已将来自places/photo api获取的项目添加到回收器视图，但该视图为空

// 创建布局管理器
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);

// 创建适配器
PhotoAdapter adapter = new PhotoAdapter(photoList);
recyclerView.setAdapter(adapter);

// 加载数据
loadPhotosFromPlacesAPI();

private void loadPhotosFromPlacesAPI() {
    // 模拟从Places API获取数据
    List<Photo> photoList = new ArrayList<>();
    // 假设已经获取到了photoList数据

    // 更新适配器数据
    adapter.setPhotoList(photoList);
    adapter.notifyDataSetChanged();
}

// 适配器类
public class PhotoAdapter extends RecyclerView.Adapter<PhotoAdapter.PhotoViewHolder> {
    private List<Photo> photoList;

    public PhotoAdapter(List<Photo> photoList) {
        this.photoList = photoList;
    }

    public void setPhotoList(List<Photo> photoList) {
        this.photoList = photoList;
    }

    @NonNull
    @Override
    public PhotoViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_photo, parent, false);
        return new PhotoViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull PhotoViewHolder holder, int position) {
        Photo photo = photoList.get(position);
        // 设置图片
        Glide.with(holder.itemView.getContext()).load(photo.getUrl()).into(holder.photoImageView);
    }

    @Override
    public int getItemCount() {
        return photoList.size();
    }

    static class PhotoViewHolder extends RecyclerView.ViewHolder {
        ImageView photoImageView;

        PhotoViewHolder(View itemView) {
            super(itemView);
            photoImageView = itemView.findViewById(R.id.photoImageView);
        }
    }
}