maps.kt

override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        UiUtils.hideKeyboard(activity!!)
        fab.setOnClickListener {
            presenter.myLocationButtonClicked()
        }
        city_name.setOnClickListener {
            presenter.citySearchClicked()
        }
        map_view.onCreate(savedInstanceState)
        map_view.onResume()
        map_view?.getMapAsync {
            googleMap = it
            googleMap.clear()
            googleMap.uiSettings.isMyLocationButtonEnabled = false

            clusterManager = ClusterManager(activity, googleMap)
            googleMap.setOnCameraIdleListener(clusterManager)
            googleMap.setOnMarkerClickListener(clusterManager)
          .....