我的Flutter移动的应用有6个页面，分别是EmploymentListPage、ClaimsPage、NotificationsPage、SettingsPage、EmploymentDetailsPage和EmploymentClaimsPage。

EmploymentListPage、ClaimsPage、NotificationsPage和SettingsPage可以通过底部导航栏导航，但EmploymentDetailsPage可以通过EmploymentListPage导航，EmploymentClaimsPage可以通过EmploymentDetailsPage导航。

此时，底部导航栏已修复，可查看EmploymentListPage、ClaimsPage、NotificationsPage和SettingsPage。
但我想显示底部导航栏的其他两个网页也。所以我能做什么呢？
这是homepage.dart的代码，它有一个底部的导航栏。在这个代码文件中，我在Scaffold小部件的主体部分调用了EmployementListPage，ClaimsPage，NotificationsPage和SettingsPage。

import 'package:apex_salary_packaging/screens/claimsPage.dart';
import 'package:apex_salary_packaging/screens/employmentListPage.dart';
import 'package:apex_salary_packaging/screens/notificationPage.dart';
import 'package:apex_salary_packaging/screens/settingsPage.dart';
import 'package:apex_salary_packaging/services/pushNotificationService.dart';
import 'package:apex_salary_packaging/services/serviceLocator.dart';
import 'package:flutter/material.dart';

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
  final PushNotificationService? pushNotificationService =
      locator<PushNotificationService>();

  int index = 0;
  String errorMessage = "";
  bool? showErrorMessage = false;
  int pushNotificationCount = 0;
  int selectedIndex = 0;

  var pages = <Widget>[
    EmploymentListPage(),
    ClaimsPage(),
    NotificationsPage(),
    SettingsPage()
  ];

  @override
  void initState() {
    super.initState();
    onLoadUnAcknowledgedCount();
    WidgetsBinding.instance!.addObserver(this);
    pushNotificationService!.onCountChange.listen(onNotificationCountChange);
    pushNotificationService!.onSelectedPageChange.listen(onPageChange);
    pushNotificationService!.checkForInitialMessage();
  }

  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    super.didChangeAppLifecycleState(state);
    if (state == AppLifecycleState.resumed) {
      onLoadUnAcknowledgedCount();
    }
  }

  void dispose() {
    WidgetsBinding.instance!.removeObserver(this);
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: pages.elementAt(selectedIndex),
      bottomNavigationBar: BottomNavigationBar(
        type: BottomNavigationBarType.fixed,
        currentIndex: selectedIndex,
        onTap: onItemTapped,
        items: <BottomNavigationBarItem>[
          BottomNavigationBarItem(
            icon: Icon(Icons.home),
            activeIcon: Icon(Icons.home),
            label: 'Home',
          ),
          BottomNavigationBarItem(
            icon: Icon(
              Icons.add_circle_rounded,
            ),
            activeIcon: Icon(Icons.add_circle_rounded),
            label: 'Claims',
          ),
          BottomNavigationBarItem(
            label: 'Notifications',
            icon: Stack(
              children: <Widget>[
                Icon(Icons.notifications),
                Visibility(
                  visible: pushNotificationCount > 0,
                  child: Positioned(
                    right: 0,
                    child: Container(
                      padding: EdgeInsets.all(1),
                      decoration: BoxDecoration(
                        color: Colors.red[900],
                        borderRadius: BorderRadius.circular(6),
                      ),
                      constraints: BoxConstraints(
                        minWidth: 12,
                        minHeight: 12,
                      ),
                      child: Text(
                        pushNotificationCount.toString(),
                        style: TextStyle(
                          color: Colors.white,
                          fontSize: 10,
                        ),
                        textAlign: TextAlign.center,
                      ),
                    ),
                  ),
                )
              ],
            ),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.settings),
            label: 'Settings',
          ),
        ],
      ),
    );
  }

  onItemTapped(index) {
    setState(() {
      this.selectedIndex = index;
    });
  }

  onNotificationCountChange(dynamic eventData) {
    this.onLoadUnAcknowledgedCount();
  }

  onPageChange(event) {
    if (this.mounted) {
      setState(() {
        selectedIndex = event;
      });
    }
  }

  onLoadUnAcknowledgedCount() async {
    if (this.mounted) {
      int count = await pushNotificationService!.onLoadNotificationCount();
      setState(() {
        pushNotificationCount = count;
      });
    }
  }
}