pageview_bugg.dart

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Material App',
      home: Home(),
    );
  }
}

class Home extends StatefulWidget {
  const Home({
    Key? key,
  }) : super(key: key);

  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  final pageController = PageController();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Material App Bar'),
      ),
      bottomNavigationBar: ElevatedButton(
        onPressed: () {
          
          /*
          pageController.animateToPage(
            (pageController.page! + 1).round(),
            duration: const Duration(milliseconds: 500),
            curve: Curves.easeInOut,
          );
          */
          pageController.animateTo(
            pageController.page! + 1,
            duration: const Duration(milliseconds: 500),
            curve: Curves.easeInOut,
          );
        },
        child: Icon(Icons.skip_next),
      ),
      body: PageView.builder(
        controller: pageController,
        itemBuilder: (context, index) => Center(
          child: Text('Item $index'),
        ),
      ),
    );
  }
}