import 'package:flutter/material.dart';

import 'home_page.dart';

class BottomBar extends StatefulWidget {
  const BottomBar({super.key});

  @override
  State<BottomBar> createState() => _BottomBarState();
}

class _BottomBarState extends State<BottomBar> {
  int _selectedIndex = 0;

  // List of widget screens to be displayed based on the selected index
  static const List<Widget> _widgetOptions = <Widget>[
    HomePage(),
    Text('Search Screen'),
    Text('Profile Screen'),
  ];

  void _onItemTapped(int index) {
    setState(() {
      _selectedIndex = index;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: _widgetOptions.elementAt(_selectedIndex),
      ),
      bottomNavigationBar: BottomNavigationBar(
        items: const <BottomNavigationBarItem>[
          BottomNavigationBarItem(
            icon: Icon(Icons.home),
            label: 'Home',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.search),
            label: 'Search',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.account_circle),
            label: 'Profile',
          ),
        ],
        currentIndex: _selectedIndex,
        onTap: _onItemTapped,
      ),
    );
  }
}


HOme PAge


import 'package:flutter/material.dart';

class HomePage extends StatelessWidget {
  const HomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("HOME PAGE"),
      ),
      body: const Column(
        children: [
          Text("Sdasds"),
          Text("Sdasds"),
          Text("Sdasds"),
          Text("Sdasds"),
          Text("Sdasds"),
        ],
      ),
    );
  }
}


  Main FIle COde



import 'package:flutter/material.dart';

import 'pages/bottom_bar.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        // Created By Yaqoob Developer,
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const BottomBar(),
    );
  }
}