Create separate SharedPreferences provider

lib/src/features/onboarding/data/onboarding_repository.dart

@@ -1,6 +1,7 @@
 import 'package:riverpod/riverpod.dart';
 import 'package:riverpod_annotation/riverpod_annotation.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:starter_architecture_flutter_firebase/src/utils/shared_preferences_provider.dart';
 
 part 'onboarding_repository.g.dart';
 
@@ -19,7 +20,7 @@ class OnboardingRepository {
 }
 
 @Riverpod(keepAlive: true)
-Future<OnboardingRepository> onboardingRepository(
-    Ref ref) async {
-  return OnboardingRepository(await SharedPreferences.getInstance());
+Future<OnboardingRepository> onboardingRepository(Ref ref) async {
+  return OnboardingRepository(
+      ref.watch(sharedPreferencesProvider).requireValue);
 }

lib/src/routing/app_startup.dart

@@ -39,6 +39,7 @@ class AppStartupWidget extends ConsumerWidget {
   }
 }
 
+/// Widget to show while initialization is in progress
 class AppStartupLoadingWidget extends StatelessWidget {
   const AppStartupLoadingWidget({super.key});
 
@@ -53,6 +54,7 @@ class AppStartupLoadingWidget extends StatelessWidget {
   }
 }
 
+/// Widget to show if initialization fails
 class AppStartupErrorWidget extends StatelessWidget {
   const AppStartupErrorWidget(
       {super.key, required this.message, required this.onRetry});
@@ -79,13 +81,3 @@ class AppStartupErrorWidget extends StatelessWidget {
     );
   }
 }
-
-class AppStartupDataWidget extends StatelessWidget {
-  const AppStartupDataWidget({super.key, required this.child});
-  final Widget child;
-
-  @override
-  Widget build(BuildContext context) {
-    return child;
-  }
-}

lib/src/utils/shared_preferences_provider.dart

@@ -0,0 +1,10 @@
+import 'package:riverpod/riverpod.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+part 'shared_preferences_provider.g.dart';
+
+@Riverpod(keepAlive: true)
+Future<SharedPreferences> sharedPreferences(Ref ref) {
+  return SharedPreferences.getInstance();
+}