protected override void DrawRouteInMap(IEnumerable <Geoposition> positions)
{
var nativeCoordinates = positions.Select(p => CoordinateConverter.ConvertToNative(p));
_currentUserRoute = MKPolyline.FromCoordinates(nativeCoordinates.ToArray());
_nativeMap.AddOverlay(_currentUserRoute);
}
public override async Task <IEnumerable <Geoposition> > CalculateRoute(Geoposition from, Geoposition to)
{
IEnumerable <Geoposition> result = Enumerable.Empty <Geoposition>();
var nativeFrom = CoordinateConverter.ConvertToNative(from);
var nativeTo = CoordinateConverter.ConvertToNative(to);
var userPlaceMark = new MKPlacemark(nativeFrom, new Foundation.NSDictionary());
var incidencePlaceMark = new MKPlacemark(nativeTo, new Foundation.NSDictionary());
var sourceItem = new MKMapItem(userPlaceMark);
var destItem = new MKMapItem(incidencePlaceMark);
var request = new MKDirectionsRequest
{
Source = sourceItem,
Destination = destItem,
TransportType = MKDirectionsTransportType.Automobile
};
var directions = new MKDirections(request);
MKPolyline polyRoute = null;
directions.CalculateDirections((response, error) =>
{
if (error != null)
{
System.Diagnostics.Debug.WriteLine(error.LocalizedDescription);
}
else
{
if (response.Routes.Any())
{
var firstRoute = response.Routes.First();
polyRoute = firstRoute.Polyline;
}
}
});
do
{
await Task.Delay(100);
}while (directions.Calculating);
if (polyRoute != null)
{
result = polyRoute.Points.Select(s =>
{
CLLocationCoordinate2D coordinate = MKMapPoint.ToCoordinate(s);
return(CoordinateConverter.ConvertToAbstraction(coordinate));
});
}
return(result);
}