【Flutter入門講座 第6回】画面遷移・テスト・リリースまで。Navigatorとウィジェットテスト、App Store・Google Playへの公開準備

Future<void> _openEditor(BuildContext context) async {
  final text = await Navigator.push<String>(
    context,
    MaterialPageRoute(builder: (_) => const MemoEditPage()),
  );
  if (text != null) store.add(text); // 戻るボタンで閉じたときは null
}

class MemoEditPage extends StatefulWidget {
  const MemoEditPage({super.key, this.initialText = ''});

  final String initialText;

  @override
  State<MemoEditPage> createState() => _MemoEditPageState();
}

class _MemoEditPageState extends State<MemoEditPage> {
  late final _controller = TextEditingController(text: widget.initialText);

  @override
  void dispose() {
    _controller.dispose(); // 使い終わったら片付ける
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('メモを書く')),
      body: Padding(
        padding: const EdgeInsets.all(16),
        child: TextField(
          controller: _controller,
          autofocus: true,
          maxLength: 100,
          decoration: const InputDecoration(
            labelText: 'メモ',
            border: OutlineInputBorder(),
          ),
        ),
      ),
      floatingActionButton: FloatingActionButton.extended(
        onPressed: () => Navigator.pop(context, _controller.text),
        icon: const Icon(Icons.check),
        label: const Text('保存'),
      ),
    );
  }
}

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:http/http.dart' as http;
import 'package:http/testing.dart';
import 'package:memo_app/main.dart';
import 'package:memo_app/memo_repository.dart';
import 'package:memo_app/memo_store.dart';
import 'package:memo_app/quote_api.dart';

void main() {
  testWidgets('メモを追加して完了にできる', (tester) async {
    final store = MemoStore(InMemoryMemoRepository());
    final api = SuggestionApi(
      client: MockClient(
        (_) async => http.Response.bytes(utf8.encode('{"title":"テスト"}'), 200),
      ),
    );
    await tester.pumpWidget(MemoApp(store: store, api: api));

    expect(find.text('メモはまだありません'), findsOneWidget);

    // ＋ボタン → 入力 → 保存
    await tester.tap(find.byIcon(Icons.add));
    await tester.pumpAndSettle();
    await tester.enterText(find.byType(TextField), '牛乳を買う');
    await tester.tap(find.text('保存'));
    await tester.pumpAndSettle();

    expect(find.text('牛乳を買う'), findsOneWidget);
    expect(find.text('メモ（残り 1 件）'), findsOneWidget);

    // チェックを入れると残りが 0 件に
    await tester.tap(find.byType(Checkbox));
    await tester.pump();
    expect(find.text('メモ（残り 0 件）'), findsOneWidget);

    // API から候補を取得
    await tester.tap(find.byIcon(Icons.cloud_download_outlined));
    await tester.pumpAndSettle();
    expect(find.text('テスト'), findsOneWidget);
  });
}

flutter test

00:00 +1: All tests passed!

version: 1.0.0+1

keytool -genkey -v -keystore ~/upload-keystore.jks -keyalg RSA \
  -keysize 2048 -validity 10000 -alias upload

flutter build appbundle
# → build/app/outputs/bundle/release/ に .aab ファイルができる

flutter build ipa
# → build/ios/archive/ と build/ios/ipa/ に出力

platform :ios, '15.0'

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '15.0'
    end
  end
end