page view flutter

import 'package:flutter/material.dart';

class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  int position = 0;

  PageController pageController = PageController(initialPage: 0);

  navigateToPage(int index) {
    setState(() {
      position = index;
    });

    pageController.animateToPage(position,
        duration: Duration(seconds: 1), curve: Curves.bounceIn);
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("PageView"),
      ),
      body: PageView(
        controller: pageController,
        onPageChanged: (index) {
          navigateToPage(index);
        },
        children: [
          Container(
            child: Center(child: Text("Home")),
          ),
          Container(
            child: Center(child: Text("Profile")),
          ),
          Container(
            child: Center(child: Text("Feed")),
          ),
          Container(
            child: Center(child: Text("Notifications")),
          ),
          Container(
            child: Center(child: Text("Settings")),
          ),
        ],
      ),
      bottomNavigationBar: BottomNavigationBar(
          fixedColor: Colors.red,
          unselectedItemColor: Colors.black,
          type: BottomNavigationBarType.fixed,
          currentIndex: position,
          onTap: (index) {
            navigateToPage(index);
          },
          items: [
            BottomNavigationBarItem(icon: Icon(Icons.home), label: "Home"),
            BottomNavigationBarItem(
                icon: Icon(Icons.verified_user), label: "Profile"),
            BottomNavigationBarItem(icon: Icon(Icons.feedback), label: "Feed"),
            BottomNavigationBarItem(
                icon: Icon(Icons.notifications), label: "Notifications"),
            BottomNavigationBarItem(
                icon: Icon(Icons.settings), label: "Settings"),
          ]),
    );
  }
}