WKWebview implementation in iOS swift

Problem:

I want to create a webview that can contain close button as well as webview to load the content. 

Solution:

import UIKit

import RxSwift

import RxCocoa

import WebKit

class MyVC: UIViewController, WKUIDelegate, WKNavigationDelegate  {

    

    @IBOutlet weak var closeBtn: UIButton!

    

    @IBOutlet weak var previewWeb: WKWebView!

    var url:URL?

    var disposebag = DisposeBag()

    override func viewDidLoad() {

        previewWeb.uiDelegate = self

        previewWeb.navigationDelegate = self

        self.closeBtn.tintColor = .white

        self.closeBtn.rx.tap.asDriver()

            .drive(onNext: { [weak self] in

                self?.dismiss(animated: true)

            }).disposed(by: self.disposebag)

        if let myUrl = url {

            if #available(iOS 16.0, *) {

                self.previewWeb.load(URLRequest(url:myUrl))

            } else {

                // Fallback on earlier versions

                self.previewWeb.loadFileURL(myUrl, allowingReadAccessTo: myUrl)

            }

        }

    }