Third step creating an arc layout manager

ArcLayoutManager.kt

    private fun fill(recycler: RecyclerView.Recycler?, state: RecyclerView.State?) {
        detachAndScrapAttachedViews(recycler ?: return)

        for (itemIndex in 0 until itemCount) {
            val view = recycler.getViewForPosition(itemIndex)
            addView(view)

            val viewWidth = pxFromDp(context, ITEM_WIDTH)
            val viewHeight = pxFromDp(context, ITEM_HEIGHT)

            measureChildWithMargins(view ?: return, viewWidth.toInt(), viewHeight.toInt())
        }

        recycler.scrapList.toList().forEach {
            recycler.recycleView(it.itemView)
        }
    }