feat(translation): 优化通话模式下的翻译项布局和语言处理逻辑

调整翻译项在通话模式下的对齐方式，新增通话模式标记控制显示
重构语音识别事件处理逻辑，优化语言代码确定方式
添加BLE服务音频数据接收日志，便于调试

lib/modules/translation/controllers/translation_controller.dart

@@ -847,53 +847,64 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   /// 处理语音识别事件
   /// [event] 识别事件
   void _handleRecognitionEvent(RecognitionEvent event) {
-    if (event.type == RecognitionEventType.finalResult &&
-        event.text.isNotEmpty) {
-      detectedLanguageCode = event.detectedLanguage;
-      print("处理识别完成:${event.text}");
-      if (currentMode.value != 'faceToFace') {
-        handleFinalResult(event.text);
-      } else {
-        faceToFaceRecognitionText.value += event.text;
-        // 添加日志打印
-        Logger.info('lxm-面对面翻译识别文本更新: ${faceToFaceRecognitionText.value}');
-      }
-      if (currentMode.value == 'faceToFace' && activeSpeaker.value == 0) {
-        handleFinalResult(faceToFaceRecognitionText.value);
-        faceToFaceRecognitionText.value = '';
-      }
-    } else if (event.type == RecognitionEventType.finalResult1 &&
-        event.text.isNotEmpty) {
-      // 通话模式下：己方（麦克风）识别完成事件
-      // 若原生未返回检测语言，则兜底为源语言
-      detectedLanguageCode = event.detectedLanguage.isNotEmpty
-          ? event.detectedLanguage
-          : sourceLanguageCode.value;
-      print("处理己方识别完成:${event.text}");
-      if (currentMode.value != 'faceToFace') {
+    // Logger.info("处理识别事件:${event}");
+    switch (event.type) {
+      case RecognitionEventType.finalResult:
+        if (event.text.isEmpty) break;
+        // 通话模式下：目标语言即为识别语言，无需判断
+        detectedLanguageCode = currentMode.value == 'call'
+            ? targetLanguageCode.value
+            : event.detectedLanguage;
+        Logger.info("处理识别完成:${event.text}");
+        if (currentMode.value != 'faceToFace') {
+          handleFinalResult(event.text);
+        } else {
+          faceToFaceRecognitionText.value += event.text;
+          Logger.info('lxm-面对面翻译识别文本更新: ${faceToFaceRecognitionText.value}');
+        }
+        if (currentMode.value == 'faceToFace' && activeSpeaker.value == 0) {
+          handleFinalResult(faceToFaceRecognitionText.value);
+          faceToFaceRecognitionText.value = '';
+        }
+        break;
+
+      case RecognitionEventType.finalResult1:
+        // 通话模式下：己方（麦克风）识别完成事件（对应ast服务）
+        if (event.text.isEmpty) break;
+        //通话模式下：己方语言即为源语言，无需判断
+        detectedLanguageCode = sourceLanguageCode.value;
+        Logger.info("处理己方识别完成:${event.text}");
         handleFinalResult(event.text);
-      } else {
-        faceToFaceRecognitionText.value += event.text;
-        Logger.info('lxm-面对面翻译识别文本更新(己方): ${faceToFaceRecognitionText.value}');
-      }
-      if (currentMode.value == 'faceToFace' && activeSpeaker.value == 0) {
-        handleFinalResult(faceToFaceRecognitionText.value);
-        faceToFaceRecognitionText.value = '';
-      }
-    } else if (event.type == RecognitionEventType.intermediateResult &&
-        event.text.isNotEmpty) {
-      if (event.detectedLanguage.isNotEmpty) {
-        detectedLanguageCode = event.detectedLanguage;
-      }
-      print("处理识别中事件:${event.text}");
-      handleIntermediateResult(event.text);
-    } else if (event.type == RecognitionEventType.error) {
-      Get.snackbar('error'.tr, event.error);
-      isRecognizing.value = false;
-      Logger.error('语音识别错误: ${event.error}');
-    } else if (event.type == RecognitionEventType.canceled) {
-      isRecognizing.value = false;
-      Logger.error('语音识别取消: ${event.error}');
+        break;
+
+      case RecognitionEventType.intermediateResult:
+        if (event.text.isEmpty) break;
+        // 通话模式下：目标语言即为识别语言，无需判断
+        detectedLanguageCode = currentMode.value == 'call'
+            ? targetLanguageCode.value
+            : event.detectedLanguage;
+        Logger.info("处理识别中事件:${event.text}");
+        handleIntermediateResult(event.text);
+        break;
+
+      case RecognitionEventType.error:
+        Get.snackbar('error'.tr, event.error);
+        isRecognizing.value = false;
+        Logger.error('语音识别错误: ${event.error}');
+        break;
+
+      case RecognitionEventType.canceled:
+        isRecognizing.value = false;
+        Logger.error('语音识别取消: ${event.error}');
+        break;
+
+      case RecognitionEventType.sessionStarted:
+        // 可按需处理会话开始事件
+        break;
+
+      case RecognitionEventType.sessionStopped:
+        // 可按需处理会话结束事件
+        break;
     }
   }
 
@@ -919,18 +930,21 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   /// [text] 识别的文本
   void handleIntermediateResult(String text) {
     if (text.isEmpty) return;
-    print(
+    Logger.info(
         "handleIntermediateResult:${translationHistory.isEmpty}${translationHistory.isNotEmpty ? translationHistory.last.isIntermediate : 'N/A'}");
     if (translationHistory.isEmpty ||
         (translationHistory.isNotEmpty &&
             !translationHistory.last.isIntermediate)) {
       currentSessionId ??= DateTime.now().millisecondsSinceEpoch.toString();
 
+      // 关键调整：使用与最终结果一致的语言方向，避免左右“跳变”
+      final languageCodes = _determineLanguageCodes();
+
       final newItem = TranslationItem(
         sourceText: text,
         translatedText: '',
-        sourceLanguageCode: sourceLanguageCode.value,
-        targetLanguageCode: targetLanguageCode.value,
+        sourceLanguageCode: languageCodes['source']!,
+        targetLanguageCode: languageCodes['target']!,
         timestamp: DateTime.now(),
         sessionId: currentSessionId!,
         isFirstInSession: translationHistory.isEmpty ||

lib/modules/translation/views/widgets/translation_item_widget.dart

@@ -49,15 +49,19 @@ class TranslationItemWidget extends GetView<TranslationController> {
     // 判断是否是己方的翻译项（依据控制器当前源语言）
     final bool isSelf =
         item.sourceLanguageCode == controller.sourceLanguageCode.value;
+    // 新增：通话模式标记，用于控制右侧显示与隐藏中间态
+    final bool isCallMode = controller.currentMode.value == 'call';
 
     return GestureDetector(
       onTap: () => onToggleActionItem(item), // 触碰气泡时切换按钮显隐
       onLongPressStart: (details) =>
           onLongPressStart(context, isDarkMode, details, item),
       child: Align(
-        alignment: item.isIntermediate
-            ? Alignment.center
-            : (isSelf ? Alignment.centerLeft : Alignment.centerRight),
+        alignment: isCallMode
+            ? (isSelf ? Alignment.centerLeft : Alignment.centerRight)
+            : item.isIntermediate
+                ? Alignment.center
+                : (isSelf ? Alignment.centerLeft : Alignment.centerRight),
         child: Container(
           margin: EdgeInsets.only(bottom: 8.h),
           padding: EdgeInsets.all(12.w),

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

@@ -893,12 +893,14 @@ object BleService {
     // 统计接收到的字节数
             bytesReceivedInCurrentSecond += data.size
                     processAudioData(data)
+                    Log.i(TAG, "lxm--收到音频特征数据, 字节数=${data.size}")
                 }
                       BleConst.CALL_RECEIVE_AUDIO_CHAR_UUID -> {
                  
     // 统计接收到的字节数
             bytesReceivedInCurrentSecond += data.size
                     processAudioData(data)
+                    Log.i(TAG, "lxm--收到通话音频特征数据, 字节数=${data.size}")
                 }
                 // 通知特征数据（命令和控制）
                 BleConst.NOTIFY_CHAR_UUID -> {