Recyclerview remove element with swipe event

gistfile1.txt

  //view
  private val itemTouchHelper =
        ItemTouchHelper(object : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.RIGHT) {
            override fun onMove(
                recyclerView: RecyclerView,
                viewHolder: RecyclerView.ViewHolder,
                target: RecyclerView.ViewHolder
            ): Boolean = false

            override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
                val position = viewHolder.adapterPosition
                adapter.getItem(position)?.let {
                    //remove from database
                    repository.delete(it.id, it) {
                        adapter.remove(it)
                    }
                }
            }
        })
        
    //adapter
    private const val INVALID_POSITION = -1
    fun remove(item: Note) {
        val position = notes.indexOf(item)
        if (position > INVALID_POSITION) {
            notes.remove(item)
            notifyItemRemoved(position)
        }
    }