Add a marker symbol

This example uses an image to mark a point on the map. Download the image here and add it to your Xcode project.

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

ViewController
import Mapbox
class ViewController: UIViewController, MGLMapViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
let mapView = MGLMapView(frame: view.bounds)
mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
mapView.delegate = self
// Set the map’s center coordinate and zoom level.
mapView.setCenter(CLLocationCoordinate2D(latitude: 41.8864, longitude: -87.7135), zoomLevel: 13, animated: false)
view.addSubview(mapView)
}
func mapView(_ mapView: MGLMapView, didFinishLoading style: MGLStyle) {
// Create point to represent where the symbol should be placed
let point = MGLPointAnnotation()
point.coordinate = mapView.centerCoordinate
// Create a data source to hold the point data
let shapeSource = MGLShapeSource(identifier: "marker-source", shape: point, options: nil)
// Create a style layer for the symbol
let shapeLayer = MGLSymbolStyleLayer(identifier: "marker-style", source: shapeSource)
// Add the image to the style's sprite
if let image = UIImage(named: "house-icon") {
style.setImage(image, forName: "home-symbol")
}
// Tell the layer to use the image in the sprite
shapeLayer.iconImageName = NSExpression(forConstantValue: "home-symbol")
// Add the source and style layer to the map
style.addSource(shapeSource)
style.addLayer(shapeLayer)
}
}
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