fragment 跳转另一个fragment

public class NoteAllFragment extends Fragment {

    NoteAllFragment noteAllFragment = this;
    CircleNoteFragment circleNoteFragment = new CircleNoteFragment();
    MyNoteFragment myNoteFragment = new MyNoteFragment();
    ListView noteall_listview;
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_noteall, container, false);
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public void onResume() {
        loadData();
        super.onResume();
    }

    private void loadData() {
        noteall_listview = getActivity().findViewById(R.id.noteall_listview);
        List<String> list = new ArrayList<>();
        DataBaseHelper dataBaseHelper = DataBaseHelper.getInstance(getContext());
        Dao<Note,Integer> notes = null;
        try {
            notes = dataBaseHelper.getDao(Note.class);
            for(Note note : notes.queryForAll()){
                 list.add(note.getTitle());
             }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        ArrayAdapter<String> arrayAdapter =
                new ArrayAdapter(getContext(),android.R.layout.simple_list_item_1,list);
        noteall_listview.setAdapter(arrayAdapter);
        noteall_listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                getActivity().getSupportFragmentManager()
                        .beginTransaction()
                        .hide(noteAllFragment).addToBackStack(null)
                        .show(circleNoteFragment)
                        .hide(myNoteFragment)
                        .commit();
            }
        });
    }
}

在item点击事件中，从当前fragment 到 另一个fragment 为空白，这是为什么？