Mkpolyline Only Shown When Map Is Moved

I have a MKMapView with some pins on it. I connect the pins with a MKPolyline view. But the MKPolyline is only shown when I move the map (when the MapView is updated?). I want to s

Solution 1:

Make sure you set the mapView's delegate before adding the overlay. So, in your case

mapView.delegate = self;[self plotSnapPosition];

Solution 2:

Have you tried adding a [overlayView setNeedsDisplay] call when you finish drawing?