KMP MapKit Gesture detection

I am using Kotlin Multiplatform with MapKit-Compose and would like to keep track of user gestures on the map like zooming/pinching, panning, etc.

So I thought I could create the MapView and add the GestureRecognizers.

val mkMapView =
    remember {
        MKMapView().apply {
            // Init.....
            setZoomEnabled(true)
            setScrollEnabled(true)
            userInteractionEnabled = true

            setDelegate(delegate)
            delegate.addGestureRecognizer(mkMapView = this)
        }
    }

@OptIn(BetaInteropApi::class)
@ObjCAction
fun handleUserInteraction() {
    Logger.d("userZoomScrollOverride triggered")
}

@OptIn(BetaInteropApi::class)
@ObjCAction
fun handleMapPan(recognizer: UIPanGestureRecognizer) {
    Logger.d("userZoomScrollOverride handleMapPan")
}

fun addGestureRecognizer(mkMapView: MKMapView) {
    val panGesture = UIPanGestureRecognizer(target = this, action = NSSelectorFromString("handleMapPan:"))
    val pinchGesture = UIPinchGestureRecognizer(target = this, action = NSSelectorFromString("handleUserInteraction:"))
    val selector = UIGestureRecognizer(target = this, action = NSSelectorFromString("handleUserInteraction:"))
    mkMapView.addGestureRecognizer(selector)
    mkMapView.addGestureRecognizer(panGesture)
    mkMapView.addGestureRecognizer(pinchGesture)
}

Of course the handleUserInteraction/handleMapPan functions are never called. I never before tried working with NSSelectorFromString or anything like that, but it was the only thing I found on the Web.

Anybody that can point me into the right direction?

As Phil Dukhov pointed out, shouldRecognizeSimultaneouslyWithGestureRecognizer is required for the map to register these events.

Define the delegate:

class GestureDelegate :
    NSObject(),
    UIGestureRecognizerDelegateProtocol {
    override fun gestureRecognizer(
        gestureRecognizer: UIGestureRecognizer,
        shouldRecognizeSimultaneouslyWithGestureRecognizer: UIGestureRecognizer,
    ): Boolean {
        return true 
    }
}

Set the delegate and add the gestureRecognizer to the map:

    fun addGestureRecognizer(mkMapView: MKMapView) {
        val gestureDelegate = GestureDelegate()

        val panGesture = UIPanGestureRecognizer(target = this, action = NSSelectorFromString("handleMapPan:"))
        panGesture.delegate = gestureDelegate

        mkMapView.addGestureRecognizer(panGesture)
    }

Handle the events:

    @OptIn(BetaInteropApi::class)
    @ObjCAction
    private fun handleMapPan(recognizer: UIPanGestureRecognizer) {
        Logger.d("Handling pan event.")
    }

Thank you for the help!