How to draw a MKPolyline on a MapView?
ios, iphone, mkmapview
Solution
Done.
Was a very stupid thing, i didn't set the delegate for the MapView. Simply adding [map setDelegate:self]; did the trick.
Thank you anyway!.
Problem
I have an array of points to be drawn on a map, its already decoded: ``` - (void) drawRoute:(NSArray *) path { NSInteger numberOfSteps = path.count; CLLocationCoordinate2D coordinates[numberOfSteps]; for (NSInteger index = 0; index < numberOfSteps; index++) { CLLocation *location = [path objectAtIndex:index]; CLLocationCoordinate2D coordinate = location.coordinate; coordinates[index] = coordinate; } MKPolyline *polyLine = [MKPolyline polylineWithCoordinates:coordinates count:numberOfSteps]; [map addOverlay:polyLine]; } ``` where "map" is an instance of MKMapView, and path the array representing the already decoded set of points. I thought that with the line `[map addOverlay:polyLine];` it would be drawn. I've seen in some pages this method: ``` - (MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id <MKOverlay>)overlay { MKPolylineView *polylineView = [[MKPolylineView alloc] initWithPolyline:overlay]; polylineView.strokeColor = [UIColor redColor]; polylineView.lineWidth = 1.0; return polylineView; } ``` Is the polylineView what is actually drawn on map? I've tried also to pass the MKPolyline (from the method above) to the "<MKOverlay> overlay" argument of this last method, but throws an exception. I think I'm close, but I don't know what to do now. Please help! Thank you very much in advance.