修正切换和国旗问题

(cherry picked from commit bec2464da85e981636077276de36b2ea5f6c40f4)

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

@@ -1195,6 +1195,7 @@ class KRHomeController extends GetxController with WidgetsBindingObserver {
 
         // 恢复原状态
         kr_cutTag.value = originalTag;
+        kr_currentNodeName.value = originalTag; // 🔧 修复：同时恢复节点名称显示
         kr_currentNodeLatency.value = -2; // 恢复为未连接状态
 
         // 显示错误提示给用户
@@ -1222,11 +1223,77 @@ class KRHomeController extends GetxController with WidgetsBindingObserver {
   }
 
   /// 获取当前节点国家
+  /// 🔧 修复：使用 kr_cutTag 而不是 kr_cutSeletedTag，确保UI立即响应
+  /// 🔧 修复：处理 "auto" 等特殊标签，从活动组中获取实际选中的节点
   String kr_getCurrentNodeCountry() {
-    if (kr_cutSeletedTag.isEmpty) return '';
-    final node = kr_subscribeService.keyList[kr_cutSeletedTag.value];
-    KRLogUtil.kr_i(kr_cutSeletedTag.value, tag: "kr_getCurrentNodeCountry");
-    return node?.country ?? '';
+    KRLogUtil.kr_i('========== 开始获取国家代码 ==========', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('kr_cutTag: ${kr_cutTag.value}', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('kr_cutSeletedTag: ${kr_cutSeletedTag.value}', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('keyList 节点总数: ${kr_subscribeService.keyList.length}', tag: 'getCurrentNodeCountry');
+
+    if (kr_cutTag.isEmpty) {
+      KRLogUtil.kr_w('kr_cutTag 为空，返回空字符串', tag: 'getCurrentNodeCountry');
+      return '';
+    }
+
+    String actualTag = kr_cutTag.value;
+
+    // 🔧 修复：如果是 "auto" 或其他选择器组，从活动组中获取实际选中的节点
+    if (actualTag == 'auto' || actualTag == 'select') {
+      try {
+        KRLogUtil.kr_i('检测到特殊标签: $actualTag，尝试从活动组获取实际节点', tag: 'getCurrentNodeCountry');
+        KRLogUtil.kr_i('活动组数量: ${KRSingBoxImp.instance.kr_activeGroups.length}', tag: 'getCurrentNodeCountry');
+
+        // 从 SingBox 活动组中找到 "select" 选择器组
+        final selectGroup = KRSingBoxImp.instance.kr_activeGroups.firstWhere(
+          (group) => group.tag == 'select',
+          orElse: () => throw Exception('未找到 select 组'),
+        );
+
+        KRLogUtil.kr_i('找到 select 组，当前选中: ${selectGroup.selected}', tag: 'getCurrentNodeCountry');
+
+        // 获取该组当前选中的实际节点标签
+        if (selectGroup.selected.isNotEmpty) {
+          actualTag = selectGroup.selected;
+          KRLogUtil.kr_i('从 select 组获取实际节点: $actualTag', tag: 'getCurrentNodeCountry');
+        }
+      } catch (e) {
+        KRLogUtil.kr_w('获取实际节点失败: $e', tag: 'getCurrentNodeCountry');
+        // 失败时使用 kr_cutSeletedTag 作为备选
+        if (kr_cutSeletedTag.value.isNotEmpty && kr_cutSeletedTag.value != 'auto') {
+          actualTag = kr_cutSeletedTag.value;
+          KRLogUtil.kr_i('使用 kr_cutSeletedTag 作为备选: $actualTag', tag: 'getCurrentNodeCountry');
+        }
+      }
+    }
+
+    // 使用实际节点标签查找国家代码
+    KRLogUtil.kr_i('查找节点: $actualTag', tag: 'getCurrentNodeCountry');
+    final node = kr_subscribeService.keyList[actualTag];
+
+    if (node == null) {
+      KRLogUtil.kr_e('❌ 节点未找到: $actualTag', tag: 'getCurrentNodeCountry');
+      KRLogUtil.kr_e('keyList 中的所有节点标签:', tag: 'getCurrentNodeCountry');
+      int count = 0;
+      for (var key in kr_subscribeService.keyList.keys) {
+        count++;
+        KRLogUtil.kr_e('  [$count] $key -> country: ${kr_subscribeService.keyList[key]?.country}', tag: 'getCurrentNodeCountry');
+        if (count >= 10) {
+          KRLogUtil.kr_e('  ... 还有 ${kr_subscribeService.keyList.length - 10} 个节点', tag: 'getCurrentNodeCountry');
+          break;
+        }
+      }
+      return '';
+    }
+
+    KRLogUtil.kr_i('✅ 找到节点: $actualTag', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('  - city: ${node.city}', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('  - country: "${node.country}"', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('  - country.isEmpty: ${node.country.isEmpty}', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('  - country.length: ${node.country.length}', tag: 'getCurrentNodeCountry');
+    KRLogUtil.kr_i('========== 国家代码获取结束 ==========', tag: 'getCurrentNodeCountry');
+
+    return node.country;
   }
 
   /// 获取真实连接的节点信息（auto 模式下获取实际连接的节点）

lib/app/modules/kr_home/views/kr_home_connection_info_view.dart

@@ -79,9 +79,14 @@ class KRHomeConnectionInfoView extends GetView<KRHomeController> {
                 children: [
                   Row(
                     children: [
-                      KRCountryFlag(
-                        countryCode: controller.kr_getCurrentNodeCountry(),
-                      ),
+                      // 🔧 修复：使用 Obx 包裹确保国旗响应式更新
+                      Obx(() {
+                        final countryCode = controller.kr_getCurrentNodeCountry();
+                        print('🌍 ConnectionInfo 更新，国家代码: $countryCode');
+                        return KRCountryFlag(
+                          countryCode: countryCode,
+                        );
+                      }),
                       SizedBox(width: 10.w),
                       Column(
                         crossAxisAlignment: CrossAxisAlignment.start,