feat:增加底部标题栏

lib/pages/home_page.dart

@@ -1,11 +1,14 @@
 import 'package:blog_app/apis/blog.dart';
 import 'package:blog_app/layout/drawer.dart';
 import 'package:blog_app/layout/menu.dart';
+import 'package:blog_app/layout/nav_bar.dart';
 import 'package:blog_app/models/blog.dart';
 import 'package:blog_app/widget/search.dart';
 import 'package:flutter/material.dart';
 
 class HomePage extends StatefulWidget {
+  const HomePage({super.key});
+
   @override
   _HomePageState createState() => _HomePageState();
 }
@@ -162,6 +165,20 @@ class _HomePageState extends State<HomePage> {
     return buildSearchResultList(context, _searchResults);
   }
 
+  void _onBottomNavTap(int index) {
+    setState(() {
+      _currentPageIndex = index;
+      if (_isSearching) {
+        _exitSearch();
+      }
+    });
+    _pageController.animateToPage(
+      index,
+      duration: Duration(milliseconds: 300),
+      curve: Curves.easeInOut,
+    );
+  }
+
   void onTapDrawerItem(int index) {
     setState(() {
       _currentPageIndex = index;
@@ -220,6 +237,11 @@ class _HomePageState extends State<HomePage> {
       ),
       drawer: _buildDrawer(),
       body: Padding(padding: EdgeInsets.all(10), child: _buildPageView()),
+      bottomNavigationBar: buildBottomNavigationBar(
+        context: context,
+        index: _currentPageIndex,
+        onTap: _onBottomNavTap,
+      ),
     );
   }
 }