RecyclerView SnapHelper fails to show first/last items

Question

I have a RecyclerView which is attached to a LinearSnapHelper to snap to center item. When I scroll to the first or last items, these items are not ful

Answer 1

I found a less invasive answer:

private class PagerSelectSnapHelper : LinearSnapHelper() {

    override fun findSnapView(layoutManager: RecyclerView.LayoutManager): View? {
        // Use existing LinearSnapHelper but override when the itemDecoration calculations are off
        val snapView = super.findSnapView(layoutManager)
        return if (!snapView.isViewInCenterOfParent(layoutManager.width)) {
            val endView = layoutManager.findViewByPosition(layoutManager.itemCount - 1)
            val startView = layoutManager.findViewByPosition(0)

            when {
                endView.isViewInCenterOfParent(layoutManager.width) -> endView
                startView.isViewInCenterOfParent(layoutManager.width) -> startView
                else -> snapView
            }
        } else {
            snapView
        }
    }

    private fun View?.isViewInCenterOfParent(parentWidth: Int): Boolean {
        if (this == null || width == 0) {
            return false
        }
        val parentCenter = parentWidth / 2
        return left < parentCenter && parentCenter < right
    }
}