如何在使用cardview和约束布局的fragment中初始化recyclerview？

// 在Fragment中初始化RecyclerView
public class MyFragment extends Fragment {
    private RecyclerView recyclerView;
    private MyAdapter adapter;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_layout, container, false);
        recyclerView = view.findViewById(R.id.recyclerView);

        // 创建布局管理器和适配器
        RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity());
        adapter = new MyAdapter(dataList);

        // 设置布局管理器和适配器
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setAdapter(adapter);

        return view;
    }
}

// 创建自定义的RecyclerView适配器
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
    private List<String> dataList;

    public MyAdapter(List<String> dataList) {
        this.dataList = dataList;
    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.cardview_item, parent, false);
        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        // 设置数据到ViewHolder中的控件上
        holder.textView.setText(dataList.get(position));
    }

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

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;

        public MyViewHolder(View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.textView);
        }
    }
}