Why doesn't Swift trigger onCameraChanged, Mapbox?

Question

I have a main controller with code like this setting up a Mapbox in a portion of the screen, and it works... However the code as documented does not ever trigger the camera viewport moved or tapped. Am I missing a step?

The onCameraChange shows in the log once and not when I pan around the map world.

import UIKit
import MapboxMaps
class ViewController: UIViewController, MapInitOptionsProvider, URLSessionDelegate {
 
 private var mapView: MapView!
 private var cancellables: Set<AnyCancelable> = []
 
 public func mapInitOptions() -> MapInitOptions {
 //TODO... never called???
 let cameraOptions = CameraOptions(center: CLLocationCoordinate2D(latitude: NUMBER, longitude: NUMBER), zoom: 1)
 
 //return a custom MapInitOptions
 return MapInitOptions(
 cameraOptions: cameraOptions,
 styleURI: .light)// StyleURI(rawValue: "mapbox://my/favorite/style/goes/here..."))
 }
 override func viewDidLoad() {
 let defaults = UserDefaults.standard
 
 super.viewDidLoad()
 self.mapView = MapView(frame: view.bounds)
 self.mapView.mapboxMap.mapStyle = MapStyle(uri:StyleURI(rawValue: "mapbox://my-favorite-style")!)
 self.mapView.mapboxMap.onCameraChanged.observe { [weak self] cameraChanged in
 guard let self else { return }
 updateMap()
 print("onCameraChange")
 }.store(in: &cancellables)
 self.mapView.gestures.onMapTap.observe { [unowned self] context in
 print("onMapTap")
 updateMap()
 }.store(in: &cancellables)
 ...
 

Answer 1

It turns out it needed IBOutlet as described here:

https://www.youtube.com/watch?app=desktop&v=CVqdylyDSao

So within viewcontroller:

@IBOutlet var nameOfview: MapView!

and nameOfview can be referenced.

• Hal Mueller: Please mark your answer as Accepted.