Mark a place on the map with an image

Download the Tower of Pisa asset catalog and add it to your project.

This example uses MGLAnnotationImage, which is intended to be used with small, static images. For interactive annotations with larger images or animation, use MGLAnnotationView (example).

To learn about more ways to add points to a map, check out the Markers and annotations guide.

import Mapbox
class ViewController: UIViewController, MGLMapViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
let mapView = MGLMapView(frame: view.bounds, styleURL: MGLStyle.lightStyleURL)
mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
mapView.tintColor = .darkGray
// Set the map's bounds to Pisa, Italy.
let bounds = MGLCoordinateBounds(
sw: CLLocationCoordinate2D(latitude: 43.7115, longitude: 10.3725),
ne: CLLocationCoordinate2D(latitude: 43.7318, longitude: 10.4222))
mapView.setVisibleCoordinateBounds(bounds, animated: false)
view.addSubview(mapView)
// Set the map view‘s delegate property.
mapView.delegate = self
// Initialize and add the point annotation.
let pisa = MGLPointAnnotation()
pisa.coordinate = CLLocationCoordinate2D(latitude: 43.72305, longitude: 10.396633)
pisa.title = "Leaning Tower of Pisa"
mapView.addAnnotation(pisa)
}
func mapView(_ mapView: MGLMapView, imageFor annotation: MGLAnnotation) -> MGLAnnotationImage? {
// Try to reuse the existing ‘pisa’ annotation image, if it exists.
var annotationImage = mapView.dequeueReusableAnnotationImage(withIdentifier: "pisa")
if annotationImage == nil {
// Leaning Tower of Pisa by Stefan Spieler from the Noun Project.
var image = UIImage(named: "pisavector")!
// The anchor point of an annotation is currently always the center. To
// shift the anchor point to the bottom of the annotation, the image
// asset includes transparent bottom padding equal to the original image
// height.
//
// To make this padding non-interactive, we create another image object
// with a custom alignment rect that excludes the padding.
image = image.withAlignmentRectInsets(UIEdgeInsets(top: 0, left: 0, bottom: image.size.height/2, right: 0))
// Initialize the ‘pisa’ annotation image with the UIImage we just loaded.
annotationImage = MGLAnnotationImage(image: image, reuseIdentifier: "pisa")
}
return annotationImage
}
func mapView(_ mapView: MGLMapView, annotationCanShowCallout annotation: MGLAnnotation) -> Bool {
// Always allow callouts to popup when annotations are tapped.
return true
}
}