public override void ViewDidLoad()
{
base.ViewDidLoad();
MyMap.WeakDelegate = this;
ButtonLoad.Hidden = true;
ButtonSave.Hidden = true;
viewModel = new CoffeesViewModel();
viewModel.PropertyChanged += ViewModel_PropertyChanged;
viewModel.Places.CollectionChanged += Places_CollectionChanged;
ButtonSearch.TouchUpInside += ButtonSearch_TouchUpInside;
ButtonLoad.TouchUpInside += ButtonLoad_TouchUpInside;
ButtonSave.TouchUpInside += ButtonSave_TouchUpInside;
var coords = new CLLocationCoordinate2D(App.StartLat, App.StartLong);
var span = new MKCoordinateSpan(DistanceUtils.MilesToLatitudeDegrees(10),
DistanceUtils.MilesToLongitudeDegrees(10, coords.Latitude));
MyMap.Region = new MKCoordinateRegion(coords, span);
}