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Move up textfield when keyboard appears on UIViewController in Swift

Move up textfield when keyboard appears on UIViewController in Swift

import UIKit
import Foundation
import Alamofire

class ViewController: UIViewController, UIScrollViewDelegate, UITextFieldDelegate {
    @IBOutlet weak var scrollViewBottonConstraint: NSLayoutConstraint!
    @IBOutlet weak var emailTextField: UITextField!
    @IBOutlet weak var passwordTextfield: UITextField!
    @IBOutlet weak var scrollView: UIScrollView!
    override func viewDidLoad() {
        scrollView.contentSize = view.frame.size
        let tabGesture = UITapGestureRecognizer(target: self, action: #selector(didTapView(gesture:)))
    override func viewDidAppear(_ animated: Bool) {
    override func viewDidDisappear(_ animated: Bool) {
    @objc func didTapView(gesture: UITapGestureRecognizer){
    func addObservers(){
        let notificationCenter = NotificationCenter.default
        notificationCenter.addObserver(self, selector: #selector(keyboardWillShow), name: UIResponder.keyboardWillShowNotification, object: nil)
        notificationCenter.addObserver(self, selector: #selector(keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
    func removeObservers() {
    @objc func keyboardWillShow(notification: Notification){

        guard let userInfo = notification.userInfo, let frame = (userInfo[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue else {
        let conntentInset = UIEdgeInsets(top: 0, left: 0, bottom: frame.height, right: 0)
        scrollView.contentInset = conntentInset
    @objc func keyboardWillHide(notification: Notification){
        scrollView.contentInset =
    func textFieldShouldReturn(_ textField: UITextField) -> Bool
        return true
    override func didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.


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