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lib/Screens/Home/components/bottom_nav.dart

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+import 'package:flutter/material.dart';
+import 'package:mobile_pos/Screens/Settings/settings_screen.dart';
+import 'package:mobile_pos/constant.dart';
+import 'package:nb_utils/nb_utils.dart';
+
+class BottomNav extends StatefulWidget {
+  const BottomNav({
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  State<BottomNav> createState() => _BottomNavState();
+}
+
+class _BottomNavState extends State<BottomNav> {
+  int _selectedIndex = 0;
+
+  void _onItemTapped(int index) {
+    setState(() {
+      _selectedIndex = index;
+      switch (_selectedIndex) {
+        case 0:
+          Navigator.pushNamed(context, '/home');
+          break;
+        case 1:
+          Navigator.pushNamed(context, '/order');
+          break;
+        case 2:
+          Navigator.pushNamed(context, '/featuredProduct');
+          break;
+        case 3:
+          const SettingScreen().launch(context);
+          break;
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return BottomNavigationBar(
+      type: BottomNavigationBarType.fixed,
+      elevation: 6.0,
+      selectedItemColor: kMainColor,
+      // ignore: prefer_const_literals_to_create_immutables
+      items: [
+        const BottomNavigationBarItem(
+          icon: Icon(Icons.home),
+          label: 'Home',
+        ),
+        const BottomNavigationBarItem(
+          icon: Icon(Icons.flare_sharp),
+          label: 'Maan',
+        ),
+        const BottomNavigationBarItem(
+          icon: Icon(Icons.backpack),
+          label: 'Package',
+        ),
+        const BottomNavigationBarItem(icon: Icon(Icons.settings), label: 'Settings'),
+      ],
+      currentIndex: _selectedIndex,
+      onTap: _onItemTapped,
+    );
+  }
+}