修复安卓bug

lib/app/modules/kr_home/controllers/kr_home_controller.dart

@@ -537,7 +537,7 @@ class KRHomeController extends GetxController {
       kr_isSwitching = true;
       if (value) {
         await KRSingBoxImp.instance.kr_start();
-        
+
         // 添加延迟验证，确保状态正确更新
         Future.delayed(const Duration(seconds: 2), () {
           kr_forceSyncConnectionStatus();
@@ -547,6 +547,10 @@ class KRHomeController extends GetxController {
       }
     } catch (e) {
       KRLogUtil.kr_e('切换失败: $e', tag: 'HomeController');
+      // 当启动失败时（如VPN权限被拒绝），强制同步状态
+      Future.delayed(const Duration(milliseconds: 100), () {
+        kr_forceSyncConnectionStatus();
+      });
     } finally {
       // 确保在任何情况下都会重置标志
       kr_isSwitching = false;

lib/app/services/singbox_imp/kr_sing_box_imp.dart

@@ -430,7 +430,7 @@ class KRSingBoxImp {
       KRLogUtil.kr_i('🚀 开始启动 SingBox...', tag: 'SingBox');
       KRLogUtil.kr_i('📁 配置文件路径: $_cutPath', tag: 'SingBox');
       KRLogUtil.kr_i('📝 配置名称: $kr_configName', tag: 'SingBox');
-      
+
       // 检查配置文件是否存在
       final configFile = File(_cutPath);
       if (await configFile.exists()) {
@@ -440,20 +440,26 @@ class KRSingBoxImp {
       } else {
         KRLogUtil.kr_w('⚠️ 配置文件不存在: $_cutPath', tag: 'SingBox');
       }
-      
+
       await kr_singBox.start(_cutPath, kr_configName, false).map(
         (r) {
           KRLogUtil.kr_i('✅ SingBox 启动成功', tag: 'SingBox');
         },
       ).mapLeft((err) {
         KRLogUtil.kr_e('❌ SingBox 启动失败: $err', tag: 'SingBox');
+        // 确保状态重置为Stopped，触发UI更新
         kr_status.value = SingboxStopped();
+        // 强制刷新状态以触发观察者
+        kr_status.refresh();
         throw err;
       }).run();
     } catch (e, stackTrace) {
       KRLogUtil.kr_e('💥 SingBox 启动异常: $e', tag: 'SingBox');
       KRLogUtil.kr_e('📚 错误堆栈: $stackTrace', tag: 'SingBox');
+      // 确保状态重置为Stopped，触发UI更新
       kr_status.value = SingboxStopped();
+      // 强制刷新状态以触发观察者
+      kr_status.refresh();
       rethrow;
     }
   }