优化

lib/services/di.dart

@@ -0,0 +1,51 @@
+import 'package:get_it/get_it.dart';
+import 'package:flutter/foundation.dart';
+
+import 'storage_service.dart';
+import 'notification_service.dart';
+import 'encouragement_service.dart';
+
+/// GetIt instance for dependency injection
+final getIt = GetIt.instance;
+
+/// Initialize dependency injection
+Future<void> initializeDI() async {
+  try {
+    // Register services as singletons
+    getIt.registerSingletonAsync<StorageService>(() async {
+      final service = StorageService();
+      await service.init();
+      return service;
+    });
+
+    getIt.registerSingletonAsync<NotificationService>(() async {
+      final service = NotificationService();
+      await service.initialize();
+      await service.requestPermissions();
+      return service;
+    });
+
+    getIt.registerSingletonAsync<EncouragementService>(() async {
+      final service = EncouragementService();
+      await service.loadMessages();
+      return service;
+    });
+
+    // Wait for all services to be initialized
+    await getIt.allReady();
+
+    if (kDebugMode) {
+      print('Dependency injection initialized successfully');
+    }
+  } catch (e) {
+    if (kDebugMode) {
+      print('Failed to initialize dependency injection: $e');
+    }
+    rethrow;
+  }
+}
+
+/// Reset dependency injection (for testing)
+void resetDI() {
+  getIt.reset();
+}