优化一下 扫描状态管理

local_plugins/ble_service/android/src/main/kotlin/com/yunqiinnovation/ble_service/BleService.kt

@@ -344,7 +344,7 @@ object BleService {
         } catch (e: Exception) {
             Log.e(TAG, "启动扫描失败: ${e.message}", e)
 //            Log.i(TAG, "liwei---------startScan 10")
-            isScanning = false
+//            isScanning = false
             return false
         }
     }
@@ -364,8 +364,6 @@ object BleService {
             scanner.stopScan(scanCallback)
             scanHandler.removeCallbacksAndMessages(null)
             isScanning = false
-
-
             return true
         } catch (e: Exception) {
             Log.e(TAG, "停止扫描失败: ${e.message}", e)