Implement a feature in an iOS app using Swift that allows users to grab a URL string by clicking a button within a WKWebview with a JS file

I am currently dealing with a situation where I need to extract a specific URL string that is being displayed in a WKWebview. This URL string appears in a new window within the Webview when a button is clicked, using the window.open function. Here is the code snippet responsible for opening the new window with the URL:

var data = cmp_pv.consentString.getConsentString();
            console.log("Consent writeCookie -----> " + data);
            var fnct = (cmp_pv.conf.hasGlobalScope) ? '_writeGlobalCookie' : '_writeCookie';
            this[fnct](this.vendorCookieName, data, 33696000, '/', cmp_pv.conf.cookieDomain);
            window.open('consent://' + data);

My goal is to retrieve the exact string that appears at the end of the URL after clicking the button in the WKWebview.

javascriptiosswiftuiwebviewwkwebview

Answer №1

When the button is clicked, this specific function will be triggered. You can use it to identify the redirect URL:

func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
    decisionHandler(.allow)
      guard let urlString = navigationAction.request.url?.absoluteString.lowercased() else {
          return
      }

      if urlString.contains("anything you desire") {
           // perform the necessary action here
      } 
 }

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