TV RecyclerView 滑动后操作保持落焦在左侧第一个View

internal fun RecyclerView.findChildView(x: Float, y: Float): View? {
    layoutManager?.let {
        for (i in childCount - 1 downTo 0) {
            val child = getChildAt(i)
            child?.let { view ->
                if (x >= view.left && x <= view.right && y >= view.top && y <= view.bottom) {
                    return view
                }
            }
        }
    }
    return null
}

/** 重新获取焦点时自动滚动定位 */
    fun scrollBy() {
        val view = findChildView(x + 100f, y + 100f)
        val position = if (view == null) getCurrentFirstIndex() else getChildLayoutPosition(view)
        Logger.d("scrollBy position $position view is null ${view == null}")
        val firstItem: Int = speedLayoutManager.findFirstVisibleItemPosition()
        val lastItem: Int = speedLayoutManager.findLastVisibleItemPosition()
        //区分情况
        if (position <= firstItem) {
            //当要置顶的项在当前显示的第一个项的前面时
            speedLayoutManager.smoothScrollToPosition("scrollBy1", this, position)
            Logger.d("scrollBy smoothScrollToPosition1")
        } else if (position <= lastItem) {
            //当要置顶的项已经在屏幕上显示时
            val top: Int = getChildAt(position - firstItem).top
            smoothScrollBy(0, top)
            Logger.d("scrollBy smoothScrollBy")
        } else {
            //当要置顶的项在当前显示的最后一项的后面时
            speedLayoutManager.smoothScrollToPosition("scrollBy2", this, position)
            Logger.d("scrollBy smoothScrollToPosition2")
        }
        AppListKeyDownUtils.setFocus("scrollBy", position)
    }