WebView Location prompt sample

WebViewLocationActivity.cs

using Android;
using Android.App;
using Android.Content;
using Android.Webkit;
using Android.OS;

[assembly: UsesPermission(Name = Manifest.Permission.AccessFineLocation)]
[assembly: UsesPermission(Name = Manifest.Permission.Internet)]

namespace WebViewLocation
{
    [Activity(Label = "WebView Location", MainLauncher = true, Icon = "@drawable/icon")]
    public class WebViewLocationActivity : Activity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            var webview = new WebView(this);
            webview.Settings.JavaScriptEnabled = true;
            webview.Settings.SetGeolocationEnabled(true);
            webview.SetWebViewClient(new MyWebViewClient());
            webview.SetWebChromeClient(new MyWebChromeClient(this));

            webview.LoadUrl("https://maps.google.com");

            SetContentView(webview);
        }
    }

    public class MyWebViewClient : WebViewClient
    {
        public override bool ShouldOverrideUrlLoading(WebView view, string url)
        {
            view.LoadUrl(url);
            return true;
        }
    }

    public class MyWebChromeClient : WebChromeClient
    {
        private readonly Context _context;

        public MyWebChromeClient(Context context)
        {
            _context = context;
        }

        public override void OnGeolocationPermissionsShowPrompt(string origin, GeolocationPermissions.ICallback callback)
        {
            const bool remember = false;
            var builder = new AlertDialog.Builder(_context);
            builder.SetTitle("Location")
                .SetMessage(string.Format("{0} would like to use your current location", origin))
                .SetPositiveButton("Allow", (sender, args) => callback.Invoke(origin, true, remember))
                .SetNegativeButton("Disallow", (sender, args) => callback.Invoke(origin, false, remember));
            var alert = builder.Create();
            alert.Show();
        }
    }
}

It doesn't work for me [u_u]

@josedavidpc310 too bad. This is a 4 year old sample. Things have changed since then.