这是我的 iOS 应用程序使用 xcode 和 swift 的 ResetPassword 按钮:
//ResetPssword Button
@IBAction func ResetPassword(sender: AnyObject) {
if validateEmail(EmailTextField.text!) == false {
print("Enter a Valid Email Address")
let VaildMessage = "Enter an Email Address"
//Empty TextField Alert Message
self.disaplayErrorMessage(VaildMessage)
}
//Reset
else {
ref.resetPasswordForUser(EmailTextField.text) { (ErrorType) -> Void in
if ErrorType != nil {
let error = ErrorType
print("There was an error processing the request \(error.description)")
let errorMessage:String = "The Email You Entered is not Exist"
//Error Alert Message
self.disaplayErrorMessage(errorMessage)
} else {
print("Password Reset Sent Successfully")
let successMessage = "Email Message was Sent to You at \(self.EmailTextField.text)"
//Success Alert Message
self.disaplayErrorMessage(successMessage)
}
} //reset
} //Big Else
} //Button
//Display Alert Message With Confirmation
func disaplayErrorMessage(theMessage:String)
{
//Display alert message with confirmation.
let myAlert = UIAlertController(title: "Alert", message: theMessage, preferredStyle: UIAlertControllerStyle.Alert);
let OkAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default) {
action in
self.dismissViewControllerAnimated(true, completion: nil);
}
myAlert.addAction(OkAction);
self.presentViewController(myAlert, animated: true, completion: nil)
}
//Validate Email Function
func validateEmail(candidate: String) -> Bool {
let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,6}"
return NSPredicate(format: "SELF MATCHES %@", emailRegex).evaluateWithObject(candidate)
}
如果密码重置发送成功，将会出现一条警告，打印出电子邮件地址。但它会打印带有可选单词的电子邮件!
如何在没有可选单词的情况下打印它？
最佳答案
您必须解开可选文本字段。
例如使用if let:
if let text = self.EmailTextField.text {
let successMessage = "Email Message was Sent to You at \(text)"
//Success Alert Message
self.disaplayErrorMessage(successMessage)
}
关于ios - ResetPassword 中警报中的可选文本 - 使用 Swift 的 iOS 项目，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35944483/