display route on iOS 7 maps: addOverlay has no effect

Question

i want display a point to point route inside my mapView, i use this code for create the route:

- (IBAction)backToYourCar {
    MKPlacemark *sourcePlacemark =         


        

Answer 1

after a day of research i have solved with this 3 steps:

1. Set the delegate (self.mapView.delegate = self).
2. import the MKMapViewDelegate
3. Implemente the new iOS7 MapView delegate method: - (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay(id<MKOverlay>)overlay:

this is my implementation:

- (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay
{
    if ([overlay isKindOfClass:[MKPolyline class]]) {
        MKPolyline *route = overlay;
        MKPolylineRenderer *routeRenderer = [[MKPolylineRenderer alloc] initWithPolyline:route];
        routeRenderer.strokeColor = [UIColor blueColor];
        return routeRenderer;
    }
    else return nil;
}

this method is automatically called by the delegate when you add the polyline on the map.