Persisent navbar

lib/home.dart

@@ -1,31 +1,10 @@
 import 'package:firebase_auth/firebase_auth.dart';
+import 'package:ruswipeshare/main.dart';
 import 'package:flutter/material.dart';
 
 class HomeScreen extends StatelessWidget {
   const HomeScreen({super.key});
 
-  @override
-  Widget build(BuildContext context) {
-    return const StatefulHome();
-  }
-}
-
-class StatefulHome extends StatefulWidget {
-  const StatefulHome({super.key});
-
-  @override
-  State<StatefulHome> createState() => _StatefulHomeState();
-}
-
-class _StatefulHomeState extends State<StatefulHome> {
-  int _selectedIndex = 0;
-
-  void _onItemTapped(int index) {
-    setState(() {
-      _selectedIndex = index;
-    });
-  }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -46,32 +25,48 @@ class _StatefulHomeState extends State<StatefulHome> {
           ],
         ),
       ),
-      bottomNavigationBar: BottomNavigationBar(
-        type: BottomNavigationBarType.fixed,
-        backgroundColor: Colors.red,
-        selectedItemColor: Colors.black,
-        unselectedItemColor: Colors.black54,
-        items: const <BottomNavigationBarItem>[
-          BottomNavigationBarItem(
-            icon: Icon(Icons.shopping_cart),
-            label: 'Buy',
-          ),
-          BottomNavigationBarItem(
-            icon: Icon(Icons.attach_money),
-            label: 'Sell',
-          ),
-          BottomNavigationBarItem(
-            icon: Icon(Icons.person),
-            label: 'Profile',
-          ),
-          BottomNavigationBarItem(
-            icon: Icon(Icons.settings),
-            label: 'Settings',
-          ),
-        ],
-        currentIndex: _selectedIndex,
-        onTap: _onItemTapped,
-      ),
+      bottomNavigationBar: MyNavBar(),
     );
   }
 }
+
+// class _HomeScreenState extends State<HomeScreen> {
+//   int _selectedIndex = 0;
+
+//   void _onItemTapped(int index) {
+//     if (_selectedIndex == index) return;
+
+//     setState(() {
+//       _selectedIndex = index;
+//     });
+
+//     Navigator.push(
+//       context,
+//       MaterialPageRoute(builder: (context) => pages.elementAt(index)),
+//     );
+//   }
+
+//   @override
+//   Widget build(BuildContext context) {
+//     return Scaffold(
+//       appBar: AppBar(
+//         title: const Text('FlutterFire UI'),
+//       ),
+//       body: Center(
+//         child: Column(
+//           mainAxisAlignment: MainAxisAlignment.center,
+//           children: [
+//             const Text('You are logged in!'),
+//             ElevatedButton(
+//               onPressed: () {
+//                 FirebaseAuth.instance.signOut();
+//               },
+//               child: const Text('Sign out'),
+//             ),
+//           ],
+//         ),
+//       ),
+//       bottomNavigationBar: const MyNavBar(),
+//     );
+//   }
+// }

lib/main.dart

@@ -1,27 +1,87 @@
 import 'package:firebase_core/firebase_core.dart';
 import 'package:flutter/material.dart';
 import 'package:ruswipeshare/home.dart';
+import 'package:ruswipeshare/sell.dart';
 
 import 'firebase_options.dart';
 import 'authGate.dart';
 
 void main() async {
-   WidgetsFlutterBinding.ensureInitialized();
- await Firebase.initializeApp(
-   options: DefaultFirebaseOptions.android,
- );
+//    WidgetsFlutterBinding.ensureInitialized();
+//  await Firebase.initializeApp(
+//    options: DefaultFirebaseOptions.android,
+//  );
   runApp(const MyApp());
 }
 
 class MyApp extends StatelessWidget {
- const MyApp({super.key});
- @override
- Widget build(BuildContext context) {
-   return MaterialApp(
-     theme: ThemeData(
-       primarySwatch: Colors.blue,
-     ),
-     home: const AuthGate(),
-   );
- }
+  const MyApp({super.key});
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      theme: ThemeData(
+        primarySwatch: Colors.blue,
+      ),
+      home: const HomeScreen(),
+    );
+  }
+}
+
+class MyNavBar extends StatefulWidget {
+  MyNavBar({super.key});
+
+  @override
+  State<MyNavBar> createState() => MyNavBarState();
+}
+
+class MyNavBarState extends State<MyNavBar> {
+  final pages = [
+    const SellScreen(),
+    const SellScreen(),
+  ];
+
+  int _selectedIndex = 0;
+
+  void _onItemTapped(int index) {
+    if (runtimeType == pages.elementAt(index).runtimeType) return;
+
+    setState(() {
+      _selectedIndex = index;
+    });
+
+    Navigator.push(
+      context,
+      MaterialPageRoute(builder: (context) => pages.elementAt(index)),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return BottomNavigationBar(
+      type: BottomNavigationBarType.fixed,
+      backgroundColor: Colors.red,
+      selectedItemColor: Colors.black,
+      unselectedItemColor: Colors.black54,
+      items: const <BottomNavigationBarItem>[
+        BottomNavigationBarItem(
+          icon: Icon(Icons.shopping_cart),
+          label: 'Buy',
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(Icons.attach_money),
+          label: 'Sell',
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(Icons.person),
+          label: 'Profile',
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(Icons.settings),
+          label: 'Settings',
+        ),
+      ],
+      currentIndex: _selectedIndex,
+      onTap: _onItemTapped,
+    );
+  }
 }

lib/sell.dart

@@ -0,0 +1,18 @@
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:flutter/material.dart';
+import 'package:ruswipeshare/home.dart';
+import 'package:ruswipeshare/main.dart';
+
+class SellScreen extends StatelessWidget {
+  const SellScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+        child: const Text("Hi"),
+      ),
+      bottomNavigationBar: MyNavBar(),
+    );
+  }
+}