单独缓存车牌

ln_jq_app/lib/storage_service.dart

@@ -3,6 +3,7 @@ import 'package:get/get.dart';
 import 'package:get_storage/get_storage.dart';
 import 'package:getx_scaffold/common/utils/log_util.dart';
 import 'package:ln_jq_app/common/model/vehicle_info.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 /// 定义登录渠道的枚举类型
 enum LoginChannel {
@@ -103,6 +104,9 @@ class StorageService extends GetxService {
 
   Future<void> saveVehicleInfo(VehicleInfo data) async {
     await _box.write(_vehicleInfoKey, vehicleInfoToJson(data));
+
+    final SharedPreferences prefs = await SharedPreferences.getInstance();
+    await prefs.setString('plateNumber', data.plateNumber ?? "");
   }
 
   Future<void> saveStationCredentials(String account, String password) async {
@@ -117,6 +121,9 @@ class StorageService extends GetxService {
 
   Future<void> clearVehicleInfo() async {
     await _box.remove(_vehicleInfoKey);
+
+    final SharedPreferences prefs = await SharedPreferences.getInstance();
+    await prefs.remove('plateNumber');
   }
 
   Future<void> clearStationCredentials() async {