FEAT : Added Bottom Navigation bar

lib/home.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/material.dart';
+class Home extends StatelessWidget {
+
+  const Home({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Home Screen'),
+      ),
+      body: Center(
+        child: Text('Welcome to the Home Screen!'),
+      ),
+    );
+  }
+}

lib/screens/login_screen.dart

@@ -1,10 +1,21 @@
+import 'package:firebase_auth/firebase_auth.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:nommetric/home.dart';
 import 'package:nommetric/screens/register_screen.dart';
 
-class LoginScreen extends StatelessWidget {
+class LoginScreen extends StatefulWidget {
   const LoginScreen({super.key});
 
+  @override
+  State<LoginScreen> createState() => _LoginScreenState();
+}
+
+class _LoginScreenState extends State<LoginScreen> {
+
+  final emailController = TextEditingController();
+  final passwordController = TextEditingController();
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -47,6 +58,7 @@ class LoginScreen extends StatelessWidget {
                     ),
                     SizedBox(height: 8.0),
                     TextField(
+                      controller: emailController,
                       decoration: InputDecoration(
                         hintText: "[email protected]",
                         hintStyle: TextStyle(fontWeight: FontWeight.w400),
@@ -66,6 +78,7 @@ class LoginScreen extends StatelessWidget {
                     ),
                     SizedBox(height: 8.0),
                     TextField(
+                      controller: passwordController,
                       decoration: InputDecoration(
                         hintText: "Enter your password",
                         hintStyle: TextStyle(fontWeight: FontWeight.w400),
@@ -80,12 +93,22 @@ class LoginScreen extends StatelessWidget {
                 ),
                 SizedBox(height: 32.0),
                 ElevatedButton(
-                  onPressed: () {
-                    // Go to home placeholder
-                    Navigator.push(
-                      context, 
-                      MaterialPageRoute(builder:  (context) => Placeholder())
-                    );
+                  onPressed: () async{
+                    try {
+                      await FirebaseAuth.instance.signInWithEmailAndPassword(
+                        email: emailController.text.trim(),
+                        password: passwordController.text.trim(),
+                      );
+
+                      Navigator.pushReplacement(
+                        context,
+                        MaterialPageRoute(builder: (_) => Home()),
+                      );
+                    } catch (e) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(content: Text("Invalid credentials")),
+                      );
+                    }
                   },
                   style: ElevatedButton.styleFrom(
                     foregroundColor: Colors.white,

lib/screens/register_screen.dart

@@ -1,10 +1,21 @@
+import 'package:firebase_auth/firebase_auth.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:nommetric/screens/login_screen.dart';
 
-class RegisterScreen extends StatelessWidget {
+class RegisterScreen extends StatefulWidget {
   const RegisterScreen({super.key});
 
+  @override
+  State<RegisterScreen> createState() => _RegisterScreenState();
+}
+
+class _RegisterScreenState extends State<RegisterScreen> {
+
+  final emailController = TextEditingController();
+  final passwordController = TextEditingController();
+  final confirmPasswordController = TextEditingController();
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -53,6 +64,7 @@ class RegisterScreen extends StatelessWidget {
                 SizedBox(height: 15.0),
                 // Email TextField
                 TextField(
+                  controller: emailController,
                   decoration: InputDecoration(
                     labelText: "Enter Your Email / Roll no.",
                     hintText: "[email protected]",
@@ -63,6 +75,7 @@ class RegisterScreen extends StatelessWidget {
                 SizedBox(height: 15.0),
                 // Password TextField
                 TextField(
+                  controller: passwordController,
                   decoration: InputDecoration(
                     labelText: "Enter Your Password",
                     suffix: Icon(CupertinoIcons.eye_solid),
@@ -74,6 +87,7 @@ class RegisterScreen extends StatelessWidget {
                 SizedBox(height: 15.0),
                 // Confirm Password TextField
                 TextField(
+                  controller: confirmPasswordController,
                   decoration: InputDecoration(
                     labelText: "Confirm Password",
                     suffix: Icon(CupertinoIcons.eye_solid),
@@ -85,9 +99,28 @@ class RegisterScreen extends StatelessWidget {
                 SizedBox(height: 20.0),
                 // Sign Up Button
                 ElevatedButton(
-                  onPressed: () {
-                    // Navigator.push(context,
-                    //     MaterialPageRoute(builder: (context) => HomePage()));
+                  onPressed: () async{
+                    if(passwordController.text != confirmPasswordController.text){
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(content: Text("Passwords do not match")),
+                      );
+                      return;
+                    }
+
+                    try {
+                      await FirebaseAuth.instance.createUserWithEmailAndPassword(
+                        email: emailController.text.trim(),
+                        password: passwordController.text.trim()
+                      );
+                      Navigator.pushReplacement(
+                        context, 
+                        MaterialPageRoute(builder:  (context) => LoginScreen())
+                      );
+                    } catch (e) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(content: Text(e.toString())),
+                      );
+                    }
                   },
                   style: ElevatedButton.styleFrom(
                     foregroundColor: Colors.white,

lib/widgets/bottomNav_hasan.dart

@@ -0,0 +1,89 @@
+import 'package:flutter/material.dart';
+
+class BottomNavHasan extends StatefulWidget {
+  const BottomNavHasan({super.key});
+
+  @override
+  State<BottomNavHasan> createState() => _BottomNavHasanState();
+}
+
+class _BottomNavHasanState extends State<BottomNavHasan> {
+  int _currentIndex = 0;
+
+  final List<Widget> _screens = const [
+    _HomePlaceholder(),
+    _MenuPlaceholder(),
+    _ProfilePlaceholder(),
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: _screens[_currentIndex],
+      bottomNavigationBar: BottomNavigationBar(
+        currentIndex: _currentIndex,
+        onTap: (index) {
+          setState(() {
+            _currentIndex = index;
+          });
+        },
+        items: const [
+          BottomNavigationBarItem(
+            icon: Icon(Icons.home_outlined),
+            label: "Home",
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.menu_outlined),
+            label: "Menu",
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.person_outline),
+            label: "Profile",
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _HomePlaceholder extends StatelessWidget {
+  const _HomePlaceholder();
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Text(
+        "Home Screen",
+        style: TextStyle(fontSize: 22, fontWeight: FontWeight.w600),
+      ),
+    );
+  }
+}
+
+class _MenuPlaceholder extends StatelessWidget {
+  const _MenuPlaceholder();
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Text(
+        "Menu Screen",
+        style: TextStyle(fontSize: 22, fontWeight: FontWeight.w600),
+      ),
+    );
+  }
+}
+
+class _ProfilePlaceholder extends StatelessWidget {
+  const _ProfilePlaceholder();
+
+  @override
+  Widget build(BuildContext context) {
+    return const Center(
+      child: Text(
+        "Profile Screen",
+        style: TextStyle(fontSize: 22, fontWeight: FontWeight.w600),
+      ),
+    );
+  }
+}

pubspec.yaml

@@ -41,6 +41,7 @@ dependencies:
   # Firebase
   firebase_core: ^3.0.0
   cloud_firestore: ^5.0.0
+  firebase_auth: ^5.7.0
 
 dev_dependencies:
   flutter_test: