2显示广告时使用回收器视图getItemcount方法的列表？

public class AdAdapter extends RecyclerView.Adapter<AdViewHolder> {
    private List<Ad> adList;

    // 构造函数，传入广告列表
    public AdAdapter(List<Ad> adList) {
        this.adList = adList;
    }

    @Override
    public int getItemCount() {
        // 返回广告列表的项数
        return adList.size();
    }

    @Override
    public AdViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // 创建广告项的视图
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.ad_item, parent, false);
        return new AdViewHolder(view);
    }

    @Override
    public void onBindViewHolder(AdViewHolder holder, int position) {
        // 绑定广告数据到视图
        Ad ad = adList.get(position);
        holder.bind(ad);
    }
}