetEmailAlertSent = UIAlertController(title: "Reset Email Sent", message: "Reset email has been sent to your login email, please follow the instructions in the mail to reset your password", preferredStyle: .alert)
            resetEmailAlertSent.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
            self.present(resetEmailAlertSent, animated: true, completion: nil)
        }
    }
}

我接受是否有人对这篇文章投反对票，但是如果您反对，请在原因下方评论。任何帮助将非常感激！

Answer 1

Please this code

 Auth.auth().sendPasswordReset(withEmail: emailTextField.text!) { error in
            DispatchQueue.main.async {
                if self.emailTextField.text?.isEmpty==true || error != nil {
                    let resetFailedAlert = UIAlertController(title: "Reset Failed", message: "Error: \(String(describing: error?.localizedDescription))", preferredStyle: .alert)
                    resetFailedAlert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
                    self.present(resetFailedAlert, animated: true, completion: nil)
                }
                if error == nil && self.emailTextField.text?.isEmpty==false{
                    let resetEmailAlertSent = UIAlertController(title: "Reset Email Sent", message: "Reset email has been sent to your login email, please follow the instructions in the mail to reset your password", preferredStyle: .alert)
                    resetEmailAlertSent.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
                    self.present(resetEmailAlertSent, animated: true, completion: nil)
                }
            }
        }

Answer 2

从代码中很明显，您正在将unWrapped值传递给闭包，因此textField中必须包含一些值。

您的代码中的这一行：如果self.emailTextField.text？.isEmpty == true {

将永远不会输入内部条件。它应该更新为：

@IBAction func frgtpassTapped(_ sender: Any) {
    //BEFORE SENDING DATA FOR AUTHENTICATION, CHECK FOR THE isEmpty CONDITIONS HERE
    Auth.auth().sendPasswordReset(withEmail: emailTextField.text!) { error in
        DispatchQueue.main.async {
            if error != nil {
                // YOUR ERROR CODE
            } else {
                //YOUR SUCCESS MESSAGE
            }
        }
    }
}

Firebase重设密码IOS App Xcode

2 个答案: