mapinfo_adapter.cs

internal class MapInfoWindowAdapter : Java.Lang.Object, HuaweiMap.IInfoWindowAdapter
{
    private MainActivity activity;
    private GeofenceModel selectedCoordinates;
    private View addressLayout;

    public MapInfoWindowAdapter(MainActivity currentActivity)
    {
        activity = currentActivity;
    }
    public View GetInfoContents(Marker marker)
    {
        return null;
    }

    public View GetInfoWindow(Marker marker)
    {
        if (marker == null)
            return null;

        //update everytime, drawcircle need it
        selectedCoordinates = new GeofenceModel { LatLng = new LatLng(marker.Position.Latitude, marker.Position.Longitude) };
        View mapInfoView = activity.LayoutInflater.Inflate(Resource.Layout.map_info_view, null);

        var radiusBar = activity.FindViewById<SeekBar>(Resource.Id.radiusBar);
        if (radiusBar.Visibility == Android.Views.ViewStates.Invisible)
        {
            radiusBar.Visibility = Android.Views.ViewStates.Visible;
            radiusBar.SetProgress(30, true);
        }

        activity.FindViewById<SeekBar>(Resource.Id.radiusBar)?.SetProgress(30, true);
        activity.DrawCircleOnMap(selectedCoordinates);
        Button button = mapInfoView.FindViewById<Button>(Resource.Id.btnInfoWindow);
        button.Click += btnInfoWindow_ClickAsync;

        return mapInfoView;
    }
}