ログインボタンが有効にならないのと、ログイン画面でのキーボードが出た際の処理が上手く行きません。教えてください！！

Question

ログインボタンが有効にならないのと、ログイン画面でのキーボードが出た際の処理が上手く行きません。教えてください！！```xcode

import UIKit

class LogInViewController: UIViewController{

@IBOutlet weak var EmailTextField: UITextField!

@IBOutlet weak var PasswordTextField: UITextField!

@IBOutlet weak var LogInTextField: UIButton!

@IBOutlet weak var WarmingButton: UILabel!

@IBOutlet weak var ForgetPassward: UIButton!

@IBOutlet weak var NotYetGottonLabel: UILabel!

@IBOutlet weak var NotYetGottonButton: UIButton!

override func viewDidLoad() {
    super.viewDidLoad()
    
    LogInTextField.isEnabled = false
    WarmingButton.textColor = UIColor.red
    EmailTextField.delegate = self
    PasswordTextField.delegate = self
    

NotificationCenter.default.addObserver(self, selector: #selector(showKeyboard), name: UIResponder.keyboardWillShowNotification, object: nil)
    
NotificationCenter.default.addObserver(self, selector: #selector(hideKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
}

@objc func showKeyboard(notification: Notification){
    
    let keyboardFrame = (notification.userInfo![UIResponder.keyboardFrameEndUserInfoKey] as AnyObject).cgRectValue
    
    guard let keyboardMinY = keyboardFrame?.minY else {return}
    let LogInTextFieldMaxY = LogInTextField.frame.maxY
    let distance = LogInTextFieldMaxY - keyboardMinY + 20
    
    let transform = CGAffineTransform(translationX: 0, y: -distance)
    
    UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: [], animations: {
        self.view.transform = transform
    })

}
@objc func hideKeyboard(){
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: [], animations: {
self.view.transform = .identity
})

}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    self.view.endEditing(true)
}

}
extension LogInViewController: UITextFieldDelegate{

func UITextFieldDelegate(_ textField: UITextField) {
    
    
    let EmailIsEmpty = EmailTextField.text?.isEmpty ?? true
    let PasswordIsEmpty = PasswordTextField.text?.isEmpty  ?? true
    
    if EmailIsEmpty || PasswordIsEmpty {
        
        LogInTextField.isEnabled = false
        WarmingButton.textColor = UIColor.red
    }else{
        LogInTextField.isEnabled = true
        WarmingButton.textColor = UIColor.white
        
    }
    
    print("textField.text: ", textField.text)
    
    
    
}

}