feat:增加回到顶部功能

lib/views/home.dart

@@ -40,22 +40,21 @@ class _HomePage extends State<HomePage> {
       icon: Icons.account_circle_outlined,
       activeIcon: Icons.account_circle,
       page: ProfilePage(),
-    )
+    ),
   ];
 
   List<BottomNavigationBarItem> get bottomNavItems =>
-      navItems.map((item) => BottomNavigationBarItem(
-        icon: Icon(item.icon),
-        activeIcon: Icon(item.activeIcon),
-        label: item.label,
-      )).toList();
+      navItems
+          .map(
+            (item) => BottomNavigationBarItem(
+              icon: Icon(item.icon),
+              activeIcon: Icon(item.activeIcon),
+              label: item.label,
+            ),
+          )
+          .toList();
 
-  List<Widget> get tabPages =>
-      navItems.map((item) => item.page).toList();
-
-  bool isShow(int index) {
-    return index == 0 || index == 2;
-  }
+  List<Widget> get tabPages => navItems.map((item) => item.page).toList();
 
   @override
   Widget build(BuildContext context) {
@@ -64,19 +63,20 @@ class _HomePage extends State<HomePage> {
         centerTitle: true,
         title: Text('Food Hub', style: TextStyle(color: Colors.white)),
         backgroundColor: Theme.of(context).primaryColor,
-        leading: IconButton(
-          icon: Icon(Icons.menu, color: Colors.white),
-          onPressed: () {
-            // 打开侧边栏或菜单
+        leading: Builder(
+          builder: (context) {
+            return IconButton(
+              icon: const Icon(Icons.menu),
+              color: Colors.white,
+              onPressed: () => Scaffold.of(context).openDrawer(),
+            );
           },
         ),
-        actions: homeActions(),
+        actions: homeActions(context),
       ),
       backgroundColor: Color(0xFFF5F5F5),
-      endDrawer: const SettingsDrawer(),
+      drawer: const SettingsDrawer(),
       body: tabPages[_currentIndex],
-      floatingActionButton:
-          isShow(_currentIndex) ? addItemButton(context) : null,
       bottomNavigationBar: NavBar(
         navItems: bottomNavItems,
         currentIndex: _currentIndex,
@@ -89,17 +89,3 @@ class _HomePage extends State<HomePage> {
     );
   }
 }
-
-Widget addItemButton(BuildContext context) {
-  void onAddItemClick(BuildContext context) {
-    Navigator.pushNamed(context, '/recordForm');
-  }
-
-  return FloatingActionButton(
-    mini: true,
-    onPressed: () => onAddItemClick(context),
-    backgroundColor: Theme.of(context).primaryColor,
-    shape: const CircleBorder(),
-    child: Icon(Icons.add, color: Colors.white),
-  );
-}