如何在fragment recyclerView中使用搜索栏

public class MyFragment extends Fragment {
    private EditText searchEditText;
    private RecyclerView recyclerView;
    private MyAdapter adapter;
    private List<DataItem> dataList;

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

        // 初始化搜索栏和RecyclerView
        searchEditText = view.findViewById(R.id.search_edit_text);
        recyclerView = view.findViewById(R.id.recycler_view);

        // 初始化数据源
        dataList = new ArrayList<>();
        // 添加数据项到数据源

        // 创建适配器
        adapter = new MyAdapter(dataList);

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

        // 监听搜索栏的文本变化事件
        searchEditText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
            }

            @Override
            public void afterTextChanged(Editable s) {
                // 获取搜索关键字
                String keyword = s.toString().toLowerCase(Locale.getDefault());
                // 调用适配器的过滤方法
                adapter.getFilter().filter(keyword);
            }
        });

        return view;
    }

    private class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> implements Filterable {
        private List<DataItem> originalDataList;
        private List<DataItem> filteredDataList;

        public MyAdapter(List<DataItem> dataList) {
            this.originalDataList = dataList;
            this.filteredDataList = dataList;
        }

        @NonNull
        @Override
        public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            // 创建ViewHolder
        }

        @Override
        public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
            // 绑定ViewHolder
        }

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

        @Override
        public Filter getFilter() {
            return new Filter() {
                @Override
                protected FilterResults performFiltering(CharSequence constraint) {
                    String keyword = constraint.toString().toLowerCase(Locale.getDefault());
                    List<DataItem> filteredList = new ArrayList<>();
                    for (DataItem item : originalDataList) {
                        // 根据搜索关键字过滤数据
                        if (item.getName().toLowerCase(Locale.getDefault()).contains(keyword)) {
                            filteredList.add(item);
                        }
                    }
                    FilterResults results = new FilterResults();
                    results.values = filteredList;
                    results.count = filteredList.size();
                    return results;
                }

                @Override
                protected void publishResults(CharSequence constraint, FilterResults results) {
                    filteredDataList = (List<DataItem>) results.values;
                    notifyDataSetChanged();
                }
            };
        }

        private class ViewHolder extends RecyclerView.ViewHolder {
            // ViewHolder的代码
        }
    }

    private class DataItem {
        private String name;
        // 数据项的其他属性和方法
    }
}