Repeated dialog box for permission access in Xamarin project - only in ios

Question

I have a Xamarin Prism Forms app that contains web page which should get the users current location. The app already has the required "app" permissions for Android. But in ios when I call my external web page it repeatedly shows me the popup with the message :"website... Would Like To Use Your Current Location. Don't Allow / OK" each time they visit the web page from inside my Xamarin app. I am using WkWebViewRenderer for webview.I have tried all the possible answers I got and still the problem persists.

Can anybody help me on this??

Answer 1

I found out the solution in How to prevent WKWebView to repeatedly ask for permission to access location?

The steps I followed to solve the issue are:

• Add the following code inside class definition:

  const string JavaScriptFunction = "navigator.geolocation.getCurrentPosition = function(success, error, options) {window.webkit.messageHandlers.locationHandler.postMessage('getCurrentPosition');};";
  

• Add the following inside HybridWebViewRenderer constructor:

  var script = new WKUserScript(new NSString(JavaScriptFunction), 
               WKUserScriptInjectionTime.AtDocumentStart, true);
  userController.AddUserScript(script);
  userController.AddScriptMessageHandler(this, "locationHandler");
  

• Add the following in DidReceiveScriptMessage function:

  if (message.Name == "locationHandler")
  {
    var messageBody = message.Body.ToString();
    if (messageBody == "getCurrentPosition")
    {
      CLLocationManager manager=new CLLocationManager();
      manager.RequestAlwaysAuthorization();
      manager.StartUpdatingLocation();
      ((HybridWebView)Element).EvaluateJavaScriptAsync("getLocation(\" 
      (manager.location?.coordinate.latitude ?? 0) ,\" 
      (manager.location?.coordinate.longitude ?? 0))");
    }
  }