private async void OnSearchButtonClicked(object sender, EventArgs e)
{
var searchText = SearchField.Text;
if (string.IsNullOrEmpty(searchText))
{
return;
}
var positions = await Geocoder.GetPositionsForAddressAsyncFunc(searchText);
var position = positions.FirstOrDefault();
((MapModalViewModel)BindingContext).SelectedLocation = position.ToLocation();
Pin.Position = position;
Map.MoveToRegion(MapSpan.FromCenterAndRadius(position, Distance.FromKilometers(1)));
}