This is a example source code for infinite pageview in flutter. Read the tutorial here: https://slcoderlk.blogspot.com/2018/05/motiv-quote-app-pageview-for-swipe.html

infinite_pageview.dart

import 'package:flutter/material.dart';

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

class LimeApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Lime',
      theme: ThemeData(
        canvasColor: Colors.primaries[6],
      ),
      home: MainPage(),
    );
  }
}

class MainPage extends StatelessWidget {
  List<Widget> pages = [YourPage(), YourSecondPage(), YourThirdPage()];
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        decoration: BoxDecoration(
          color: Colors.black54,
        ),
        margin: EdgeInsets.symmetric(
          vertical: 50.0,
          horizontal: 10.0,
        ),
        child: PageView.builder(
          controller: PageController(
            initialPage: 1,
            viewportFraction: 0.8,
          ),
          itemBuilder: (_, int index) => pages[index];
        ),
      ),
    );
  }
}