add

local_plugins/agent_service/android/src/main/kotlin/com/yunqiinnovation/agent_service/AgentService.kt

@@ -985,4 +985,59 @@ object AgentService : CoroutineScope {
         
         return true
     }
+
+    /**
+     * 简单音频播放器，用于播放提示音等
+     */
+    class AudioPlayer(private val context: Context) {
+        private var mediaPlayer: MediaPlayer? = null
+        
+        /**
+         * 播放音频资源
+         * @param resId 资源ID
+         */
+        fun playAudio(resId: Int) {
+            try {
+                // 释放之前的资源
+                release()
+                
+                // 创建播放器并设置资源
+                mediaPlayer = MediaPlayer().apply {
+                    // 设置资源
+                    context.resources.openRawResourceFd(resId)?.use { fd ->
+                        setDataSource(fd.fileDescriptor, fd.startOffset, fd.length)
+                    }
+                    
+                    // 播放完成后自动释放资源
+                    setOnCompletionListener {
+                        release()
+                    }
+                    
+                    // 准备并播放
+                    prepare()
+                    start()
+                }
+                
+                FileLogger.d(TAG, "开始播放音频资源")
+            } catch (e: Exception) {
+                FileLogger.e(TAG, "播放音频资源异常: ${e.message}", e)
+                release()
+            }
+        }
+        
+        /**
+         * 释放资源
+         */
+        fun release() {
+            try {
+                mediaPlayer?.apply {
+                    if (isPlaying) stop()
+                    release()
+                }
+                mediaPlayer = null
+            } catch (e: Exception) {
+                // 忽略异常
+            }
+        }
+    }
 } 

local_plugins/open_ai_service/android/src/main/kotlin/com/yunqiinnovation/open_ai_service/OpenAIService.kt

@@ -355,7 +355,11 @@ class OpenAIService(private val context: Context? = null) {
             callback.onFunctionCallResult(functionCall, resultObj)
             
             // 发送结果到OpenAI继续对话
-            val resultContent = resultObj.optString("context", "工具调用失败")
+            val resultContent = if (resultObj.has("context") && resultObj.getString("context").isNotEmpty()) {
+                resultObj.getString("context")
+            } else {
+                "工具调用失败"
+            }
             sendFunctionCallResult(
                 messages = messages,
                 functionCall = functionCall,