为什么iOS委派在KMM中不能正常工作

我有一个KMM项目，需要访问用户的位置.我的LocationClient是用Kotlin 编写的.

一切正常，但在将Kotlin从1.8.20更新到1.9.20之后，我看到了奇怪的行为.

我像预期的那样得到了最初的几个位置，但随后代理就停止将位置发回.我通常在它停止之前得到5到6个位置，从来不会超过10个.我已经在模拟器和真实设备上测试过了，得到了同样的结果.

在SWIFT端，开始发送位置的触发器在一个"onspecar"块中，来回导航会触发另几个位置通过，但随后它们会再次停止.

当位置停止时，手机仍然认为应用程序正在监听位置，并继续显示适当的隐私通知.当我导航离开并停止监听位置时，这将被正确删除.

位置客户端:

actual class LocationProviderImpl : LocationProvider {
     private val locationManager = CLLocationManager()

    private class LocationDelegate : NSObject(), CLLocationManagerDelegateProtocol {
        var onLocationUpdate: ((Location?) -> Unit)? = null
        override fun locationManager(manager: CLLocationManager, didUpdateLocations: List<*>) {
//This is correctly called for the first few locations then stops
            didUpdateLocations.firstOrNull()?.let {
                val location = it as CLLocation
                location.coordinate.useContents {
                    onLocationUpdate?.invoke(Location(latitude, longitude, it.altitude))
                }
            }
        }

        override fun locationManager(manager: CLLocationManager, didFailWithError: NSError) {
//This never gets called
            onLocationUpdate?.invoke(null)
        }
    }
override fun getCurrentLocationAsFlow(): Flow<Location?> = callbackFlow {
        locationManager.requestAlwaysAuthorization()
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.distanceFilter = kCLDistanceFilterNone
        val locationDelegate = LocationDelegate()
        locationDelegate.onLocationUpdate = { location ->
            trySend(
                location
            ).isSuccess
        }
        locationManager.delegate = locationDelegate
         locationManager.startUpdatingLocation()
       awaitClose {
//This is never called
            locationManager.stopUpdatingLocation()
        }
    }.flowOn(Dispatchers.IO)

    fun requestBackground() {
        locationManager.allowsBackgroundLocationUpdates = true
    }

    fun stopBackground() {
        locationManager.allowsBackgroundLocationUpdates = false
    }
    fun stopLocationUpdates() {
        locationManager.stopUpdatingLocation()
    }
}

它的用法如下:

object GpsService {

    private lateinit var locationClient: LocationProviderImpl
    private var initialized = false
    private var serviceScope = CoroutineScope(Dispatchers.IO)
 
 fun initialize(appModule: AppModule) {
        if (!initialized) {
            locationClient = LocationProviderImpl()
}
}
    

  fun startLocationListener() {
  locationClient.getCurrentLocationAsFlow().cancellable()
            .catch { e ->
                e.printStackTrace()
            }
            .mapNotNull { it }
            .onEach { location ->
                // send location to view
                _state.update {
                    it.copy(
                        currentLocation = location,
                        formattedAltitude = getFormattedAltitude(location.altitude)
                    )
                }
     }.launchIn(serviceScope)
    }

我没有收到任何错误或警告(并且到处都设置了断点/println()S)，也没有命中任何错误或CATCH块，我只是在前几个位置之后停止获取任何位置.这一切都在Kotlin 1.8.20上运行得很好！