How To Create Pageview Widget Swipeable View In Flutter

flutter: 
  assets: 
   - assets/images/

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
        home:  Scaffold(
            body: Stack(
              children: [
                SafeArea(child:Page(),),
                Column(
                  children: [
                    Padding(
                      padding: EdgeInsets.symmetric(horizontal: 0, vertical: 0),
                      child:  Positioned(
                        child: AppBar(
                          leading: Icon(Icons.chevron_left),
                          title: Text("PageView Widget"),
                          backgroundColor: Colors.transparent,
                          elevation: 0,
                        ),
                      )
                    ),
                  ],
                )
              ],
            )
        ),
    );
  }
}

class Page extends StatefulWidget {
  PageState createState() => PageState();
}

class PageState extends State<Page>{

  final controller = PageController(
    initialPage: 0,
  );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Center(child:
          PageView(
            controller: controller,
            onPageChanged: (page)=>{ print(page.toString()) },
            pageSnapping: true,
            scrollDirection: Axis.vertical,
            children: <Widget>[
              Container(
                decoration: BoxDecoration(
                  image: DecorationImage(
                    image: AssetImage('assets/images/1.jpg'),
                    fit: BoxFit.cover,
                  ),
                ),
                child: Center(
                  child: Text(
                    'BajarangiSoft.com',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 30,
                    ),
                  ),
                ),
              ),
              Container(
                decoration: BoxDecoration(
                  image: DecorationImage(
                    image: AssetImage('assets/images/2.jpg'),
                    fit: BoxFit.cover,
                  ),
                ),
                child: Center(
                  child: Text(
                    'BajarangiSoft.com',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 30,
                    ),
                  ),
                ),
              ),
              Container(
                decoration: BoxDecoration(
                  image: DecorationImage(
                    image: AssetImage('assets/images/3.jpg'),
                    fit: BoxFit.cover,
                  ),
                ),
                child: Center(
                  child: Text(
                    'BajarangiSoft.com',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 30,
                    ),
                  ),
                ),
              ),
          ],
        ),

        )
    );
  }
}