pencilmethod | Flutter development app

name: pencilmethod
description: "Pencil method"
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev

# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.0.0+1

environment:
  sdk: '>=3.3.0-152.0.dev <4.0.0'

# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies:
  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^1.0.6
  package_info_plus: ^5.0.1
  shared_preferences: ^2.0.17
  flutter_localizations:    #多言語ライブラリの本体    # .arbファイルを更新したら flutter gen-l10n
    sdk: flutter
  intl: ^0.18.1     #多言語やフォーマッタなどの関連ライブラリ
  google_mobile_ads: ^3.1.0
  just_audio: ^0.9.35

dev_dependencies:
  flutter_test:
    sdk: flutter

  flutter_launcher_icons: ^0.13.1    #flutter pub run flutter_launcher_icons
  flutter_native_splash: ^2.3.6     #flutter pub run flutter_native_splash:create

  # The "flutter_lints" package below contains a set of recommended lints to
  # encourage good coding practices. The lint set provided by the package is
  # activated in the `analysis_options.yaml` file located at the root of your
  # package. See that file for information about deactivating specific lint
  # rules and activating additional ones.
  flutter_lints: ^3.0.1

# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec

flutter_launcher_icons:
  android: "launcher_icon"
  ios: true
  image_path: "assets/icon/icon.png"
  adaptive_icon_background: "assets/icon/icon_back.png"
  adaptive_icon_foreground: "assets/icon/icon_fore.png"

flutter_native_splash:
  color: '#ffcc00'
  image: 'assets/image/splash.png'
  color_dark: '#ffcc00'
  image_dark: 'assets/image/splash.png'
  fullscreen: true
  android_12:
    icon_background_color: '#ffcc00'
    image: 'assets/image/splash.png'
    icon_background_color_dark: '#ffcc00'
    image_dark: 'assets/image/splash.png'

# The following section is specific to Flutter packages.
flutter:
  generate: true    #自動生成フラグの有効化

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  # assets:
  #   - images/a_dot_burr.jpeg
  #   - images/a_dot_ham.jpeg
  assets:
    - assets/image/
    - assets/image/pencil/
    - assets/sound/

  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.dev/assets-and-images/#resolution-aware

  # For details regarding adding assets from package dependencies, see
  # https://flutter.dev/assets-and-images/#from-packages

  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.dev/custom-fonts/#from-packages

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-02-06
///
library;

import 'package:flutter/material.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'dart:io';

class AdMob {
  late BannerAd _adMobBanner;
  bool _isAdMob = false;
  AdMob() { //constructor
    String adBannerUnitId = '';
    if (!kIsWeb && Platform.isAndroid) {
      //adBannerUnitId = 'ca-app-pub-3940256099942544/6300978111';  //test
      adBannerUnitId = 'ca-app-pub-0000000000000000/0000000000';
      _isAdMob = true;
    } else if (!kIsWeb && Platform.isIOS) {
      //adBannerUnitId = 'ca-app-pub-3940256099942544/6300978111';  //test
      adBannerUnitId = 'ca-app-pub-0000000000000000/0000000000';
      _isAdMob = true;
    }
    if (_isAdMob) {
      _adMobBanner = BannerAd(
        adUnitId: adBannerUnitId,
        size: AdSize.banner,
        request: const AdRequest(),
        listener: const BannerAdListener(),
      );
    }
  }
  void load() {
    if (_isAdMob) {
      _adMobBanner.load();
    }
  }
  void dispose() {
    if (_isAdMob) {
      _adMobBanner.dispose();
    }
  }
  Widget getAdBannerWidget() {
    if (_isAdMob) {
      return Container(
        alignment: Alignment.center,
        width: _adMobBanner.size.width.toDouble(),
        height: _adMobBanner.size.height.toDouble(),
        child: AdWidget(ad: _adMobBanner),
      );
    } else {
      return Container();
    }
  }
  double getAdBannerHeight() {
    if (_isAdMob) {
      return _adMobBanner.size.height.toDouble();
    } else {
      return 150;  //for web
    }
  }
}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-01-27
///
library;

import 'package:just_audio/just_audio.dart';

import 'package:pencilmethod/const_value.dart';

class AudioPlay {
  //音を重ねて連続再生できるようにインスタンスを用意しておき、順繰りに使う。
  static final List<AudioPlayer> _player01 = [
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),
  ];
  static final List<AudioPlayer> _player02 = [
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),
  ];
  int _player01Ptr = 0;
  int _player02Ptr = 0;

  double _soundVolume01 = 0.0;
  double _soundVolume02 = 0.0;

  //constructor
  AudioPlay() {
    constructor();
  }
  void constructor() async {
    for (int i = 0; i < _player01.length; i++) {
      await _player01[i].setVolume(0);
      await _player01[i].setAsset(ConstValue.audioReady);
    }
    for (int i = 0; i < _player02.length; i++) {
      await _player02[i].setVolume(0);
      await _player02[i].setAsset(ConstValue.audioAction);
    }
    playZero();
  }
  void dispose() {
    for (int i = 0; i < _player01.length; i++) {
      _player01[i].dispose();
    }
    for (int i = 0; i < _player02.length; i++) {
      _player02[i].dispose();
    }
  }
  //getter
  double get soundVolume01 {
    return _soundVolume01;
  }
  double get soundVolume02 {
    return _soundVolume02;
  }
  //setter
  set soundVolume01(double vol) {
    _soundVolume01 = vol;
  }
  set soundVolume02(double vol) {
    _soundVolume02 = vol;
  }
  //最初に音が鳴らないのを回避する方法
  void playZero() async {
    AudioPlayer ap = AudioPlayer();
    await ap.setAsset(ConstValue.audioZero);
    await ap.load();
    await ap.play();
  }
  //
  void play01() async {
    if (_soundVolume01 == 0) {
      return;
    }
    _player01Ptr += 1;
    if (_player01Ptr >= _player01.length) {
      _player01Ptr = 0;
    }
    await _player01[_player01Ptr].setVolume(_soundVolume01);
    await _player01[_player01Ptr].pause();
    await _player01[_player01Ptr].seek(const Duration(milliseconds: 100));
    await _player01[_player01Ptr].play();
  }
  //
  void play02() async {
    if (_soundVolume02 == 0) {
      return;
    }
    _player02Ptr += 1;
    if (_player02Ptr >= _player02.length) {
      _player02Ptr = 0;
    }
    await _player02[_player02Ptr].setVolume(_soundVolume02);
    await _player02[_player02Ptr].pause();
    await _player02[_player02Ptr].seek(Duration.zero);
    await _player02[_player02Ptr].play();
  }
}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-10-15
///
library;

import 'package:flutter/material.dart';

class ConstValue {
  //pref
  static const String prefLanguageCode = 'languageCode';
  static const String prefCandidateText = 'candidateText';
  static const String prefCountdownTime = 'countdownTime';
  static const String prefSoundReadyVolume = 'soundReadyVolume';
  static const String prefSoundStartVolume = 'soundStartVolume';
  //
  static const String candidateTextDefault = 'oxygen\nhydrogen\nnitrogen\nchlorine\ncarbon\ntar';
  //color
  static const Color colorHeader = Color.fromRGBO(255,0,0,0.1);
  static const Color colorHeaderOn = Color.fromRGBO(255,255,255,0.3);
  static const Color colorNote = Color.fromRGBO(255,0,0,0.4);
  static const Color colorBack = Color.fromRGBO(255,204,0,1);
  static const Color colorSettingHeader = Color.fromRGBO(255,204,0,1);
  static const Color colorUiActiveColor = Color.fromRGBO(255,204,0,1);
  static const Color colorUiInactiveColor = Colors.black26;
  //sound
  static const String audioZero = 'assets/sound/zero.wav';    //無音1秒
  static const String audioReady = 'assets/sound/switch.wav';
  static const String audioAction = 'assets/sound/slide.wav';
  //image
  static const String imageBack = 'assets/image/back.png';
  static const List<String> imagePencils = [
    'assets/image/pencil/pencil001.webp',
    'assets/image/pencil/pencil002.webp',
    'assets/image/pencil/pencil003.webp',
    'assets/image/pencil/pencil004.webp',
    'assets/image/pencil/pencil005.webp',
    'assets/image/pencil/pencil006.webp',
    'assets/image/pencil/pencil007.webp',
    'assets/image/pencil/pencil008.webp',
    'assets/image/pencil/pencil009.webp',
    'assets/image/pencil/pencil010.webp',
    'assets/image/pencil/pencil011.webp',
    'assets/image/pencil/pencil012.webp',
    'assets/image/pencil/pencil013.webp',
    'assets/image/pencil/pencil014.webp',
    'assets/image/pencil/pencil015.webp',
    'assets/image/pencil/pencil016.webp',
    'assets/image/pencil/pencil017.webp',
    'assets/image/pencil/pencil018.webp',
    'assets/image/pencil/pencil019.webp',
    'assets/image/pencil/pencil020.webp',
    'assets/image/pencil/pencil021.webp',
    'assets/image/pencil/pencil022.webp',
    'assets/image/pencil/pencil023.webp',
    'assets/image/pencil/pencil024.webp',
    'assets/image/pencil/pencil025.webp',
    'assets/image/pencil/pencil026.webp',
    'assets/image/pencil/pencil027.webp',
    'assets/image/pencil/pencil028.webp',
    'assets/image/pencil/pencil029.webp',
    'assets/image/pencil/pencil030.webp',
    'assets/image/pencil/pencil031.webp',
    'assets/image/pencil/pencil032.webp',
    'assets/image/pencil/pencil033.webp',
    'assets/image/pencil/pencil034.webp',
    'assets/image/pencil/pencil035.webp',
    'assets/image/pencil/pencil036.webp',
    'assets/image/pencil/pencil037.webp',
    'assets/image/pencil/pencil038.webp',
    'assets/image/pencil/pencil039.webp',
    'assets/image/pencil/pencil040.webp',
    'assets/image/pencil/pencil041.webp',
    'assets/image/pencil/pencil042.webp',
    'assets/image/pencil/pencil043.webp',
    'assets/image/pencil/pencil044.webp',
    'assets/image/pencil/pencil045.webp',
    'assets/image/pencil/pencil046.webp',
    'assets/image/pencil/pencil047.webp',
    'assets/image/pencil/pencil048.webp',
    'assets/image/pencil/pencil049.webp',
    'assets/image/pencil/pencil050.webp',
    'assets/image/pencil/pencil051.webp',
    'assets/image/pencil/pencil052.webp',
    'assets/image/pencil/pencil053.webp',
    'assets/image/pencil/pencil054.webp',
    'assets/image/pencil/pencil055.webp',
    'assets/image/pencil/pencil056.webp',
    'assets/image/pencil/pencil057.webp',
    'assets/image/pencil/pencil058.webp',
    'assets/image/pencil/pencil059.webp',
    'assets/image/pencil/pencil060.webp',
  ];
  static const List<String> imageNumbers = [
    'assets/image/number_null.webp',
    'assets/image/number1.webp',
    'assets/image/number2.webp',
    'assets/image/number3.webp',
    'assets/image/number4.webp',
    'assets/image/number5.webp',
    'assets/image/number6.webp',
    'assets/image/number7.webp',
    'assets/image/number8.webp',
    'assets/image/number9.webp',
  ];
  //string
  static const Map<String,String> languageCode = {
    'en': 'English',
    'bg': 'български език',
    'cs': 'Čeština',
    'da': 'dansk',
    'de': 'Deutsch',
    'el': 'Ελληνικά',
    'es': 'Español',
    'et': 'eesti keel',
    'fi': 'Suomen kieli',
    'fr': 'Français',
    'hu': 'magyar nyelv',
    'it': 'Italiano',
    'ja': '日本語',
    'lt': 'lietuvių kalba',
    'lv': 'Latviešu',
    'nl': 'Nederlands',
    'pl': 'Polski',
    'pt': 'Português',
    'ro': 'limba română',
    'ru': 'русский',
    'sk': 'Slovenčina',
    'sv': 'svenska',
    'th': 'ภาษาไทย',
    'zh': '中文',
  };

}

/// Copyright© ao-system, Inc.

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-01-27
///
library;

import 'package:pencilmethod/preferences.dart';

class LanguageState {

  static String _languageCode = 'en';

  //言語コードを記録
  static Future<void> setLanguageCode(String str) async {
    _languageCode = str;
    await Preferences.setLanguageCode(_languageCode);
  }
  //言語コードを返す
  static Future<String> getLanguageCode() async {
    _languageCode = await Preferences.getLanguageCode() ?? 'en';
    return _languageCode;
  }

}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-10-02
///
library;

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart' if (dart.library.html) 'empty.dart';
import 'package:flutter/foundation.dart' show kIsWeb;

//自身で作成したclassを読み込む
import 'package:pencilmethod/const_value.dart';
import 'package:pencilmethod/language_state.dart';
import 'package:pencilmethod/version_state.dart';
import 'package:pencilmethod/setting.dart';
import 'package:pencilmethod/ad_mob.dart';
import 'package:pencilmethod/page_state.dart';
import 'package:pencilmethod/preferences.dart';
import 'package:pencilmethod/audio_play.dart';

void main() {
  runApp(const MainApp());
}

class MainApp extends StatefulWidget {    //statefulに変更して言語変更に対応
  const MainApp({super.key});
  @override
  State<MainApp> createState() => _MainAppState();
}

class _MainAppState extends State<MainApp> {
  Locale localeLanguage = const Locale('en');
  @override
  Widget build(BuildContext context) {
    if (kIsWeb == false) {
      MobileAds.instance.initialize();
    }
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      localizationsDelegates: AppLocalizations.localizationsDelegates,   //多言語化
      supportedLocales: AppLocalizations.supportedLocales,  //自動で言語リストを生成
      locale: localeLanguage,
      home: const MainHomePage(),
    );
  }
}

class MainHomePage extends StatefulWidget {
  const MainHomePage({super.key});
  @override
  State<MainHomePage> createState() => _MainHomePageState();
}

class _MainHomePageState extends State<MainHomePage> with SingleTickerProviderStateMixin {
  final GlobalKey _aspectRatioKey = GlobalKey();  //_textAreaのサイズ取得用
  final AdMob _adMob = AdMob(); //広告表示
  final AudioPlay _audioPlay = AudioPlay(); //効果音
  bool _busyFlag = false; //動作中
  int _tickNumber = 0;  //0～119で画像と結果表示を切り替え
  String _lotteryText = ''; //結果 e.g. 'はずれ'
  late Timer _timer;  //カウントダウンと画像切り替えで使用
  //countdown
  int _countdownSubtraction = 0;  //_countdownTimeが代入されて実際にカウントダウンされる
  String _imageCountdownNumber = ConstValue.imageNumbers[0];  //カウントダウン画像
  double _countdownScale = 3;   //カウントダウン画像の拡大率
  double _countdownOpacity = 0; //カウントダウン画像の非透明度
  int _timerCount = 30; //Timerで処理される1秒間の数
  //text animation
  late AnimationController _textAnimationController;
  late Animation<double> _textAnimation;
  //

  //アプリのバージョン取得
  void _getVersion() async {
    PackageInfo packageInfo = await PackageInfo.fromPlatform();
    setState(() {
      VersionState.versionSave(packageInfo.version);
    });
  }
  //言語準備
  void _getCurrentLocale() async {
    Locale locale = Locale(await LanguageState.getLanguageCode());
    if (mounted) {  //Widgetが存在する。Widgetが存在しない時の実行によるエラーを回避する為。
      context.findAncestorStateOfType<_MainAppState>()!
        ..localeLanguage = locale
        ..setState(() {});
    }
  }
  //ページ起動開始時に一度だけ呼ばれる
  @override
  void initState() {
    super.initState();
    _getVersion();
    _getCurrentLocale();
    LanguageState.getLanguageCode();
    _adMob.load();
    _audioPlay.playZero();
    //text animation
    _textAnimationController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 500),
    );
    _textAnimation = Tween<double>(begin: 0.0,end: 1.0).animate(_textAnimationController);
    //
    (() async {
      await Preferences.initial();
      _audioPlay.soundVolume01 = Preferences.soundReadyVolume;
      _audioPlay.soundVolume02 = Preferences.soundStartVolume;
      setState(() {});
    })();
  }
  //ページ終了時に一度だけ呼ばれる
  @override
  void dispose() {
    PageState.setCurrentPage('');
    _adMob.dispose();
    _timer.cancel();
    _textAnimationController.dispose();
    super.dispose();
  }
  //画面全体
  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: _decoration(),
      child: GestureDetector(
        onTap: () {
          _onClickStart();
        },
        child: Scaffold(
          backgroundColor: Colors.transparent,
          appBar: AppBar(
            backgroundColor: _busyFlag ? ConstValue.colorHeaderOn : ConstValue.colorHeader,
            //タイトル表示
            title: const Text('Pencil method',
              style: TextStyle(
                color: Colors.white,
                fontSize: 15.0,
              )
            ),
            //設定ボタン
            actions: <Widget>[
              Opacity(
                opacity: _busyFlag ? 0.1 : 1,
                child: TextButton(
                  onPressed: () async {
                    if (_busyFlag) {
                      return;
                    }
                    bool? ret = await Navigator.of(context).push(
                      MaterialPageRoute<bool>(builder:(context) => const SettingPage()),
                    );
                    //awaitで呼び出しているので、settingから戻ったら以下が実行される。
                    if (ret!) { //設定で適用だった場合
                      _getCurrentLocale();
                      _audioPlay.soundVolume01 = Preferences.soundReadyVolume;
                      _audioPlay.soundVolume02 = Preferences.soundStartVolume;
                      setState(() {});
                    }
                  },
                  child: Text(
                    AppLocalizations.of(context)!.setting,
                    style: const TextStyle(
                      color: Colors.white,
                    )
                  )
                )
              )
            ]
          ),
          body: SafeArea(
            child: Column(children:[
              Expanded(
                child: Stack(children:[
                  Center(
                    child: _pencilArea(),
                  ),
                  Center(
                    child: _preTextArea(),
                  ),
                  Center(
                    child: _textArea(),
                  ),
                  Center(
                    child: Opacity(
                      opacity: _countdownOpacity,
                      child: Transform.scale(
                        scale: _countdownScale,
                        child: Image.asset(
                          _imageCountdownNumber,
                        ),
                      )
                    )
                  ),
                  SizedBox(
                    width: double.infinity,
                    child: Text(AppLocalizations.of(context)!.start,
                      textAlign: TextAlign.center,
                      style: const TextStyle(
                        color: ConstValue.colorNote,
                      )
                    )
                  )
                ])
              ),
              //広告
              Padding(
                padding: const EdgeInsets.only(top: 10, left: 0, right: 0, bottom: 0),
                child: SizedBox(
                  width: double.infinity,
                  child: _adMob.getAdBannerWidget(),
                )
              )
            ])
          )
        )
      )
    );
  }
  Decoration _decoration() {
    return const BoxDecoration(
      //colorは起動時に真黒な画面にならないようにする為
      color: ConstValue.colorSettingHeader,
      image: DecorationImage(
        image: AssetImage(ConstValue.imageBack),
        fit: BoxFit.cover,
      ),
    );
  }
  //カウントダウンタイマー
  void _timerStart() {
    _timer = Timer.periodic(const Duration(milliseconds: (1000 ~/ 30)), (timer) {
      setState(() {
        _countdown();
      });
    });
  }
  //START
  void _onClickStart() {
    if (_busyFlag) {
      return;
    }
    if (_tickNumber != 0) {
      setState(() {
        _tickNumber = 0;
        _lotteryText = '';
      });
      return;
    }
    _busyFlag = true;
    _countdownSubtraction = Preferences.countdownTime;
    if (_countdownSubtraction == 0) { //カウントダウンしない場合
      _tickAction();
    } else {
      _audioPlay.soundVolume01 = Preferences.soundReadyVolume;
      _audioPlay.play01();
      _tickNumber = 0;
      _timerStart();
    }
  }
  //0～59まで変化。画像と結果表示を切り替え
  void _tickAction() {
    _audioPlay.soundVolume02 = Preferences.soundStartVolume;
    _audioPlay.play02();
    _tickNumber = 0;
    _lotteryText = '';
    _textAnimationController.reset();
    _timer = Timer.periodic(const Duration(milliseconds: (1000 ~/ 30)), (timer) {
      setState(() {
        _tickNumber += 1;
        if (_tickNumber >= 59) {
          _timer.cancel();
          _lotteryText = Preferences.nextCandidateText();
          _textAnimationController.forward();
          _busyFlag = false;
        }
      });
    });
  }
  //Timerで定期実行
  void _countdown() {
    //カウントダウン終了時
    if (_countdownSubtraction == 0) {
      return;
    }
    //数字画像を切り替え
    if (_timerCount == 30) {
      _imageCountdownNumber = ConstValue.imageNumbers[_countdownSubtraction];
    }
    _timerCount -= 1;
    if (_timerCount <= 0) {
      _timerCount = 30;
      _countdownSubtraction -= 1;
      if (_countdownSubtraction == 0) {
        _imageCountdownNumber = ConstValue.imageNumbers[0];
        _timer.cancel();
        _tickAction();
      }
    }
    _countdownScale = 1 + (0.1 * (_timerCount / 30));
    if (_timerCount >= 20) {
      _countdownOpacity = (30 - _timerCount) / 10;
    } else if (_timerCount <= 5) {
      _countdownOpacity = _timerCount / 5;
    } else {
      _countdownOpacity = 1;
    }
  }
  //pencil画像
  Widget _pencilArea() {
    List<Widget> widgets = [];
    for (int i = 0; i < ConstValue.imagePencils.length; i++) {
      widgets.add(
        Opacity(
          opacity: _tickNumber == i ? 1 : 0,
          child: Image.asset(ConstValue.imagePencils[i]),
        ),
      );
    }
    return Stack(children:widgets);
  }
  //_textAreaのサイズ取得用
  Widget _preTextArea() {
    return AspectRatio(
      key: _aspectRatioKey,
      aspectRatio: 1,
    );
  }
  //結果文字表示
  Widget _textArea() {
    late Size size;
    try {
      RenderBox renderBox = _aspectRatioKey.currentContext?.findRenderObject() as RenderBox;
      size = renderBox.size;
    } catch (_) {
      return Container();
    }
    return AspectRatio(
      aspectRatio: 1,
      child: Container(
        alignment: Alignment.center,
        padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
        child: AnimatedBuilder(
          animation: _textAnimation,
          builder: (context, child) {
            return Opacity(
              opacity: _textAnimation.value,
              child: Text(_lotteryText,
                style: TextStyle(
                  color: Colors.white,
                  fontSize: size.width * 0.07,
                )
              )
            );
          }
        )
      )
    );
  }
}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-10-05
///
library;

//現在のページを記録。initStateでタイミングが合わない時にbuild内で一度だけ実行させるために使用。
class PageState {

  static String _currentPage = '';

  static void setCurrentPage(String str) {
    _currentPage = str;
  }

  static String getCurrentPage() {
    return _currentPage;
  }

}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-10-26
///
library;

import 'dart:math';

import 'package:shared_preferences/shared_preferences.dart';

import 'package:pencilmethod/const_value.dart';

//デバイスに情報を保存
class Preferences {

  static bool ready = false;
  //この値は常に最新にしておく
  static String _languageCode = '';
  static String _candidateText = '';
  static List<String> _candidateList = ['-','-','-','-','-','-'];
  static int _countdownTime = 0;
  static double _soundReadyVolume = 0.5;
  static double _soundStartVolume = 0.5;

  static String get languageCode {
    return _languageCode;
  }
  static String get candidateText {
    return _candidateText;
  }
  static List<String> get candidateList {
    return _candidateList;
  }
  static int get countdownTime {
    return _countdownTime;
  }
  static double get soundReadyVolume {
    return _soundReadyVolume;
  }
  static double get soundStartVolume {
    return _soundStartVolume;
  }

  static Future<void> initial() async {
    _languageCode = await getLanguageCode();
    _candidateText = await getCandidateText();
    _candidateList = getCandidateList();
    if (_candidateText == '') {
      await setCandidateText(''); //空文字で初期値をセット
    }
    _countdownTime = await getCountdownTime();
    _soundReadyVolume = await getSoundReadyVolume();
    _soundStartVolume = await getSoundStartVolume();
    ready = true;
  }

  //----------------------------

  //言語コード
  static Future<void> setLanguageCode(String str) async {
    _languageCode = str;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString(ConstValue.prefLanguageCode, str);
  }
  static Future<String> getLanguageCode() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final String str = prefs.getString(ConstValue.prefLanguageCode) ?? 'en';
    return str;
  }

  //----------------------------

  //抽選
  static Future<void> setCandidateText(String str) async {
    if (str == '') {
      str = ConstValue.candidateTextDefault;
    }
    _candidateText = str;
    _candidateList = _makeCandidateList(str);
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString(ConstValue.prefCandidateText, _candidateText);
  }
  static Future<void> setCandidateTextDefault() async {
    setCandidateText('');
  }
  static Future<String> getCandidateText() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final String str = prefs.getString(ConstValue.prefCandidateText) ?? ConstValue.candidateTextDefault;
    return str;
  }
  //抽選をListで返す
  static List<String> getCandidateList() {
    return _makeCandidateList(_candidateText);
  }
  //賞をListにする
  static List<String> _makeCandidateList(String str) {
    List<String> strList = ['-','-','-','-','-','-'];
    if (str == '') {
      return strList;
    }
    final List<String> lines = str.replaceAll('\r','').split('\n');
    for (int i = 0; i < min(6,lines.length); i++) {
      strList[i] = lines[i];
    }
    return strList;
  }
  //賞を1個取り出す
  static String nextCandidateText() {
    final List<int> numbers = [0,1,2,3,4,5];
    numbers.shuffle();
    return _candidateList[numbers[0]];
  }

  //----------------------------

  //カウントダウン時間
  static Future<void> setCountdownTime(int num) async {
    _countdownTime = num;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(ConstValue.prefCountdownTime, num);
  }
  static Future<int> getCountdownTime() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final int num = prefs.getInt(ConstValue.prefCountdownTime) ?? 0;
    return num;
  }

  //----------------------------

  //効果音音量
  static Future<void> setSoundReadyVolume(double num) async {
    _soundReadyVolume = num;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setDouble(ConstValue.prefSoundReadyVolume, num);
  }
  static Future<double> getSoundReadyVolume() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final double num = prefs.getDouble(ConstValue.prefSoundReadyVolume) ?? 0.5;
    return num;
  }

  //----------------------------

  //効果音音量
  static Future<void> setSoundStartVolume(double num) async {
    _soundStartVolume = num;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setDouble(ConstValue.prefSoundStartVolume, num);
  }
  static Future<double> getSoundStartVolume() async {
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    final double num = prefs.getDouble(ConstValue.prefSoundStartVolume) ?? 0.5;
    return num;
  }

//----------------------------

}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-10-15
///
library;

import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

import 'package:pencilmethod/const_value.dart';
import 'package:pencilmethod/preferences.dart';
import 'package:pencilmethod/language_state.dart';
import 'package:pencilmethod/version_state.dart';
import 'package:pencilmethod/ad_mob.dart';
import 'package:pencilmethod/page_state.dart';

class SettingPage extends StatefulWidget {
  const SettingPage({super.key});

  @override
  State<SettingPage> createState() => _SettingPageState();
}

class _SettingPageState extends State<SettingPage> {
  final AdMob _adMob = AdMob(); //広告
  //これら変数はUIへの表示や入力の為に一時的に使用される。
  String _languageKey = ''; //言語コード 'en'
  String _languageValue = '';
  final TextEditingController _controllerCandidateText = TextEditingController();
  bool _candidateInitialFlag = false;
  int _countdownTime = 0;
  double _soundReadyVolume = 0.5;
  double _soundStartVolume = 0.5;

  //ページ起動時に一度だけ実行される
  @override
  void initState() {
    super.initState();
    _adMob.load();
  }
  //ページ終了時に一度だけ実行される
  @override
  void dispose() {
    PageState.setCurrentPage('');
    _adMob.dispose();
    _controllerCandidateText.dispose();
    super.dispose();
  }
  //ページ描画
  @override
  Widget build(BuildContext context) {
    //このページが開いたときに一度だけ実行される処理を記述。initStateではタイミングが合わない為。
    if (PageState.getCurrentPage() != 'setting') {
      PageState.setCurrentPage('setting');
      (() async {
        _languageKey = await LanguageState.getLanguageCode();
        _languageValue = ConstValue.languageCode[_languageKey] ?? '';
        await Preferences.initial();
        _controllerCandidateText.text = Preferences.candidateText;
        _countdownTime = Preferences.countdownTime;
        _soundReadyVolume = Preferences.soundReadyVolume;
        _soundStartVolume = Preferences.soundStartVolume;
        setState((){});
      })();
    }
    return Scaffold(
      appBar: AppBar(
        centerTitle: true,
        elevation: 0,
        //設定キャンセルボタン
        leading: IconButton(
          icon: const Icon(Icons.close),
          onPressed: () {
            Navigator.of(context).pop(false); //falseを返す
          },
        ),
        title: Text(AppLocalizations.of(context)!.setting),
        foregroundColor: const Color.fromRGBO(255,255,255,1),
        backgroundColor: ConstValue.colorSettingHeader,
        actions: [
          //設定OKボタン
          IconButton(
            icon: const Icon(Icons.check),
            onPressed: () async {
              await LanguageState.setLanguageCode(_languageKey);
              if (_candidateInitialFlag) {
                await Preferences.setCandidateTextDefault();
              } else {
                await Preferences.setCandidateText(_controllerCandidateText.text);
              }
              await Preferences.setCountdownTime(_countdownTime);
              await Preferences.setSoundReadyVolume(_soundReadyVolume);
              await Preferences.setSoundStartVolume(_soundStartVolume);
              if (!mounted) {
                return;
              }
              Navigator.of(context).pop(true);  //trueを返す
            },
          ),
        ],
      ),
      body: Column(children:[
        Expanded(
          child: GestureDetector(
            onTap: () => FocusScope.of(context).unfocus(),  //背景タップでキーボードを仕舞う
            child: SingleChildScrollView(
              child: Padding(
                padding: const EdgeInsets.all(20),
                child: Column(children: [
                  Padding(
                    padding: const EdgeInsets.only(top: 0, left: 16, right: 16, bottom: 0),
                    child: Row(children:<Widget>[
                      Expanded(
                        child: Text(AppLocalizations.of(context)!.candidate,style: const TextStyle(fontSize: 16)),
                      ),
                      Text(AppLocalizations.of(context)!.initial),
                      Switch(
                        value: _candidateInitialFlag,
                        onChanged: (bool value) {
                          setState(() {
                            _candidateInitialFlag = value;
                          });
                        },
                        activeColor: Colors.red,
                        inactiveThumbColor: ConstValue.colorUiInactiveColor,
                      ),
                    ]),
                  ),
                  Padding(
                    padding: const EdgeInsets.only(top: 1, left: 16, right: 16, bottom: 16),
                    child: TextField(
                      controller: _controllerCandidateText,
                      maxLines: null, //nullで複数行のテキストエリア
                      decoration: const InputDecoration(
                        border: OutlineInputBorder(),
                      ),
                    ),
                  ),
                  _border(),
                  Padding(
                      padding: const EdgeInsets.only(top: 18, left: 16, right: 16, bottom: 0),
                      child: Row(children: [
                        Text(AppLocalizations.of(context)!.countdownTime,style: const TextStyle(fontSize: 16)),
                        const Spacer(),
                      ])
                  ),
                  Padding(
                      padding: const EdgeInsets.only(top: 0, left: 16, right: 16, bottom: 6),
                      child: Row(children: <Widget>[
                        Text(_countdownTime.toString()),
                        Expanded(
                            child: Slider(
                              value: _countdownTime.toDouble(),
                              min: 0,
                              max: 9,
                              divisions: 9,
                              onChanged: (double value) {
                                setState(() {
                                  _countdownTime = value.toInt();
                                });
                              },
                              activeColor: ConstValue.colorUiActiveColor,
                              inactiveColor: ConstValue.colorUiInactiveColor,
                            )
                        )
                      ])
                  ),
                  _border(),
                  Padding(
                      padding: const EdgeInsets.only(top: 18, left: 16, right: 16, bottom: 0),
                      child: Row(children: [
                        Text(AppLocalizations.of(context)!.soundReadyVolume,style: const TextStyle(fontSize: 16)),
                        const Spacer(),
                      ])
                  ),
                  Padding(
                      padding: const EdgeInsets.only(top: 0, left: 16, right: 16, bottom: 6),
                      child: Row(children: <Widget>[
                        Text(_soundReadyVolume.toString()),
                        Expanded(
                            child: Slider(
                              value: _soundReadyVolume,
                              min: 0.0,
                              max: 1.0,
                              divisions: 10,
                              onChanged: (double value) {
                                setState(() {
                                  _soundReadyVolume = value;
                                });
                              },
                              activeColor: ConstValue.colorUiActiveColor,
                              inactiveColor: ConstValue.colorUiInactiveColor,
                            )
                        )
                      ])
                  ),
                  _border(),
                  Padding(
                      padding: const EdgeInsets.only(top: 18, left: 16, right: 16, bottom: 0),
                      child: Row(children: [
                        Text(AppLocalizations.of(context)!.soundStartVolume,style: const TextStyle(fontSize: 16)),
                        const Spacer(),
                      ])
                  ),
                  Padding(
                      padding: const EdgeInsets.only(top: 0, left: 16, right: 16, bottom: 6),
                      child: Row(children: <Widget>[
                        Text(_soundStartVolume.toString()),
                        Expanded(
                            child: Slider(
                              value: _soundStartVolume,
                              min: 0.0,
                              max: 1.0,
                              divisions: 10,
                              onChanged: (double value) {
                                setState(() {
                                  _soundStartVolume = value;
                                });
                              },
                              activeColor: ConstValue.colorUiActiveColor,
                              inactiveColor: ConstValue.colorUiInactiveColor,
                            )
                        )
                      ])
                  ),
                  _border(),
                  Padding(
                      padding: const EdgeInsets.only(top: 18, left: 0, right: 0, bottom: 0),
                      child: Row(children:[
                        const SizedBox(width:16),
                        Text(AppLocalizations.of(context)!.language,
                            style: const TextStyle(
                              fontSize: 16,
                            )
                        ),
                        const Spacer(),
                      ])
                  ),
                  Padding(
                    padding: const EdgeInsets.only(top: 12, left: 0, right: 0, bottom: 18),
                    child: Table(
                        children: <TableRow>[
                          TableRow(children: <Widget>[
                            _languageTableCell(0),
                            _languageTableCell(1),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(2),
                            _languageTableCell(3),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(4),
                            _languageTableCell(5),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(6),
                            _languageTableCell(7),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(8),
                            _languageTableCell(9),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(10),
                            _languageTableCell(11),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(12),
                            _languageTableCell(13),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(14),
                            _languageTableCell(15),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(16),
                            _languageTableCell(17),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(18),
                            _languageTableCell(19),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(20),
                            _languageTableCell(21),
                          ]),
                          TableRow(children: <Widget>[
                            _languageTableCell(22),
                            _languageTableCell(23),
                          ]),
                        ]
                    ),
                  ),
                  _border(),
                  Padding(
                    padding: const EdgeInsets.only(top: 24, left: 0, right: 0, bottom: 24),
                    child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children:[
                          Text(AppLocalizations.of(context)!.usage1),
                          const SizedBox(height:15),
                          Text(AppLocalizations.of(context)!.usage2),
                          const SizedBox(height:15),
                          Text(AppLocalizations.of(context)!.usage3),
                          const SizedBox(height:15),
                          Text(AppLocalizations.of(context)!.usage4),
                        ]
                    ),
                  ),
                  _border(),
                  Padding(
                    padding: const EdgeInsets.only(top: 24, left: 0, right: 0, bottom: 36),
                    child: SizedBox(
                      child: Text('version  ${VersionState.versionLoad()}',
                        style: const TextStyle(
                          fontSize: 10,
                        ),
                      ),
                    ),
                  ),
                ]),
              ),
            ),
          ),
        ),
        Padding(
          padding: const EdgeInsets.only(top: 10, left: 0, right: 0, bottom: 0),
          child: SizedBox(
            width: double.infinity,
            child: _adMob.getAdBannerWidget(),
          ),
        ),
      ]),
    );
  }
  //UIの仕切り用ボーダーライン
  Widget _border() {
    return Container(
      decoration: BoxDecoration(
        border: Border(
          top: BorderSide(
            color: Colors.grey.shade300,
            width: 1,
          ),
        ),
      ),
    );
  }
  //言語一覧表示
  TableCell _languageTableCell(int index) {
    return TableCell(
      child: RadioListTile(
        visualDensity: const VisualDensity(horizontal: VisualDensity.minimumDensity,vertical: VisualDensity.minimumDensity),
        contentPadding: EdgeInsets.zero,
        title: Text(ConstValue.languageCode.values.elementAt(index)),
        value: ConstValue.languageCode.values.elementAt(index),
        groupValue: _languageValue,
        onChanged: (String? value) {
          setState(() {
            _languageValue = value ?? '';
            _languageKey = ConstValue.languageCode.keys.elementAt(index);
          });
        },
        activeColor: ConstValue.colorUiActiveColor,
      ),
    );
  }

}

/// Copyright© ao-system, Inc.

///
/// @author akira ohmachi
/// @copyright ao-system, Inc.
/// @date 2023-01-27
///
library;

class VersionState {

  static String _version = '';

  //バージョンを記録
  static void versionSave(String str) {
    _version = str;
  }
  //バージョンを返す
  static String versionLoad() {
    return _version;
  }

}

Source code

Last build date: 2023-11-24

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