如何从RecyclerView保存CheckBox状态？

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    private List<MyData> dataList;
    private HashMap<Integer, Boolean> checkedMap;

    public MyAdapter(List<MyData> dataList) {
        this.dataList = dataList;
        checkedMap = new HashMap<>();
    }

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

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        MyData data = dataList.get(position);
        holder.checkBox.setChecked(checkedMap.get(position) != null && checkedMap.get(position));
        holder.checkBox.setOnCheckedChangeListener((buttonView, isChecked) -> {
            checkedMap.put(position, isChecked);
        });
        // 绑定其他数据到ViewHolder中的视图
    }

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

    public void saveCheckedItems() {
        for (Map.Entry<Integer, Boolean> entry : checkedMap.entrySet()) {
            int position = entry.getKey();
            boolean isChecked = entry.getValue();
            MyData data = dataList.get(position);
            // 根据isChecked进行相应的处理，例如保存到数据库
        }
    }

    public static class ViewHolder extends RecyclerView.ViewHolder {
        CheckBox checkBox;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            checkBox = itemView.findViewById(R.id.checkbox);
            // 初始化其他视图
        }
    }
}