优化

lib/services/service_locator.dart

@@ -0,0 +1,77 @@
+import 'package:flutter/foundation.dart';
+
+import 'storage_service.dart';
+import 'notification_service.dart';
+import 'encouragement_service.dart';
+
+/// Service Locator - 统一管理所有服务实例
+class ServiceLocator {
+  static final ServiceLocator _instance = ServiceLocator._internal();
+  factory ServiceLocator() => _instance;
+  ServiceLocator._internal();
+
+  late StorageService _storageService;
+  late NotificationService _notificationService;
+  late EncouragementService _encouragementService;
+  bool _isInitialized = false;
+
+  /// 初始化所有服务
+  Future<void> initialize() async {
+    if (_isInitialized) return;
+
+    try {
+      // 初始化存储服务
+      _storageService = StorageService();
+      await _storageService.init();
+
+      // 初始化通知服务
+      _notificationService = NotificationService();
+      await _notificationService.initialize();
+      await _notificationService.requestPermissions();
+
+      // 初始化鼓励语服务
+      _encouragementService = EncouragementService();
+      await _encouragementService.loadMessages();
+
+      _isInitialized = true;
+      if (kDebugMode) {
+        print('ServiceLocator initialized successfully');
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('Failed to initialize ServiceLocator: $e');
+      }
+      rethrow;
+    }
+  }
+
+  /// 获取存储服务实例
+  StorageService get storageService {
+    _checkInitialized();
+    return _storageService;
+  }
+
+  /// 获取通知服务实例
+  NotificationService get notificationService {
+    _checkInitialized();
+    return _notificationService;
+  }
+
+  /// 获取鼓励语服务实例
+  EncouragementService get encouragementService {
+    _checkInitialized();
+    return _encouragementService;
+  }
+
+  /// 检查服务是否已初始化
+  void _checkInitialized() {
+    if (!_isInitialized) {
+      throw Exception('ServiceLocator has not been initialized yet. Call initialize() first.');
+    }
+  }
+
+  /// 重置服务（用于测试）
+  void reset() {
+    _isInitialized = false;
+  }
+}