private static void OnMapCenterChanged(BindableObject instance, object oldValue, object newValue)
{
MapView map = (MapView)instance;
map.MapCenter = (GeoLocation)newValue;
}
private static void OnLocationsChanged(BindableObject instance, object oldValue, object newValue)
{
MapView map = (MapView)instance;
map.Locations = (ObservableCollection <GeoLocation>)newValue;
}
