如何在使用片段膨胀ViewPager的片段中获取ChildFragmentManager

public class MyFragment extends Fragment {
    private ViewPager viewPager;

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

        // 获取ChildFragmentManager的实例
        FragmentManager childFragmentManager = getChildFragmentManager();

        // 在ChildFragmentManager中执行操作，例如添加片段到ViewPager
        FragmentPagerAdapter adapter = new MyPagerAdapter(childFragmentManager);
        viewPager.setAdapter(adapter);

        return view;
    }
}