Flutter_PageView

mail.dart

// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.indigo,
      ),
      home: MyHomePage(title: 'App Header'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  final String title;
  MyHomePage({Key? key, required this.title}) : super(key: key);

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

class _MyHomePageState extends State<MyHomePage> {
  final PageController controller = PageController(initialPage: 0);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: PageView(
        scrollDirection: Axis.vertical,
        controller: controller,
        pageSnapping: false,
        children: <Widget>[
          Container(
            child: Center(child: Text('First Page')),
            color: Colors.pink.shade200,
          ),
          Container(
            child: Center(child: Text('Second Page')),
            color: Colors.yellow,
          ),
          Column(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            children: [
              Flexible(
                flex: 5,
                child: Container(
                  child: Center(child: Text('Third Page')),
                  color: Colors.greenAccent,
                ),
              ),
              Flexible(
                flex: 1,
                child: Container(
                  child: Center(child: Text('App Footer')),
                  color: Colors.grey.shade400,
                ),
              ),
            ],
          ),
        ],
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {},
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}