【 Flutter 】Flutter を 基礎 から 学習 ( ウィジェット編 ) part88 Scrolling

import 'dart:math' as math;

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(new MaterialApp(home: new MyApp()));
}

class MyApp extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _State();
  }
}

class _State extends State<MyApp> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: Scaffold(
      appBar: AppBar(
        title: Text('テスト中です。'),
      ),
      body: PageView(
        children: <Widget>[
          box("1"),
          box("2"),
          box("3"),
        ],
      ),
    ));
  }

  Container box(String text) {
    return Container(
      alignment: Alignment.center,
      width: 100,
      height: 200,
      color: Color((math.Random().nextDouble() * 0xFFFFFF).toInt())
          .withOpacity(1.0),
      child: Text(text),
    );
  }
}