webViewDidFinishLoad in WKWebView

Question

I have to migrate from UIWebView to WKWebView and I'm having some trouble with this. It looks like that "WKWebView" has no member 'request'. Is there a way to handle this situation using the WKWebView? I simply need to get the URL loaded and then if it contains ".pdf" just show a button.

func webViewDidFinishLoad(_ webView : WKWebView) {
    UIApplication.shared.isNetworkActivityIndicatorVisible = false

    if (webView.request?.url!.absoluteString)!.range(of: ".pdf") != nil {
        pdfBackButton.isHidden = false
    }
    else {
    pdfBackButton.isHidden = true}

}

Answer 1

Add "WebKit" framework to your class.

override func viewDidLoad() {
     super.viewDidLoad()
     let myWebView:WKWebView = WKWebView(frame: CGRect(x: 0.0, y: 0.0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))
     myWebView.navigationDelegate = self;
     let url = URL(string: "https://www.Apple.com")!
     myWebView.load(URLRequest(url: url))
     self.view.addSubview(myWebView)
}

then implement WKNavigationDelegate method

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    UIApplication.shared.isNetworkActivityIndicatorVisible = false
    let url = webView.url
    print(url as Any) // this will print url address as option field
    if url?.absoluteString.range(of: ".pdf") != nil {
         pdfBackButton.isHidden = false
         print("PDF contain")
    }
    else {
         pdfBackButton.isHidden = true
         print("No PDF Contain")        
    } 
}

Hope this will help you!