dutyList = recyclerView {
                    val orientation = LinearLayoutManager.VERTICAL.also {
                        layoutManager = LinearLayoutManager(context, it, false)
                    }
                    adapter =
                        DutyAdapter(app.plannedRec) { partItem: Int, shift: PlannedShift -> partItemClicked(partItem,shift) }
                        backgroundColorResource = R.color.colorPrimaryDark
                }

class DutyAdapter(val rec: ArrayList<PlannedShift>,val clickListener: (Int, PlannedShift) -> Unit) : RecyclerView.Adapter<DutyHolder>() { ....