WebView Navigating event never fired on IOS

Entretoize commented 2 years ago

Description

I created a hybrid renderer like that:

[assembly: ExportRenderer(typeof(CustomWebView), typeof(HybridWebViewRenderer))]
namespace ClotureSiadForms.iOS.Renderer
{
    public class HybridWebViewRenderer : WkWebViewRenderer, IWKScriptMessageHandler
    {
...

With that CustomWebView class:

    public class CustomWebView : WebView
    {
        public string js="";
        public CustomWebView()
        {
            base.Navigating+= WebViewNavigating; //also tried from xaml
        }
        public void WebViewNavigating(object sender, WebNavigatingEventArgs args)
        {
            if (args.Url.StartsWith("tel:"))
            {
                var tel = args.Url.Split(':')[1];
                args.Cancel = true;

                Xamarin.Essentials.PhoneDialer.Open(tel);
            }
        }
    }

Steps to Reproduce

Create a hybrid renderer for IOS
Add a Navigating event callback
Navigate to any webpage

Expected Behavior

The WebViewNavigating method should be called on each navigation change

Actual Behavior

WebViewNavigating is never called on IOS

Environment

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