Changing the pin image on MKMapView using Xcode 7 Swift2

Question

I have added the following code and not able to see any pin changes with new image and no error is getting displayed. map.delegate = self is done. do we need to add any code to make it work? any help?

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    let userLocation:CLLocation = locations[0] as CLLocation
    let span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)
    let region:MKCoordinateRegion = MKCoordinateRegionMake(userLocation.coordinate, span)


    routeMapView.setRegion(region, animated: true)

    currentLocationAnnotation.coordinate = userLocation.coordinate
    mapView(routeMapView, viewForAnnotation: currentLocationAnnotation)!.annotation = currentLocationAnnotation
    routeMapView.addAnnotation(currentLocationAnnotation)
    //print("getting current location..")
    getCurrentLocationAddress(userLocation)

    userCurrentLocation = userLocation
    userLocationSpan = span
    counter++

}


func mapView(mapView: MKMapView,
    viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {

        if annotation is MKUserLocation {
            //return nil so map view draws "blue dot" for standard user location
            return nil
        }

        let reuseId = "pin"
        var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
        if pinView == nil {
            pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
            pinView!.canShowCallout = true
            pinView!.animatesDrop = true
            pinView!.image = UIImage(named:"first")!
            print(pinView!.image!)
            routeMapView.delegate = self
        }
        else {
            pinView!.annotation = annotation
        }

        return pinView
}

rshankar · Accepted Answer · 2015-07-20 02:53:22Z

1

I am not sure whether you have already set the delegate for your mapView in viewDidLoad method. If not please do it. Because setting it inside viewForAnnotation will never call this delegate method. Move routeMapView.delegate = self from viewForAnnotation to viewDidLoad method.

answered Jul 20, 2015 at 2:53

rshankar

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