Create a terms and conditions widget

lib/main.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:memories/pages/home/home.dart';
 import 'package:memories/services/level_service.dart';
 import 'package:memories/services/storage_service.dart';
+import 'package:memories/services/terms_and_conditions_service.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -37,16 +38,21 @@ class MyApp extends StatelessWidget {
             snapshot.hasData) {
           final preferences = snapshot.data as SharedPreferences;
           final storageService = StorageService(preferences);
-          return ChangeNotifierProvider(
-            create: (context) => LevelService(storageService),
-            builder: (context, child) {
-              return MaterialApp(
+          return MultiProvider(
+              providers: [
+                ChangeNotifierProvider<LevelService>(
+                  create: (context) => LevelService(storageService),
+                ),
+                ChangeNotifierProvider<TermsAndConditionsService>(
+                  create: (context) =>
+                      TermsAndConditionsService(storageService),
+                ),
+              ],
+              child: MaterialApp(
                   title: 'Memories',
                   theme: _setUpTheme(),
                   // Use a future builder to await the access to shared preferences
-                  home: const HomePage());
-            },
-          );
+                  home: const HomePage()));
         } else {
           return const Center(child: CircularProgressIndicator());
         }

lib/pages/home/components/terms_and_conditions.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+
+class TermsAndConditions extends StatelessWidget {
+  final VoidCallback onAcceptConditions;
+
+  const TermsAndConditions({super.key, required this.onAcceptConditions});
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 16.0),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        crossAxisAlignment: CrossAxisAlignment.center,
+        children: <Widget>[
+          const Text(
+            'The content of the app can not be shared with anyone.'
+            'By accepting, you agree to the terms and conditions.',
+            style: TextStyle(
+              fontSize: 16.0,
+              fontWeight: FontWeight.normal,
+            ),
+            textAlign: TextAlign.center,
+          ),
+          const SizedBox(height: 16.0),
+          ElevatedButton(
+            onPressed: onAcceptConditions,
+            child: const Text(
+              'Accept',
+              style: TextStyle(
+                fontSize: 18.0,
+                fontWeight: FontWeight.bold,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/pages/home/home.dart

@@ -3,10 +3,12 @@ import 'package:memories/model/gift.dart';
 import 'package:memories/model/quiz_question.dart';
 import 'package:memories/pages/gift/gift.dart';
 import 'package:memories/pages/home/components/level_box.dart';
+import 'package:memories/pages/home/components/terms_and_conditions.dart';
 import 'package:memories/pages/home/services/question_service.dart';
 import 'package:memories/pages/prize/prize.dart';
 import 'package:memories/pages/question/question.dart';
 import 'package:memories/services/level_service.dart';
+import 'package:memories/services/terms_and_conditions_service.dart';
 import 'package:provider/provider.dart';
 
 class HomePage extends StatefulWidget {
@@ -21,6 +23,7 @@ class _HomePageState extends State<HomePage> {
   final int columnCount = 3;
   int currentLevel = 0;
   List<QuizQuestion> questions = [];
+  bool termsAccepted = false;
 
   void _navigateToQuestion(int index) {
     Navigator.push(
@@ -65,6 +68,7 @@ class _HomePageState extends State<HomePage> {
         this.questions = questions;
       });
     });
+    Future.delayed(const Duration(milliseconds: 100), _setTermsAndConditions);
     Future.delayed(const Duration(milliseconds: 100), _setCurrentLevel);
   }
 
@@ -83,6 +87,18 @@ class _HomePageState extends State<HomePage> {
     });
   }
 
+  void _setTermsAndConditions() {
+    bool? termsAndConditions =
+        Provider.of<TermsAndConditionsService>(context, listen: false)
+            .getTermsAndConditions();
+    print("Terms and conditions is $currentLevel");
+    if (termsAndConditions != null) {
+      setState(() {
+        termsAccepted = termsAndConditions;
+      });
+    }
+  }
+
   void _onTapLevel(int index, int level) {
     if (level > currentLevel) {
       return;
@@ -99,6 +115,39 @@ class _HomePageState extends State<HomePage> {
     _navigateToQuestion(index);
   }
 
+  Widget _buildQuestions() {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 16.0),
+      child: GridView.count(
+        crossAxisCount: columnCount,
+        children: List.generate(
+          questions.length,
+          (index) {
+            int level = questions[index].level;
+            return GestureDetector(
+              onTap: () => _onTapLevel(index, level),
+              child: LevelBox(
+                  index: level,
+                  completed: level < currentLevel,
+                  disabled: level > currentLevel,
+                  selected: level == currentLevel),
+            );
+          },
+        ),
+      ),
+    );
+  }
+
+  void _onAcceptConditions() {
+    Provider.of<TermsAndConditionsService>(context, listen: false)
+        .setTermsAndConditions(true)
+        .then((value) => {
+              setState(() {
+                termsAccepted = true;
+              })
+            });
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -109,26 +158,9 @@ class _HomePageState extends State<HomePage> {
       ),
       body: questions.isEmpty
           ? const Center(child: CircularProgressIndicator())
-          : Padding(
-              padding: const EdgeInsets.symmetric(horizontal: 16.0),
-              child: GridView.count(
-                crossAxisCount: columnCount,
-                children: List.generate(
-                  questions.length,
-                  (index) {
-                    int level = questions[index].level;
-                    return GestureDetector(
-                      onTap: () => _onTapLevel(index, level),
-                      child: LevelBox(
-                          index: level,
-                          completed: level < currentLevel,
-                          disabled: level > currentLevel,
-                          selected: level == currentLevel),
-                    );
-                  },
-                ),
-              ),
-            ),
+          : termsAccepted
+              ? _buildQuestions()
+              : TermsAndConditions(onAcceptConditions: _onAcceptConditions),
     );
   }
 }

lib/services/terms_and_conditions_service.dart

@@ -0,0 +1,16 @@
+import 'package:flutter/foundation.dart';
+import 'package:memories/services/storage_service.dart';
+
+class TermsAndConditionsService extends ChangeNotifier {
+  final StorageService _storageService;
+
+  TermsAndConditionsService(this._storageService);
+
+  Future<void> setTermsAndConditions(bool termsAndConditions) async {
+    await _storageService.saveBool('termsAccepted', termsAndConditions);
+  }
+
+  bool? getTermsAndConditions() {
+    return _storageService.getBool('termsAccepted');
+  }
+}