Observe lifecycle of jetpack compose navigator to get current screen name

Because fragments are not used in Jetpack navigation, I want to observe the lifecycle of jetpack navigator to get current destination or screen name. As you know Jetpack navigation is not using fragments rather it uses deep linking structure. I searched a lot but couldn't find any suitable solution.

I want to get the route or destination name for my sdk to track the screens flow.

    class AppLifeCycleObserver : Application.ActivityLifecycleCallbacks {

    var route: String? = ""

    override fun onActivityCreated(p0: Activity, p1: Bundle?) {
        log("onActivityCreated")
    }

    val TAG = "AppLifeCycleObserver"

    fun log(message: String) {
        Log.e(TAG, message)
    }

    override fun onActivityStarted(p0: Activity) {
        log("onActivityStarted")

        if (p0 is FragmentActivity) {
            p0.supportFragmentManager.registerFragmentLifecycleCallbacks(object :
                FragmentManager.FragmentLifecycleCallbacks() {

                override fun onFragmentCreated(
                    fm: FragmentManager,
                    f: Fragment,
                    savedInstanceState: Bundle?
                ) {
                    super.onFragmentCreated(fm, f, savedInstanceState)
                    log("onFragmentCreated")
                }


                override fun onFragmentDestroyed(fm: FragmentManager, f: Fragment) {
                    super.onFragmentDestroyed(fm, f)
                    log("onFragmentDestroyed")
                }

            }, true)
        } else if (p0 is ComponentActivity) {
          (p0 as MasterActivity).navController_field.currentBackStackEntry.destination.route
            log("ComponentActivity")
        }

    }

    override fun onActivityResumed(p0: Activity) {
        log("onActivityResumed")
    }

    override fun onActivityPaused(p0: Activity) {
        log("onActivityPaused")
    }

    override fun onActivityStopped(p0: Activity) {
        log("onActivityStopped")
    }

    override fun onActivitySaveInstanceState(p0: Activity, p1: Bundle) {

    }

    override fun onActivityDestroyed(p0: Activity) {
        log("onActivityDestroyed")
    }



}

I can't access the

      (p0 as MasterActivity).navController_field.currentBackStackEntry.destination.route

because this is inaccessible , I find it through debugging