如何在自定义Recyclerview中实现搜索？

<EditText
    android:id="@+id/searchEditText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="Search"
    android:inputType="text"
    android:maxLines="1" />

public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {
    private List<String> dataList;
    private List<String> filteredList;

    // 构造方法和其他必要的方法...

    public void filter(String query) {
        filteredList.clear();
        if (TextUtils.isEmpty(query)) {
            filteredList.addAll(dataList);
        } else {
            String lowerCaseQuery = query.toLowerCase();
            for (String item : dataList) {
                if (item.toLowerCase().contains(lowerCaseQuery)) {
                    filteredList.add(item);
                }
            }
        }
        notifyDataSetChanged();
    }

    // 其他必要的方法...
}

public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private CustomAdapter adapter;
    private EditText searchEditText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.recyclerView);
        searchEditText = findViewById(R.id.searchEditText);

        // 初始化RecyclerView和适配器...

        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) {
                adapter.filter(s.toString());
            }
        });
    }
}