swift - with - uialertcontroller xcode

Swift: inserta el cuadro de alerta con entrada de texto(y guarda la entrada de texto)

Question

En uno de mis viewController , quiero que aparezca un alert box que indique al user que escriba esta información. NSUserDefaults , quiero que el usuario almacene esta entrada utilizando NSUserDefaults . ¿Cómo puedo conseguir esto?

¡Gracias de antemano!

Answer 1

Mira esto:

let alertController = UIAlertController(title: "Email?", message: "Please input your email:", preferredStyle: .alert)
let confirmAction = UIAlertAction(title: "Confirm", style: .default) { (_) in
guard let textFields = alertController.textFields,
textFields.count > 0 else {
// Could not find textfield
return
}
let field = textFields[0]
// store your data
UserDefaults.standard.set(field.text, forKey: "userEmail")
UserDefaults.standard.synchronize()
}
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { (_) in }
alertController.addTextField { (textField) in
textField.placeholder = "Email"
}
alertController.addAction(confirmAction)
alertController.addAction(cancelAction)
self.present(alertController, animated: true, completion: nil)

Answer 2

En veloz 3

let alertController = UIAlertController(title: "SecureStyle", message: "SecureStyle AlertView.", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addTextFieldWithConfigurationHandler { (textField : UITextField) -> Void in
textField.secureTextEntry = true
textField.placeholder = "Password"
}
let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { (result : UIAlertAction) -> Void in
print("Cancel")
}
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default) { (result : UIAlertAction) -> Void in
print(alertController.textFields?.first?.text)
}
alertController.addAction(cancelAction)
alertController.addAction(okAction)
self.presentViewController(alertController, animated: true, completion: nil)

Answer 3

SWIFT 3

func presentAlert() {
let alertController = UIAlertController(title: "Email?", message: "Please input your email:", preferredStyle: .alert)
let confirmAction = UIAlertAction(title: "Confirm", style: .default) { (_) in
if let emailTextField = alertController.textFields?[0] {
// do your stuff with emailTextField
}
}
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { (_) in }
alertController.addTextField { (textField) in
textField.placeholder = "Email"
}
alertController.addAction(confirmAction)
alertController.addAction(cancelAction)
present(alertController, animated: true, completion: nil)
}