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  currentNavController?.value?.addOnDestinationChangedListener { _, destination, _ ->
            if (mainScreenIds.contains(destination.id)) {
                bottomNavigation.visibility = View.VISIBLE
            } else {
                bottomNavigation.visibility = View.GONE
            }
        }

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override fun onSupportNavigateUp() = currentNavController?.value?.navigateUp(config) ?: false

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   override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        bottomNavigation = findViewById(R.id.nav_view)

        val appBarConfiguration = AppBarConfiguration(
            setOf(
                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications
            )
        )

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fun BottomNavigationView.setupWithNavController(
    navGraphIds: List<Int>,
    fragmentManager: FragmentManager,
    containerId: Int,
    intent: Intent
): LiveData<NavController> {

    // Map of tags
    val graphIdToTagMap = SparseArray<String>()
    // Result. Mutable live data with the selected controlled

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/**
 * Builder for [Preview] that takes in a [WeakReference] of the view finder and
 * [PreviewConfig], then instantiates a [Preview] which automatically
 * resizes and rotates reacting to config changes.
 */
class AutoFitPreviewBuilder private constructor(config: PreviewConfig,
                                                viewFinderRef: WeakReference<TextureView>) {
    /** Public instance of preview use-case which can be used by consumers of this adapter */
    val useCase: Preview