那要怎么修改呢

你可以将 `ImageAdapter` 类修改为继承自 `RecyclerView.Adapter`，然后实现 `getItemCount()`、`onCreateViewHolder()` 和 `onBindViewHolder()` 方法。具体实现如下：

public class ImageAdapter extends RecyclerView.Adapter<ImageAdapter.ViewHolder> {
    private List<ImageBean> mImages;

    public ImageAdapter(List<ImageBean> images) {
        mImages = images;
    }

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

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

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        ImageBean imageBean = mImages.get(position);
        Glide.with(holder.itemView)
                .load(imageBean.getUrl())
                .transform(new CenterCrop(), new RoundedCornersTransformation(10, 0, RoundedCornersTransformation.CornerType.TOP))
                .into(holder.imageView);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(holder.itemView.getContext(), "被点击了", Toast.LENGTH_SHORT).show();
            }
        });
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public ImageView imageView;

        public ViewHolder(View itemView) {
            super(itemView);
            imageView = itemView.findViewById(R.id.iv_poster_image);
        }
    }
}

然后，在使用 `ViewPager2` 的地方，创建一个 `ImageAdapter` 对象，并将其传入 `ViewPager2` 的 `setAdapter()` 方法中：

List<ImageBean> images = // 获取数据集合
ViewPager2 viewPager2 = findViewById(R.id.viewPager2);
viewPager2.setAdapter(new ImageAdapter(images));