如何检测recyclerview的滚动超出它的边界？

RecyclerView.OnScrollListener scrollListener = new RecyclerView.OnScrollListener() {
    @Override
    public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
        super.onScrollStateChanged(recyclerView, newState);

        if (newState == RecyclerView.SCROLL_STATE_IDLE) {
            // RecyclerView停止滚动时的操作
            checkBoundary(recyclerView);
        }
    }

    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);

        // RecyclerView滚动时的操作
        checkBoundary(recyclerView);
    }
};

private void checkBoundary(RecyclerView recyclerView) {
    LinearLayoutManager layoutManager = (LinearLayoutManager) recyclerView.getLayoutManager();

    int firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition();
    int lastVisibleItemPosition = layoutManager.findLastVisibleItemPosition();
    int itemCount = layoutManager.getItemCount();

    if (firstVisibleItemPosition == 0) {
        // RecyclerView已经滚动到顶部
        // 处理逻辑...
    }

    if (lastVisibleItemPosition == itemCount - 1) {
        // RecyclerView已经滚动到底部
        // 处理逻辑...
    }
}

recyclerView.addOnScrollListener(scrollListener);