如何在RecyclerView android的位置停止特定视图的滚动？

public class CustomLayoutManager extends LinearLayoutManager {
    private int stopScrollPosition = -1;

    public CustomLayoutManager(Context context) {
        super(context);
    }

    public void setStopScrollPosition(int position) {
        stopScrollPosition = position;
    }

    @Override
    public boolean canScrollVertically() {
        return true;
    }

    @Override
    public int scrollVerticallyBy(int dy, RecyclerView.Recycler recycler, RecyclerView.State state) {
        int scrolled = super.scrollVerticallyBy(dy, recycler, state);

        if (stopScrollPosition != -1 && findViewByPosition(stopScrollPosition) != null) {
            stopScroll();
            stopScrollPosition = -1;
        }

        return scrolled;
    }
}