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();
        }
    }
}

Hi,

First off all, thanks for the code.

I've been trying to put htis to work with no luck so far.
When I publish the app into my Android 6.0 phone everything goes well with the webview but the geolocation simply does not work.

Testing URL: https://www.google.pt/maps/
Error: E/cr_LocationProvider(28095): Caught security exception while registering for location updates from the system. The application does not have sufficient geolocation permissions.
Phones:
Sony Xperia E5
Sony Xperia E3
AndroidManifest:
uses-permission android:name="android.permission.INTERNET"
uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"
I can't seem to find any more info on this.

Could you help figure out what's wrong with it.

Thank you

Code works perfectly but when webview is refreshed, it prompt the user again. Can the permission allowed to be kept?

Make the remember constant true and it should stick.

It doesn't work for me [u_u]

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