Move view with keyboard. Swift 3/4 version.

KeyboardMove.swift

override func viewDidLoad() {
  NotificationCenter.default.addObserver(self, selector: #selector(LoginViewController.keyboardWillShow), 
                                                   name: NSNotification.Name.UIKeyboardWillShow, 
                                                 object: nil)
  NotificationCenter.default.addObserver(self, selector: #selector(LoginViewController.keyboardWillHide), 
                                                   name: NSNotification.Name.UIKeyboardWillHide, 
                                                 object: nil)
}

func keyboardWillShow(notification: NSNotification) {
  if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
      self.view.frame.origin.y -= keyboardSize.height// 92 or whatever you want
  }
}
    
func keyboardWillHide(notification: NSNotification) {
  if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
    if self.view.frame.origin.y != 0 {
        self.view.frame.origin.y += keyboardSize.height// 92 or whatever you want
    }
  }
}