切换设备到时候 清除路径规划缓存

lib/features/home/presentation/widgets/ImmersionHeader.dart

@@ -4,6 +4,8 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:go_router/go_router.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'package:maibu_satabot_v2/features/devices/domain/entities/device_entity.dart';
+import 'package:maibu_satabot_v2/features/home/presentation/widgets/common/commonFn.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 import '../../../../core/app/app_user_cubit.dart';
 import '../../../../core/router/route_paths.dart';
@@ -310,6 +312,8 @@ class ImmersionHeader extends StatelessWidget {
                       : () async {
                           // 💡 执行切换逻辑
                           await context.read<DevicesCubit>().switchDevice(device);
+                          await LocationUtils.clearAllPlotCache();
+
                           // 切换成功后，UI 会自动更新（因为 BlocBuilder 在监听），我们可以关闭弹窗
                           if (context.mounted) {
                             Navigator.pop(context);

lib/features/home/presentation/widgets/common/commonFn.dart

@@ -1,6 +1,17 @@
-// common/location_utils.dart
-/// 定位质量解析工具类
+import 'package:shared_preferences/shared_preferences.dart';
+import 'dart:convert';
+
+/// 定位质量解析 + 缓存管理 工具类
 class LocationUtils {
+  // ==================== 1. 缓存键常量（全局复用） ====================
+  static const String kSavedPlotData = 'saved_plot_data';
+  static const String kSavedGcjPathPoints = 'saved_gcj_path_points';
+  static const String kSavedGcjOuterPoints = 'saved_gcj_outer_points';
+  static const String kSavedMarkedPoints = 'saved_marked_points';
+  static const String kSavedObstacleHoles = 'saved_obstacle_holes';
+  static const String kSavedIsWorkAreaCompleted = 'saved_is_work_area_completed';
+
+  // ==================== 2. 定位质量解析相关方法 ====================
   /// 解析定位质量值为可读字符串
   /// [locationValue] 定位质量编码（0/1/2/4/5）
   /// 返回：对应的中文描述
@@ -25,17 +36,60 @@ class LocationUtils {
     switch (value) {
       case 3:
         return '远程控制';
-
       default:
         return '本地控制';
     }
   }
 
-  // 【可选扩展】可添加更多定位相关工具方法
-  // 示例：校验定位质量是否有效
+  /// 校验定位质量是否有效
   static bool isLocationValid(int locationValue) {
     return locationValue != 0;
   }
 
-  
+  // ==================== 3. 缓存操作相关方法（可选扩展，按需添加） ====================
+  /// 保存坐标点数组到 SharedPreferences（自动序列化）
+  static Future<void> saveLatLngList(String key, List<dynamic> points) async {
+    final prefs = await SharedPreferences.getInstance();
+    // 将数组序列化为 JSON 字符串存储
+    await prefs.setString(key, json.encode(points));
+  }
+
+  /// 读取坐标点数组（自动反序列化）
+  static Future<List<dynamic>> getLatLngList(String key) async {
+    final prefs = await SharedPreferences.getInstance();
+    final jsonStr = prefs.getString(key);
+    if (jsonStr == null || jsonStr.isEmpty) return [];
+    try {
+      return json.decode(jsonStr) as List<dynamic>;
+    } catch (e) {
+      print('读取缓存数组失败: $e, key=$key');
+      return [];
+    }
+  }
+
+  /// 清除指定缓存键
+  static Future<void> clearCache(String key) async {
+    final prefs = await SharedPreferences.getInstance();
+    if (prefs.containsKey(key)) {
+      await prefs.remove(key);
+    }
+  }
+
+  /// 清除所有定位/地块相关缓存（仅清除本类定义的键）
+  static Future<void> clearAllPlotCache() async {
+    final prefs = await SharedPreferences.getInstance();
+    // 批量清除本类定义的缓存键
+    final cacheKeys = [kSavedPlotData, kSavedGcjPathPoints, kSavedGcjOuterPoints, kSavedMarkedPoints, kSavedObstacleHoles, kSavedIsWorkAreaCompleted];
+    for (final key in cacheKeys) {
+      if (prefs.containsKey(key)) {
+        await prefs.remove(key);
+      }
+    }
+  }
+
+  // 在 LocationUtils 类中添加
+  static Future<bool> getBool(String key, {bool defaultValue = false}) async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getBool(key) ?? defaultValue;
+  }
 }

lib/features/home/presentation/widgets/map/testmap_pages.dart

@@ -31,6 +31,7 @@ import 'package:maibu_satabot_v2/features/devices/presentation/bloc/device_statu
 import 'package:maibu_satabot_v2/features/devices/presentation/bloc/devices_cubit.dart';
 import 'package:maibu_satabot_v2/features/devices/presentation/bloc/devices_state.dart';
 import 'package:maibu_satabot_v2/features/home/presentation/widgets/BottomDirectionLine.dart';
+import 'package:maibu_satabot_v2/features/home/presentation/widgets/common/commonFn.dart';
 import 'package:maibu_satabot_v2/features/home/presentation/widgets/common/enum.dart';
 import 'package:maibu_satabot_v2/components/input_confirm_dialog.dart';
 import 'package:maibu_satabot_v2/features/home/presentation/widgets/common/tracepoint.dart';
@@ -205,12 +206,11 @@ class _MapPageEnterpriseState extends State<MapPageEnterprise> {
   // 新增：手动清除本地存储数据
   Future<void> _clearLocalData() async {
     try {
-      final prefs = await SharedPreferences.getInstance();
-      prefs.remove(kSavedGcjPathPoints);
-      prefs.remove(kSavedGcjOuterPoints);
-      prefs.remove(kSavedMarkedPoints);
-      prefs.remove(kSavedObstacleHoles);
-      prefs.remove(kSavedIsWorkAreaCompleted);
+      await LocationUtils.clearCache(LocationUtils.kSavedGcjPathPoints);
+      await LocationUtils.clearCache(LocationUtils.kSavedGcjOuterPoints);
+      await LocationUtils.clearCache(LocationUtils.kSavedMarkedPoints);
+      await LocationUtils.clearCache(LocationUtils.kSavedObstacleHoles);
+      await LocationUtils.clearCache(LocationUtils.kSavedIsWorkAreaCompleted);
       debugPrint('本地存储的绘制数据已清空');
     } catch (e) {
       debugPrint('清空本地数据失败：$e');