重构

lib/services/network_listener_service.dart

@@ -4,23 +4,22 @@
 /// 最新变化: 新增 NetworkEventType.search 与 sendSearchEvent，供诗词搜索页通知
 
 import 'dart:async';
-import 'package:flutter/foundation.dart';
 
 /// 网络状态枚举
 enum NetworkStatus {
-  idle,       // 空闲
-  loading,    // 加载中
-  success,    // 成功
-  error,      // 错误
+  idle, // 空闲
+  loading, // 加载中
+  success, // 成功
+  error, // 错误
 }
 
 /// 网络事件类型
 enum NetworkEventType {
-  like,       // 点赞操作
-  unlike,     // 取消点赞
-  refresh,    // 刷新操作
-  load,       // 加载操作
-  search,     // 诗词搜索完成
+  like, // 点赞操作
+  unlike, // 取消点赞
+  refresh, // 刷新操作
+  load, // 加载操作
+  search, // 诗词搜索完成
   noteUpdate, // 笔记更新（新建/编辑/删除）
 }
 
@@ -41,20 +40,21 @@ class NetworkEvent {
 
 /// 网络监听服务
 class NetworkListenerService {
-  static final NetworkListenerService _instance = NetworkListenerService._internal();
+  static final NetworkListenerService _instance =
+      NetworkListenerService._internal();
   factory NetworkListenerService() => _instance;
   NetworkListenerService._internal();
 
   // 状态管理
   NetworkStatus _status = NetworkStatus.idle;
   final Map<String, bool> _loadingStates = {};
-  
+
   // 事件流控制器
-  final StreamController<NetworkEvent> _eventController = 
+  final StreamController<NetworkEvent> _eventController =
       StreamController<NetworkEvent>.broadcast();
-  
+
   // 状态流控制器
-  final StreamController<NetworkStatus> _statusController = 
+  final StreamController<NetworkStatus> _statusController =
       StreamController<NetworkStatus>.broadcast();
 
   // 公开流
@@ -89,10 +89,7 @@ class NetworkListenerService {
   /// 发送错误事件
   void sendErrorEvent(NetworkEventType type, {String? errorMessage}) {
     _updateStatus(NetworkStatus.error);
-    _eventController.add(NetworkEvent(
-      type: type,
-      errorMessage: errorMessage,
-    ));
+    _eventController.add(NetworkEvent(type: type, errorMessage: errorMessage));
   }
 
   /// 发送点赞事件
@@ -131,7 +128,7 @@ class NetworkListenerService {
 /// 方便其他类使用网络监听功能
 mixin NetworkListenerMixin {
   final NetworkListenerService _networkService = NetworkListenerService();
-  
+
   Stream<NetworkEvent> get networkEvents => _networkService.eventStream;
   Stream<NetworkStatus> get networkStatus => _networkService.statusStream;
   NetworkStatus get currentNetworkStatus => _networkService.currentStatus;