Using new async Google Maps in Xamarin Android

gistfile1.txt

//_mapFragment.Map is now obsolete with latest Google Play services.. new approach is needed...
        private void SetUpMap()
        {
            _mapFragment = FragmentManager.FindFragmentByTag("map") as MapFragment;
            if (_mapFragment == null)
            {
                GoogleMapOptions mapOptions = new GoogleMapOptions()
                    .InvokeMapType(GoogleMap.MapTypeHybrid)
                    .InvokeZoomControlsEnabled(true)
                    .InvokeCompassEnabled(true);

                FragmentTransaction fragTx = FragmentManager.BeginTransaction();
                _mapFragment = MapFragment.NewInstance(mapOptions);
                fragTx.Add(Resource.Id.map, _mapFragment, "map");
                fragTx.Commit();

                var mapReadyCallback = new MyOnMapReady();
                
                mapReadyCallback.MapReady += (sender, args) =>
                {
                    _gettingMap = false;
                    _map = ((MyOnMapReady)sender).Map;//receive the Map object when completed

                    MoveCamera();//do all the usual stuff after
                };

                _gettingMap = true;
       
                _mapFragment.GetMapAsync(mapReadyCallback);
            }
        }
        
    //class that implements IOnMapReadyCallback
        
    public class MyOnMapReady : Java.Lang.Object, IOnMapReadyCallback
    {
        public GoogleMap Map { get; private set; }

        public event EventHandler MapReady;

        public void OnMapReady(GoogleMap googleMap)
        {
            Map = googleMap;
            var handler = MapReady;
            if (handler != null)
                handler(this, EventArgs.Empty);//send the Map object back when completed
        }
    }