add: sharedpreference

lib/app.dart

@@ -1,7 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_state_notifier/flutter_state_notifier.dart';
 import 'package:morning_weakers/infrastructure/firebase_auth_service.dart';
-import 'package:morning_weakers/models/models.dart';
 import 'package:morning_weakers/pages/all/all_page.dart';
 import 'package:morning_weakers/pages/group_result/group_result_page.dart';
 import 'package:morning_weakers/pages/login/login_page.dart';

lib/pages/state_notifier_sample/state_notifier_sample_controller.dart

@@ -42,7 +42,7 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
     if (firebaseUser == null) {
       return;
     }
-    final Hackathon hackathon = await hackathonRepository.getHackathon(hackathonRepository.currentHackathonId);
+    final Hackathon hackathon = await hackathonRepository.getHackathon(await hackathonRepository.currentHackathonId());
     state = state.copyWith(hackathon: hackathon);
   }
 
@@ -70,7 +70,7 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
       return;
     }
     await hackathonRepository.joinHackathon(
-      dummyHackathon(id: hackathonRepository.currentHackathonId),
+      dummyHackathon(id: await hackathonRepository.currentHackathonId()),
       [dummyTechnicalStack()],
       2,
       '備考だよ',
@@ -82,7 +82,7 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
     if (firebaseUser == null) {
       return;
     }
-    await questionnaireRepository.createQuestionnaire(hackathonRepository.currentHackathonId, dummyQuestionnaire());
+    await questionnaireRepository.createQuestionnaire(await hackathonRepository.currentHackathonId(), dummyQuestionnaire());
   }
 
   Future<void> getParticipants() async {
@@ -91,7 +91,7 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
       return;
     }
     final List<Participant> participants =
-        await participantRepository.getParticipants(hackathonRepository.currentHackathonId);
+        await participantRepository.getParticipants(await hackathonRepository.currentHackathonId());
     state = state.copyWith(participants: participants);
   }
 
@@ -100,7 +100,7 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
     if (firebaseUser == null) {
       return;
     }
-    final List<Group> groups = await groupRepository.getGroups(hackathonRepository.currentHackathonId);
+    final List<Group> groups = await groupRepository.getGroups(await hackathonRepository.currentHackathonId());
     state = state.copyWith(groups: groups);
   }
 
@@ -109,6 +109,6 @@ class SampleController extends StateNotifier<SampleState> with LocatorMixin {
     if (firebaseUser == null) {
       return;
     }
-    await groupRepository.createGroups(hackathonRepository.currentHackathonId, [dummyGroup()]);
+    await groupRepository.createGroups(await hackathonRepository.currentHackathonId(), [dummyGroup()]);
   }
 }

lib/repositories/hackathon_repository.dart

@@ -2,16 +2,21 @@ import 'package:cloud_firestore/cloud_firestore.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:morning_weakers/infrastructure/firebase_auth_service.dart';
 import 'package:morning_weakers/models/models.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
+// TODO: コンストラクタor init時にSharedPreferencesからhackathonIdを取得して変数に保持したい
 class HackathonRepository {
   HackathonRepository(this.authService);
 
+  static const String HACKATHON_ID_KEY = 'hackathonId';
   final FirebaseAuthService authService;
   final Firestore _firestore = Firestore.instance;
 
-  String _currentHackathonId;
+  Future<SharedPreferences> prefs = SharedPreferences.getInstance();
 
-  String get currentHackathonId => _currentHackathonId;
+  Future<String> currentHackathonId() async {
+    return Future.value((await prefs).getString(HACKATHON_ID_KEY));
+  }
 
   /// ハッカソンの新規作成
   Future<void> createHackathon(Hackathon hackathon) async {
@@ -21,15 +26,15 @@ class HackathonRepository {
       ..remove('groups')
       ..remove('notifications');
     debugPrint(hackMap.toString());
-    await hackRef.setData(hackMap).whenComplete(() {
+    await hackRef.setData(hackMap).whenComplete(() async {
       // participantsのSubCollectionに代入
       final CollectionReference participantsRef = hackRef.collection('participants');
       hackathon.participants.forEach((participant) async {
         await participantsRef.add(participant.toJson()..remove('id'));
       });
       // TODO: 作成者も強制的にハッカソンに参加する仕様。あとで話し合う
-      _updateJoined(hackathon.copyWith(id: hackRef.documentID));
-      _currentHackathonId = hackRef.documentID;
+      await _updateJoined(hackathon.copyWith(id: hackRef.documentID));
+      await (await prefs).setString(HACKATHON_ID_KEY, hackRef.documentID);
     });
   }
 
@@ -56,7 +61,7 @@ class HackathonRepository {
     final List<Map<String, dynamic>> groups = await getJsonList('groups');
     final List<Map<String, dynamic>> notifications = await getJsonList('notifications');
 
-    _currentHackathonId = hackathonId;
+    await (await prefs).setString(HACKATHON_ID_KEY, hackRef.documentID);
 
     return Future.value(Hackathon.fromJson(hackSnapshot.data
       ..putIfAbsent('id', () => hackRef.documentID)

pubspec.lock

@@ -520,6 +520,34 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.24.1"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      name: shared_preferences
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.7+3"
+  shared_preferences_macos:
+    dependency: transitive
+    description:
+      name: shared_preferences_macos
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.1+10"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.2+7"
   shelf:
     dependency: transitive
     description:

pubspec.yaml

@@ -24,6 +24,7 @@ dependencies:
   cloud_firestore: 0.13.6
   firebase_storage: 3.1.6
   rxdart: 0.24.1
+  shared_preferences: 0.5.7+3
 
   cupertino_icons: ^0.1.3
   intl: ^0.15.7