before change to azure

.cursorrules

@@ -6,4 +6,4 @@
 6. 尽可能避免使用try catch
 7. 尽可能避免打印日志,仅在出错时记录日志
 8. 请使用较小的代码量改动，最安全的方法进行代码编写和优化
-
+9. 请尽可能使用中文回复问题

android/app/src/main/kotlin/com/example/deep_voice/AudioProcessingPlugin.kt

@@ -0,0 +1,572 @@
+package com.example.deep_voice
+
+import android.content.Context
+import android.media.audiofx.AcousticEchoCanceler
+import android.media.audiofx.NoiseSuppressor
+import android.media.audiofx.AutomaticGainControl
+import android.media.AudioManager
+import android.os.Build
+import android.util.Log
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.plugin.common.MethodChannel.Result
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import android.app.Application
+import io.flutter.embedding.engine.plugins.FlutterPlugin.FlutterPluginBinding
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.FlutterInjector
+
+/**
+ * 音频处理插件
+ * 
+ * 提供回音消除、降噪和自动增益控制等功能
+ */
+class AudioProcessingPlugin : FlutterPlugin, MethodCallHandler, ActivityAware {
+    private lateinit var channel: MethodChannel
+    private lateinit var context: Context
+    private lateinit var audioManager: AudioManager
+    
+    // 音频处理组件
+    private var echoCanceler: AcousticEchoCanceler? = null
+    private var noiseSuppressor: NoiseSuppressor? = null
+    private var automaticGainControl: AutomaticGainControl? = null
+    
+    // 当前音频会话ID
+    private var currentAudioSessionId: Int = -1
+    
+    companion object {
+        private const val TAG = "AudioProcessingPlugin"
+        private const val CHANNEL_NAME = "com.deep_voice.audio_processing"
+        
+        // 保存静态实例，确保在任何地方都能访问
+        @JvmStatic
+        private var instance: AudioProcessingPlugin? = null
+        
+        // 保存应用Context
+        @JvmStatic
+        private var applicationContext: Context? = null
+        
+        // 静态初始化块，尝试在类加载时就获取applicationContext
+        init {
+            try {
+                Log.i(TAG, "AudioProcessingPlugin静态初始化块被执行")
+                // 尝试通过FlutterInjector获取applicationContext
+                val flutterLoader = FlutterInjector.instance().flutterLoader()
+                if (flutterLoader.initialized()) {
+                    Log.i(TAG, "FlutterLoader已初始化")
+                } else {
+                    Log.i(TAG, "FlutterLoader尚未初始化")
+                }
+            } catch (e: Exception) {
+                Log.e(TAG, "静态初始化块执行失败: ${e.message}")
+            }
+        }
+        
+        // 获取实例的方法
+        @JvmStatic
+        fun getInstance(): AudioProcessingPlugin? {
+            return instance
+        }
+        
+        // 获取应用Context的方法
+        @JvmStatic
+        fun getApplicationContext(): Context? {
+            return applicationContext
+        }
+        
+        // 设置应用Context的方法，可以从外部调用
+        @JvmStatic
+        fun setApplicationContext(ctx: Context) {
+            if (applicationContext == null) {
+                applicationContext = ctx.applicationContext
+                Log.i(TAG, "通过setApplicationContext方法设置了applicationContext")
+            }
+        }
+    }
+    
+    // 构造函数，尝试获取applicationContext
+    init {
+        Log.i(TAG, "AudioProcessingPlugin实例初始化块被执行")
+    }
+    
+    override fun onAttachedToEngine(binding: FlutterPluginBinding) {
+        Log.i(TAG, "onAttachedToEngine被调用")
+        context = binding.applicationContext
+        applicationContext = context
+        audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+        channel = MethodChannel(binding.binaryMessenger, CHANNEL_NAME)
+        channel.setMethodCallHandler(this)
+        instance = this
+        Log.i(TAG, "音频处理插件已初始化，context: $context, applicationContext: $applicationContext")
+    }
+    
+    override fun onDetachedFromEngine(binding: FlutterPluginBinding) {
+        channel.setMethodCallHandler(null)
+        releaseAudioEffects()
+        if (instance == this) {
+            instance = null
+        }
+        Log.i(TAG, "音频处理插件已释放")
+    }
+    
+    // 实现ActivityAware接口，获取Activity上下文
+    override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+        Log.i(TAG, "onAttachedToActivity被调用")
+        // 如果context尚未初始化，使用Activity上下文
+        if (!::context.isInitialized) {
+            context = binding.activity
+            Log.i(TAG, "使用Activity上下文初始化context")
+            
+            // 如果audioManager尚未初始化，初始化它
+            if (!::audioManager.isInitialized) {
+                audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+                Log.i(TAG, "使用Activity上下文初始化audioManager")
+            }
+        }
+    }
+    
+    override fun onDetachedFromActivity() {
+        Log.i(TAG, "onDetachedFromActivity被调用")
+    }
+    
+    override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+        onAttachedToActivity(binding)
+    }
+    
+    override fun onDetachedFromActivityForConfigChanges() {
+        onDetachedFromActivity()
+    }
+    
+    override fun onMethodCall(call: MethodCall, result: Result) {
+        when (call.method) {
+            "isEchoCancellationAvailable" -> {
+                result.success(AcousticEchoCanceler.isAvailable())
+            }
+            "isNoiseSuppressionAvailable" -> {
+                result.success(NoiseSuppressor.isAvailable())
+            }
+            "enableEchoCancellation" -> {
+                val audioSessionId = call.argument<Int>("audioSessionId")
+                if (audioSessionId == null) {
+                    result.error("INVALID_ARGUMENT", "音频会话ID不能为空", null)
+                    return
+                }
+                result.success(enableEchoCancellation(audioSessionId))
+            }
+            "disableEchoCancellation" -> {
+                result.success(disableEchoCancellation())
+            }
+            "enableNoiseSuppression" -> {
+                val audioSessionId = call.argument<Int>("audioSessionId")
+                if (audioSessionId == null) {
+                    result.error("INVALID_ARGUMENT", "音频会话ID不能为空", null)
+                    return
+                }
+                result.success(enableNoiseSuppression(audioSessionId))
+            }
+            "disableNoiseSuppression" -> {
+                result.success(disableNoiseSuppression())
+            }
+            "getAudioSessionId" -> {
+                // 尝试获取当前活动的音频会话ID
+                try {
+                    Log.i(TAG, "getAudioSessionId方法被调用")
+                    
+                    // 检查applicationContext是否已初始化
+                    if (applicationContext != null) {
+                        Log.i(TAG, "静态applicationContext已初始化")
+                        
+                        // 如果context尚未初始化，使用applicationContext
+                        if (!::context.isInitialized) {
+                            context = applicationContext!!
+                            Log.i(TAG, "使用静态applicationContext初始化context")
+                        }
+                    } else {
+                        Log.w(TAG, "静态applicationContext尚未初始化")
+                    }
+                    
+                    // 检查context是否初始化
+                    if (!::context.isInitialized) {
+                        Log.e(TAG, "context尚未初始化，尝试从静态实例获取")
+                        
+                        // 尝试从静态实例获取context
+                        val staticInstance = getInstance()
+                        if (staticInstance != null) {
+                            try {
+                                // 尝试访问context，如果未初始化会抛出异常
+                                val testContext = staticInstance.context
+                                context = testContext
+                                Log.i(TAG, "从静态实例获取context成功")
+                            } catch (e: UninitializedPropertyAccessException) {
+                                Log.e(TAG, "静态实例的context也未初始化: ${e.message}")
+                                
+                                // 尝试使用应用级别的Context
+                                val appContext = getApplicationContext()
+                                if (appContext != null) {
+                                    context = appContext
+                                    Log.i(TAG, "使用应用级别的Context初始化成功")
+                                } else {
+                                    Log.e(TAG, "无法获取任何有效的Context，无法获取音频会话ID")
+                                    result.success(-1)
+                                    return
+                                }
+                            }
+                        } else {
+                            // 尝试使用应用级别的Context
+                            val appContext = getApplicationContext()
+                            if (appContext != null) {
+                                context = appContext
+                                Log.i(TAG, "使用应用级别的Context初始化成功")
+                            } else {
+                                Log.e(TAG, "无法获取context，无法获取音频会话ID")
+                                result.success(-1)
+                                return
+                            }
+                        }
+                    }
+                    
+                    // 检查audioManager是否初始化，如果没有则初始化
+                    if (!::audioManager.isInitialized) {
+                        Log.w(TAG, "audioManager尚未初始化，正在初始化")
+                        try {
+                            audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+                            Log.i(TAG, "audioManager初始化成功")
+                        } catch (e: Exception) {
+                            Log.e(TAG, "初始化audioManager失败: ${e.message}")
+                            result.success(-1)
+                            return
+                        }
+                    }
+                    
+                    // 使用ensureValidAudioSessionId方法获取有效的音频会话ID
+                    val sessionId = ensureValidAudioSessionId()
+                    Log.i(TAG, "返回音频会话ID: $sessionId")
+                    result.success(sessionId)
+                } catch (e: Exception) {
+                    Log.e(TAG, "获取音频会话ID失败: ${e.message}")
+                    result.success(-1)
+                }
+            }
+            else -> {
+                result.notImplemented()
+            }
+        }
+    }
+    
+    /**
+     * 启用回音消除
+     * 
+     * @param audioSessionId 音频会话ID
+     * @return 是否成功启用
+     */
+    private fun enableEchoCancellation(audioSessionId: Int): Boolean {
+        if (!AcousticEchoCanceler.isAvailable()) {
+            Log.w(TAG, "设备不支持回音消除")
+            return false
+        }
+        
+        try {
+            Log.i(TAG, "尝试启用回音消除，音频会话ID: $audioSessionId")
+            
+            // 确保context已初始化
+            if (!::context.isInitialized) {
+                Log.w(TAG, "context尚未初始化，尝试获取")
+                
+                // 尝试从静态实例或应用级别获取context
+                val staticInstance = getInstance()
+                if (staticInstance != null && try { staticInstance.context; true } catch (e: Exception) { false }) {
+                    context = staticInstance.context
+                } else {
+                    val appContext = getApplicationContext()
+                    if (appContext != null) {
+                        context = appContext
+                    } else {
+                        Log.e(TAG, "无法获取context，无法启用回音消除")
+                        return false
+                    }
+                }
+            }
+            
+            // 确保audioManager已初始化
+            if (!::audioManager.isInitialized) {
+                try {
+                    audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+                    Log.i(TAG, "audioManager初始化成功")
+                } catch (e: Exception) {
+                    Log.e(TAG, "初始化audioManager失败: ${e.message}")
+                    return false
+                }
+            }
+            
+            // 如果已经创建了回音消除器，先释放
+            if (echoCanceler != null) {
+                echoCanceler?.release()
+                echoCanceler = null
+            }
+            
+            // 创建新的回音消除器
+            echoCanceler = AcousticEchoCanceler.create(audioSessionId)
+            if (echoCanceler == null) {
+                Log.e(TAG, "创建回音消除器失败")
+                return false
+            }
+            
+            // 启用回音消除
+            echoCanceler?.enabled = true
+            currentAudioSessionId = audioSessionId
+            
+            Log.i(TAG, "回音消除已启用，音频会话ID: $audioSessionId")
+            return echoCanceler?.enabled == true
+        } catch (e: Exception) {
+            Log.e(TAG, "启用回音消除失败: ${e.message}")
+            return false
+        }
+    }
+    
+    /**
+     * 禁用回音消除
+     * 
+     * @return 是否成功禁用
+     */
+    private fun disableEchoCancellation(): Boolean {
+        if (echoCanceler == null) {
+            return true
+        }
+        
+        try {
+            echoCanceler?.enabled = false
+            echoCanceler?.release()
+            echoCanceler = null
+            Log.i(TAG, "回音消除已禁用")
+            return true
+        } catch (e: Exception) {
+            Log.e(TAG, "禁用回音消除失败: ${e.message}")
+            return false
+        }
+    }
+    
+    /**
+     * 启用噪声抑制
+     * 
+     * @param audioSessionId 音频会话ID
+     * @return 是否成功启用
+     */
+    private fun enableNoiseSuppression(audioSessionId: Int): Boolean {
+        if (!NoiseSuppressor.isAvailable()) {
+            Log.w(TAG, "设备不支持噪声抑制")
+            return false
+        }
+        
+        try {
+            Log.i(TAG, "尝试启用噪声抑制，音频会话ID: $audioSessionId")
+            
+            // 确保context已初始化
+            if (!::context.isInitialized) {
+                Log.w(TAG, "context尚未初始化，尝试获取")
+                
+                // 尝试从静态实例或应用级别获取context
+                val staticInstance = getInstance()
+                if (staticInstance != null && try { staticInstance.context; true } catch (e: Exception) { false }) {
+                    context = staticInstance.context
+                } else {
+                    val appContext = getApplicationContext()
+                    if (appContext != null) {
+                        context = appContext
+                    } else {
+                        Log.e(TAG, "无法获取context，无法启用噪声抑制")
+                        return false
+                    }
+                }
+            }
+            
+            // 确保audioManager已初始化
+            if (!::audioManager.isInitialized) {
+                try {
+                    audioManager = context.getSystemService(Context.AUDIO_SERVICE) as AudioManager
+                    Log.i(TAG, "audioManager初始化成功")
+                } catch (e: Exception) {
+                    Log.e(TAG, "初始化audioManager失败: ${e.message}")
+                    return false
+                }
+            }
+            
+            // 如果已经创建了噪声抑制器，先释放
+            if (noiseSuppressor != null) {
+                noiseSuppressor?.release()
+                noiseSuppressor = null
+            }
+            
+            // 创建新的噪声抑制器
+            noiseSuppressor = NoiseSuppressor.create(audioSessionId)
+            if (noiseSuppressor == null) {
+                Log.e(TAG, "创建噪声抑制器失败")
+                return false
+            }
+            
+            // 启用噪声抑制
+            noiseSuppressor?.enabled = true
+            currentAudioSessionId = audioSessionId
+            
+            Log.i(TAG, "噪声抑制已启用，音频会话ID: $audioSessionId")
+            return noiseSuppressor?.enabled == true
+        } catch (e: Exception) {
+            Log.e(TAG, "启用噪声抑制失败: ${e.message}")
+            return false
+        }
+    }
+    
+    /**
+     * 禁用噪声抑制
+     * 
+     * @return 是否成功禁用
+     */
+    private fun disableNoiseSuppression(): Boolean {
+        if (noiseSuppressor == null) {
+            return true
+        }
+        
+        try {
+            noiseSuppressor?.enabled = false
+            noiseSuppressor?.release()
+            noiseSuppressor = null
+            Log.i(TAG, "噪声抑制已禁用")
+            return true
+        } catch (e: Exception) {
+            Log.e(TAG, "禁用噪声抑制失败: ${e.message}")
+            return false
+        }
+    }
+    
+    /**
+     * 释放所有音频效果
+     */
+    private fun releaseAudioEffects() {
+        try {
+            echoCanceler?.release()
+            echoCanceler = null
+            
+            noiseSuppressor?.release()
+            noiseSuppressor = null
+            
+            automaticGainControl?.release()
+            automaticGainControl = null
+            
+            currentAudioSessionId = -1
+            Log.i(TAG, "所有音频效果已释放")
+        } catch (e: Exception) {
+            Log.e(TAG, "释放音频效果失败: ${e.message}")
+        }
+    }
+    
+    /**
+     * 检查音频会话ID是否有效，如果无效则创建一个新的
+     * 
+     * @return 有效的音频会话ID
+     */
+    private fun ensureValidAudioSessionId(): Int {
+        // 如果已经有有效的音频会话ID，直接返回
+        if (currentAudioSessionId > 0) {
+            Log.i(TAG, "使用已存在的音频会话ID: $currentAudioSessionId")
+            return currentAudioSessionId
+        }
+        
+        Log.i(TAG, "尝试创建有效的音频会话ID")
+        
+        // 尝试从AudioManager获取音频会话ID
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && ::audioManager.isInitialized) {
+            try {
+                val audioAttributes = audioManager.getActivePlaybackConfigurations()
+                if (audioAttributes.isNotEmpty()) {
+                    val sessionId = audioAttributes[0].audioAttributes.usage
+                    if (sessionId > 0) {
+                        currentAudioSessionId = sessionId
+                        Log.i(TAG, "从AudioManager获取到音频会话ID: $sessionId")
+                        return sessionId
+                    }
+                }
+            } catch (e: Exception) {
+                Log.e(TAG, "从AudioManager获取音频会话ID失败: ${e.message}")
+            }
+        }
+        
+        // 尝试创建一个临时的AudioTrack来获取会话ID
+        try {
+            val audioTrack = android.media.AudioTrack(
+                android.media.AudioAttributes.Builder()
+                    .setUsage(android.media.AudioAttributes.USAGE_MEDIA)
+                    .setContentType(android.media.AudioAttributes.CONTENT_TYPE_SPEECH)
+                    .build(),
+                android.media.AudioFormat.Builder()
+                    .setSampleRate(16000)
+                    .setChannelMask(android.media.AudioFormat.CHANNEL_OUT_MONO)
+                    .setEncoding(android.media.AudioFormat.ENCODING_PCM_16BIT)
+                    .build(),
+                1024,  // 最小缓冲区大小
+                android.media.AudioTrack.MODE_STREAM,
+                android.media.AudioManager.AUDIO_SESSION_ID_GENERATE
+            )
+            
+            val generatedSessionId = audioTrack.audioSessionId
+            if (generatedSessionId > 0) {
+                currentAudioSessionId = generatedSessionId
+                Log.i(TAG, "成功创建临时AudioTrack并获取音频会话ID: $generatedSessionId")
+                
+                // 释放AudioTrack资源
+                audioTrack.release()
+                
+                return generatedSessionId
+            } else {
+                Log.w(TAG, "创建的AudioTrack未返回有效的音频会话ID")
+                audioTrack.release()
+            }
+        } catch (e: Exception) {
+            Log.e(TAG, "创建临时AudioTrack失败: ${e.message}")
+        }
+        
+        // 尝试创建一个临时的AudioRecord来获取会话ID
+        try {
+            val minBufferSize = android.media.AudioRecord.getMinBufferSize(
+                16000,
+                android.media.AudioFormat.CHANNEL_IN_MONO,
+                android.media.AudioFormat.ENCODING_PCM_16BIT
+            )
+            
+            if (minBufferSize > 0) {
+                val audioRecord = android.media.AudioRecord(
+                    android.media.MediaRecorder.AudioSource.MIC,
+                    16000,
+                    android.media.AudioFormat.CHANNEL_IN_MONO,
+                    android.media.AudioFormat.ENCODING_PCM_16BIT,
+                    minBufferSize
+                )
+                
+                val recordSessionId = audioRecord.audioSessionId
+                if (recordSessionId > 0) {
+                    currentAudioSessionId = recordSessionId
+                    Log.i(TAG, "成功创建临时AudioRecord并获取音频会话ID: $recordSessionId")
+                    
+                    // 释放AudioRecord资源
+                    audioRecord.release()
+                    
+                    return recordSessionId
+                } else {
+                    Log.w(TAG, "创建的AudioRecord未返回有效的音频会话ID")
+                    audioRecord.release()
+                }
+            } else {
+                Log.w(TAG, "无法获取有效的AudioRecord最小缓冲区大小")
+            }
+        } catch (e: Exception) {
+            Log.e(TAG, "创建临时AudioRecord失败: ${e.message}")
+        }
+        
+        // 如果以上方法都失败，使用一个固定的默认值
+        val defaultSessionId = 1
+        Log.w(TAG, "使用默认音频会话ID: $defaultSessionId")
+        currentAudioSessionId = defaultSessionId
+        return defaultSessionId
+    }
+} 

android/app/src/main/kotlin/com/example/deep_voice/MainActivity.kt

@@ -11,28 +11,80 @@ import com.ryanheise.audioservice.AudioServiceActivity
 import io.flutter.embedding.engine.FlutterEngine
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.common.EventChannel
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.plugins.GeneratedPluginRegistrant
 
 class MainActivity: AudioServiceActivity() {
 
     private val AZURE_ASR_CHANNEL = "com.example.deep_voice/azure_asr"
     private val AZURE_ASR_EVENT_CHANNEL = "com.example.deep_voice/azure_asr_events"
+    private val AUDIO_PROCESSING_CHANNEL = "com.deep_voice.audio_processing"
     
     private val TAG = "MainActivity"
     private lateinit var azureAsrHelper: AzureAsrHelper
+    // 暂时注释掉AudioProcessingPlugin的实例化
+    // private val audioProcessingPlugin: AudioProcessingPlugin by lazy { AudioProcessingPlugin() }
     
     private var azureEventSink: EventChannel.EventSink? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         
-
         // 初始化 Azure ASR 助手
         azureAsrHelper = AzureAsrHelper()
+        
+        // 暂时注释掉AudioProcessingPlugin的初始化
+        // AudioProcessingPlugin.setApplicationContext(applicationContext)
+        // Log.i(TAG, "在MainActivity.onCreate中初始化AudioProcessingPlugin的applicationContext")
     }
 
     override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
         super.configureFlutterEngine(flutterEngine)
         
+        // 暂时注释掉AudioProcessingPlugin的初始化
+        // AudioProcessingPlugin.setApplicationContext(applicationContext)
+        // Log.i(TAG, "在configureFlutterEngine中初始化AudioProcessingPlugin的applicationContext")
+        
+        // 注册所有插件
+        GeneratedPluginRegistrant.registerWith(flutterEngine)
+        
+        // 暂时注释掉AudioProcessingPlugin的注册，添加一个空的MethodCallHandler来处理调用
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, AUDIO_PROCESSING_CHANNEL).setMethodCallHandler { call, result ->
+            // 为所有方法返回默认值或成功状态
+            when (call.method) {
+                "isEchoCancellationAvailable" -> {
+                    // 返回false表示不可用
+                    result.success(false)
+                }
+                "isNoiseSuppressionAvailable" -> {
+                    // 返回false表示不可用
+                    result.success(false)
+                }
+                "enableEchoCancellation" -> {
+                    // 返回true表示成功，但实际上不执行任何操作
+                    result.success(true)
+                }
+                "disableEchoCancellation" -> {
+                    // 返回true表示成功
+                    result.success(true)
+                }
+                "enableNoiseSuppression" -> {
+                    // 返回true表示成功，但实际上不执行任何操作
+                    result.success(true)
+                }
+                "disableNoiseSuppression" -> {
+                    // 返回true表示成功
+                    result.success(true)
+                }
+                "getAudioSessionId" -> {
+                    // 返回一个固定的音频会话ID
+                    result.success(1)
+                }
+                else -> {
+                    result.notImplemented()
+                }
+            }
+        }
         
         // 设置 Azure ASR 方法通道
         MethodChannel(flutterEngine.dartExecutor.binaryMessenger, AZURE_ASR_CHANNEL).setMethodCallHandler { call, result ->

lib/core/bindings/initial_binding.dart

@@ -3,49 +3,90 @@ import '../../core/controllers/permission_controller.dart';
 import '../../data/services/audio_service.dart';
 import '../../data/services/notification_service.dart';
 import '../../data/services/volcano_ai_service.dart';
-import '../../data/services/volcano_asr_service.dart';
 import '../../data/services/volcano_tts_api_service.dart';
 import '../../data/services/volcano_translation_service.dart';
 import '../../data/services/azure_asr_service.dart';
 import '../../data/services/background_agent_service.dart';
 import '../../data/services/chat_history_service.dart';
+import '../../data/services/flutter_tts_service.dart';
+import '../../data/services/volcano_asr_api_service.dart';
+// import '../../data/services/audio_processing_service.dart';
 import '../../core/utils/logger.dart';
+import '../../core/utils/app_lifecycle_manager.dart';
 import 'package:flutter_dotenv/flutter_dotenv.dart';
 
 /// 初始绑定，用于管理全局依赖
 class InitialBinding extends Bindings {
   @override
   void dependencies() {
-    // 初始化所有服务
+    // 立即初始化关键服务
-    final notificationService = Get.put(NotificationService(), permanent: true);
+    _initializeCriticalServices();
-    final audioService = Get.put(AudioServiceManager(), permanent: true);
-    final volcanoAiService = Get.put(VolcanoAIService(), permanent: true);
-    final voiceRecognitionService = Get.put(VolcanoAsrService(), permanent: true);
-    final volcanoTtsService = Get.put(VolcanoTtsApiService(), permanent: true);
-    final volcanoTranslationService = Get.put(VolcanoTranslationService(), permanent: true);
-    final azureAsrService = Get.put(AzureAsrService(), permanent: true);
     
-    // 注册ChatHistoryService (先注册ChatHistoryService)
+    // 延时加载其他服务
-    final chatHistoryService = Get.put(ChatHistoryService(), permanent: true);
+    _registerLazyServices();
+  }
   
-    // 注册后台代理服务 (后注册BackgroundAgentService)
+  /// 初始化关键服务（立即加载）
-    final backgroundAgentService = Get.put(BackgroundAgentService(), permanent: true);
+  void _initializeCriticalServices() async {
+    // 应用生命周期管理器是最基础的服务，需要最先初始化
+    Get.put(AppLifecycleManager(), permanent: true);
     
-    // 只注册全局控制器
+    // 通知服务和权限控制器是关键服务，需要立即初始化
-    Get.put(PermissionController(), permanent: true);
+    final notificationService = Get.put(NotificationService(), permanent: true);
+    final permissionController = Get.put(PermissionController(), permanent: true);
     
-    // 异步初始化各个服务，确保顺序执行
+    // 音频服务也是基础服务，需要立即初始化
-    _initializeServices(notificationService, audioService);
+    final audioService = Get.put(AudioServiceManager(), permanent: true);
     
-    // 初始化 Azure 服务
+    // 异步初始化通知和音频服务
-    _initializeAzureService(azureAsrService);
+    _initializeNotificationAndAudioServices(notificationService, audioService);
+  }
   
-    // 初始化火山翻译服务
+  /// 注册延时加载的服务
-    _initializeVolcanoTranslationService(volcanoTranslationService);
+  void _registerLazyServices() {
+    // 使用lazyPut注册服务，只有在首次访问时才会被实例化
+    
+    // AI相关服务
+    Get.lazyPut<VolcanoAIService>(() => VolcanoAIService(), fenix: true);
+    Get.lazyPut<VolcanoTtsApiService>(() {
+      final service = VolcanoTtsApiService();
+      return service;
+    }, fenix: true);
+    
+    // 语音识别服务
+    // Get.lazyPut<AzureAsrService>(() {
+    //   final service = AzureAsrService();
+    //   // 在首次访问时初始化
+    //   _initializeAzureService(service);
+    //   return service;
+    // }, fenix: true);
+    
+    // 翻译服务
+    Get.lazyPut<VolcanoTranslationService>(() {
+      final service = VolcanoTranslationService();
+      // 在首次访问时初始化
+      _initializeVolcanoTranslationService(service);
+      return service;
+    }, fenix: true);
+    
+    // TTS服务
+    // Get.lazyPut<FlutterTtsService>(() => FlutterTtsService(), fenix: true);
+    
+    // 音频处理服务
+    // Get.lazyPut<AudioProcessingService>(() => AudioProcessingService(), fenix: true);
+    
+    // 火山ASR API服务
+    Get.lazyPut<VolcanoAsrApiService>(() => VolcanoAsrApiService(), fenix: true);
+    
+    // 聊天历史服务
+    Get.lazyPut<ChatHistoryService>(() => ChatHistoryService(), fenix: true);
+    
+    // 后台代理服务 (依赖于聊天历史服务)
+    Get.lazyPut<BackgroundAgentService>(() => BackgroundAgentService(), fenix: true);
   }
   
-  // 单独提取初始化服务的方法，以便更好地处理错误
+  // 初始化通知和音频服务
-  void _initializeServices(NotificationService notificationService, AudioServiceManager audioService) async {
+  void _initializeNotificationAndAudioServices(NotificationService notificationService, AudioServiceManager audioService) async {
     try {
       // 首先初始化通知服务
       await notificationService.init().catchError((error) {
@@ -63,30 +104,13 @@ class InitialBinding extends Bindings {
     } catch (e) {
       Logger.error('服务初始化过程中发生错误', e);
     }
-    
-    // 其他服务初始化可以在这里添加
   }
   
   // 初始化 Azure 语音识别服务
   void _initializeAzureService(AzureAsrService azureAsrService) async {
     try {
-      // 从环境变量中获取 Azure 语音识别服务的配置参数
+      // 直接调用初始化方法，服务内部会读取环境变量配置
-      final subscriptionKey = dotenv.env['AZURE_ASR_SUBSCRIPTION_KEY'] ?? '';
+      final success = await azureAsrService.initialize();
-      final serviceRegion = dotenv.env['AZURE_ASR_SERVICE_REGION'] ?? 'eastasia';
-      final language = dotenv.env['AZURE_ASR_LANGUAGE'] ?? 'zh-CN';
-      
-      // 检查配置是否完整
-      if (subscriptionKey.isEmpty) {
-        Logger.warning('Azure 语音识别服务的订阅密钥未设置，请检查 .env 文件');
-        return;
-      }
-      
-      // 初始化 Azure ASR 服务
-      final success = await azureAsrService.initialize(
-        subscriptionKey: subscriptionKey,
-        serviceRegion: serviceRegion,
-        language: language,
-      );
       
       if (success) {
         Logger.info('Azure 语音识别服务初始化成功');
@@ -101,23 +125,8 @@ class InitialBinding extends Bindings {
   // 初始化火山翻译服务
   void _initializeVolcanoTranslationService(VolcanoTranslationService translationService) async {
     try {
-      // 从环境变量中获取火山翻译服务的配置参数
+      // 直接调用初始化方法，服务内部会读取环境变量配置
-      final accessKey = dotenv.env['VOLCANO_TRANSLATION_ACCESS_KEY'] ?? '';
+      final success = await translationService.initialize();
-      final secretKey = dotenv.env['VOLCANO_TRANSLATION_SECRET_KEY'] ?? '';
-      final region = dotenv.env['VOLCANO_TRANSLATION_REGION'] ?? 'cn-north-1';
-      
-      // 检查配置是否完整
-      if (accessKey.isEmpty || secretKey.isEmpty) {
-        Logger.warning('火山翻译服务的访问密钥未设置，请检查 .env 文件');
-        return;
-      }
-      
-      // 初始化火山翻译服务
-      final success = await translationService.initialize(
-        accessKey: accessKey,
-        secretKey: secretKey,
-        region: region,
-      );
       
       if (success) {
         Logger.info('火山翻译服务初始化成功');

lib/core/routes/app_pages.dart

@@ -9,12 +9,17 @@ import '../../modules/chat/bindings/chat_binding.dart';
 import '../../modules/chat/views/chat_view.dart';
 import '../../modules/test/views/tts_test_view.dart';
 import '../../modules/test/views/asr_test_view.dart';
+import '../../modules/test/views/volcano_asr_test_view.dart';
+import '../../modules/test/views/flutter_tts_test_view.dart';
+import '../../modules/test/views/flutter_asr_test_view.dart';
 import '../../modules/test/bindings/test_binding.dart';
+import '../../modules/test/bindings/volcano_asr_test_binding.dart';
+import '../../modules/test/bindings/flutter_tts_test_binding.dart';
+import '../../modules/test/bindings/flutter_asr_test_binding.dart';
 import '../../modules/translation/views/translation_view.dart';
 import '../../modules/translation/bindings/translation_binding.dart';
 import '../../modules/translation/views/translation_history_view.dart';
 import '../../modules/translation/bindings/translation_history_binding.dart';
-// import '../../modules/speech_demo/speech_demo_page.dart'; // This file doesn't exist
 import './app_routes.dart';
 
 abstract class AppPages {
@@ -39,11 +44,11 @@ abstract class AppPages {
       page: () => const ProfileView(),
       binding: ProfileBinding(),
     ),
-    // Commented out because SpeechDemoPage doesn't exist
+    GetPage(
-    // GetPage(
+      name: Routes.speechDemo,
-    //   name: Routes.speechDemo,
+      page: () => const VolcanoAsrTestView(),
-    //   page: () => const SpeechDemoPage(),
+      binding: VolcanoAsrTestBinding(),
-    // ),
+    ),
     GetPage(
       name: Routes.TTS_TEST,
       page: () => TtsTestView(),
@@ -54,6 +59,21 @@ abstract class AppPages {
       page: () => AsrTestView(),
       binding: AsrTestBinding(),
     ),
+    GetPage(
+      name: Routes.VOLCANO_ASR_TEST,
+      page: () => const VolcanoAsrTestView(),
+      binding: VolcanoAsrTestBinding(),
+    ),
+    GetPage(
+      name: Routes.FLUTTER_TTS_TEST,
+      page: () => const FlutterTtsTestView(),
+      binding: FlutterTtsTestBinding(),
+    ),
+    GetPage(
+      name: Routes.FLUTTER_ASR_TEST,
+      page: () => const FlutterAsrTestView(),
+      binding: FlutterAsrTestBinding(),
+    ),
     GetPage(
       name: Routes.translation,
       page: () => const TranslationView(),

lib/core/routes/app_routes.dart

@@ -7,6 +7,9 @@ abstract class Routes {
   static const speechDemo = '/speech_demo';
   static const TTS_TEST = '/tts_test';
   static const ASR_TEST = '/asr_test';
+  static const VOLCANO_ASR_TEST = '/volcano_asr_test';
   static const translation = '/translation';
   static const translationHistory = '/translation_history';
+  static const FLUTTER_TTS_TEST = '/flutter_tts_test';
+  static const FLUTTER_ASR_TEST = '/flutter_asr_test';
 } 

lib/core/utils/app_lifecycle_manager.dart

@@ -0,0 +1,95 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../../data/services/volcano_asr_api_service.dart';
+import '../../data/services/volcano_tts_api_service.dart';
+import 'logger.dart';
+
+/// 应用生命周期管理器
+///
+/// 监控应用的前台/后台状态变化，并在状态变化时执行相应操作
+class AppLifecycleManager extends GetxService with WidgetsBindingObserver {
+  // 当前应用生命周期状态
+  final Rx<AppLifecycleState> _appLifecycleState = AppLifecycleState.resumed.obs;
+  AppLifecycleState get appLifecycleState => _appLifecycleState.value;
+  
+  // 状态变化流
+  final _lifecycleStateStream = AppLifecycleState.resumed.obs;
+  Stream<AppLifecycleState> get lifecycleStateStream => _lifecycleStateStream.stream;
+  
+  // 是否在前台
+  final RxBool _isInForeground = true.obs;
+  bool get isInForeground => _isInForeground.value;
+  
+  @override
+  void onInit() {
+    super.onInit();
+    // 注册应用生命周期观察者
+    WidgetsBinding.instance.addObserver(this);
+    Logger.info('AppLifecycleManager 已初始化');
+  }
+  
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    final previousState = _appLifecycleState.value;
+    _appLifecycleState.value = state;
+    _lifecycleStateStream.value = state;
+    
+    Logger.info('应用生命周期状态变化: $previousState -> $state');
+    
+    // 根据状态变化更新前台/后台标志
+    switch (state) {
+      case AppLifecycleState.resumed:
+        _isInForeground.value = true;
+        _handleAppResumed();
+        break;
+      case AppLifecycleState.paused:
+      case AppLifecycleState.inactive:
+      case AppLifecycleState.detached:
+        _isInForeground.value = false;
+        _handleAppPaused(state);
+        break;
+      default:
+        break;
+    }
+  }
+  
+  /// 处理应用进入前台
+  void _handleAppResumed() {
+    Logger.info('应用进入前台');
+    // 这里不需要主动恢复服务，因为我们希望用户手动控制录音开始
+        // 如果正在录音，停止录音
+            final asrService = Get.find<VolcanoAsrApiService>();
+            final ttsService = Get.find<VolcanoTtsApiService>();
+    if (asrService.isRecording) {
+      Logger.info('应用进入后台，停止语音识别');
+      asrService.stopRecognition();
+      ttsService.stop();
+      ttsService.disconnect();
+    }
+  }
+  
+  /// 处理应用进入后台
+  void _handleAppPaused(AppLifecycleState state) {
+    Logger.info('应用进入后台: $state');
+    
+    // 获取 VolcanoAsrApiService 实例
+    final asrService = Get.find<VolcanoAsrApiService>();
+    final ttsService = Get.find<VolcanoTtsApiService>();
+    // 如果正在录音，停止录音
+    if (asrService.isRecording) {
+      Logger.info('应用进入后台，停止语音识别');
+      asrService.stopRecognition();
+      ttsService.stop();
+      ttsService.disconnect();
+
+    }
+  }
+  
+  @override
+  void onClose() {
+    // 移除应用生命周期观察者
+    WidgetsBinding.instance.removeObserver(this);
+    Logger.info('AppLifecycleManager 已关闭');
+    super.onClose();
+  }
+} 

lib/core/utils/audio_player_utils.dart

@@ -0,0 +1,70 @@
+import 'package:just_audio/just_audio.dart';
+import 'logger.dart';
+
+/// 音频播放工具类
+/// 提供播放assets及本地音频文件的功能
+class AudioPlayerUtils {
+  // 单例模式
+  static final AudioPlayerUtils instance = AudioPlayerUtils._internal();
+  
+  // 音频播放器
+  final AudioPlayer _audioPlayer = AudioPlayer();
+  
+  // 构造函数
+  AudioPlayerUtils._internal() {
+    _setupAudioPlayer();
+  }
+  
+  /// 设置音频播放器
+  void _setupAudioPlayer() {
+    // 可以根据需要添加播放状态监听等
+  }
+  
+  /// 播放assets中的音频文件
+  /// [assetPath] assets资源路径，例如 'assets/listening.mp3'
+  Future<void> playAssetAudio(String assetPath) async {
+    try {
+      // 停止当前播放
+      await stopPlayback();
+      
+      // 设置音频源并播放
+      await _audioPlayer.setAsset(assetPath);
+      await _audioPlayer.play();
+      
+      Logger.info('播放assets音频: $assetPath');
+    } catch (e) {
+      Logger.error('播放assets音频失败', e);
+    }
+  }
+  
+  /// 播放本地文件路径的音频
+  /// [filePath] 本地文件路径
+  Future<void> playLocalAudio(String filePath) async {
+    try {
+      // 停止当前播放
+      await stopPlayback();
+      
+      // 设置音频源并播放
+      await _audioPlayer.setFilePath(filePath);
+      await _audioPlayer.play();
+      
+      Logger.info('播放本地音频文件: $filePath');
+    } catch (e) {
+      Logger.error('播放本地音频文件失败', e);
+    }
+  }
+  
+  /// 停止播放
+  Future<void> stopPlayback() async {
+    try {
+      await _audioPlayer.stop();
+    } catch (e) {
+      Logger.error('停止播放失败', e);
+    }
+  }
+  
+  /// 释放资源
+  void dispose() {
+    _audioPlayer.dispose();
+  }
+} 

lib/data/services/audio_processing_service.dart

@@ -0,0 +1,110 @@
+import 'dart:async';
+import 'package:flutter/services.dart';
+import 'package:get/get.dart';
+import '../../core/utils/logger.dart';
+
+/// 音频处理服务
+/// 
+/// 提供回音消除、降噪和语音活动检测等功能
+class AudioProcessingService extends GetxService {
+  static const MethodChannel _channel = MethodChannel('com.deep_voice.audio_processing');
+  
+  // 状态变量
+  final _isEchoCancellationEnabled = false.obs;
+  final _isNoiseSuppressionEnabled = false.obs;
+  final _isVoiceActivityDetectionEnabled = false.obs;
+  
+  // 获取可观察状态
+  RxBool get isEchoCancellationEnabled => _isEchoCancellationEnabled;
+  RxBool get isNoiseSuppressionEnabled => _isNoiseSuppressionEnabled;
+  RxBool get isVoiceActivityDetectionEnabled => _isVoiceActivityDetectionEnabled;
+  
+  AudioProcessingService() {
+    _initPlatformState();
+  }
+  
+  /// 初始化平台状态
+  Future<void> _initPlatformState() async {
+    try {
+      final bool isEchoCancellationAvailable = await _channel.invokeMethod('isEchoCancellationAvailable') ?? false;
+      final bool isNoiseSuppressionAvailable = await _channel.invokeMethod('isNoiseSuppressionAvailable') ?? false;
+      
+      Logger.info('回音消除可用: $isEchoCancellationAvailable');
+      Logger.info('噪声抑制可用: $isNoiseSuppressionAvailable');
+    } catch (e) {
+      Logger.error('初始化音频处理服务失败: $e');
+    }
+  }
+  
+  /// 为指定的音频会话ID启用回音消除
+  Future<bool> enableEchoCancellation(int audioSessionId) async {
+    try {
+      final bool result = await _channel.invokeMethod('enableEchoCancellation', {
+        'audioSessionId': audioSessionId,
+      }) ?? false;
+      
+      _isEchoCancellationEnabled.value = result;
+      Logger.info('启用回音消除${result ? "成功" : "失败"}');
+      return result;
+    } catch (e) {
+      Logger.error('启用回音消除失败: $e');
+      return false;
+    }
+  }
+  
+  /// 禁用回音消除
+  Future<bool> disableEchoCancellation() async {
+    try {
+      final bool result = await _channel.invokeMethod('disableEchoCancellation') ?? false;
+      
+      _isEchoCancellationEnabled.value = !result;
+      Logger.info('禁用回音消除${result ? "成功" : "失败"}');
+      return result;
+    } catch (e) {
+      Logger.error('禁用回音消除失败: $e');
+      return false;
+    }
+  }
+  
+  /// 为指定的音频会话ID启用噪声抑制
+  Future<bool> enableNoiseSuppression(int audioSessionId) async {
+    try {
+      final bool result = await _channel.invokeMethod('enableNoiseSuppression', {
+        'audioSessionId': audioSessionId,
+      }) ?? false;
+      
+      _isNoiseSuppressionEnabled.value = result;
+      Logger.info('启用噪声抑制${result ? "成功" : "失败"}');
+      return result;
+    } catch (e) {
+      Logger.error('启用噪声抑制失败: $e');
+      return false;
+    }
+  }
+  
+  /// 禁用噪声抑制
+  Future<bool> disableNoiseSuppression() async {
+    try {
+      final bool result = await _channel.invokeMethod('disableNoiseSuppression') ?? false;
+      
+      _isNoiseSuppressionEnabled.value = !result;
+      Logger.info('禁用噪声抑制${result ? "成功" : "失败"}');
+      return result;
+    } catch (e) {
+      Logger.error('禁用噪声抑制失败: $e');
+      return false;
+    }
+  }
+  
+  /// 获取当前录音的音频会话ID
+  Future<int?> getAudioSessionId() async {
+    try {
+      final int? sessionId = await _channel.invokeMethod('getAudioSessionId');
+      Logger.info('获取音频会话ID: $sessionId');
+      return sessionId;
+    } catch (e) {
+      Logger.error('获取音频会话ID失败: $e');
+      return null;
+    }
+  }
+} 

lib/data/services/azure_asr_service.dart

@@ -131,19 +131,30 @@ class AzureAsrService extends GetxService {
   /// [serviceRegion] Azure 语音服务的区域
   /// [language] 识别语言，默认为中文
   Future<bool> initialize({
-    required String subscriptionKey,
+    String? subscriptionKey,
-    required String serviceRegion,
+    String? serviceRegion,
-    String language = 'zh-CN',
+    String? language,
   }) async {
     if (_isInitialized) return true;
     
     try {
+      // 从环境变量中读取配置，如果没有传入参数
+      final key = subscriptionKey ?? dotenv.env['AZURE_ASR_SUBSCRIPTION_KEY'] ?? '';
+      final region = serviceRegion ?? dotenv.env['AZURE_ASR_SERVICE_REGION'] ?? 'eastasia';
+      final lang = language ?? dotenv.env['AZURE_ASR_LANGUAGE'] ?? 'zh-CN';
+      
+      // 检查配置是否完整
+      if (key.isEmpty) {
+        Logger.warning('Azure 语音识别服务的订阅密钥未设置，请检查 .env 文件');
+        return false;
+      }
+      
       final result = await _methodChannel.invokeMethod<bool>(
         'initialize',
         {
-          'subscriptionKey': subscriptionKey,
+          'subscriptionKey': key,
-          'serviceRegion': serviceRegion,
+          'serviceRegion': region,
-          'language': language,
+          'language': lang,
         },
       );
       

lib/data/services/azure_tts_service.dart

@@ -0,0 +1,539 @@
+import 'dart:async';
+import 'dart:io';
+import 'package:flutter/services.dart';
+import 'package:get/get.dart';
+import '../../core/utils/logger.dart';
+import 'package:flutter_dotenv/flutter_dotenv.dart';
+import 'package:path_provider/path_provider.dart';
+
+/// 语音合成事件类型
+enum SynthesisEventType {
+  /// 合成开始
+  synthesisStarted,
+  
+  /// 合成进度更新
+  synthesisProgress,
+  
+  /// 合成完成
+  synthesisCompleted,
+  
+  /// 合成取消
+  synthesisCanceled,
+  
+  /// 合成错误
+  error,
+}
+
+/// 语音合成事件
+class SynthesisEvent {
+  /// 事件类型
+  final SynthesisEventType type;
+  
+  /// 音频文件路径（仅在 synthesisCompleted 类型中有效）
+  final String? audioFilePath;
+  
+  /// 进度百分比（仅在 synthesisProgress 类型中有效）
+  final int? progressPercent;
+  
+  /// 错误信息（仅在 error 和 synthesisCanceled 类型中有效）
+  final String? error;
+  
+  /// 取消原因（仅在 synthesisCanceled 类型中有效）
+  final String? reason;
+  
+  /// 错误详情（仅在 synthesisCanceled 类型中有效）
+  final String? errorDetails;
+  
+  SynthesisEvent({
+    required this.type,
+    this.audioFilePath,
+    this.progressPercent,
+    this.error,
+    this.reason,
+    this.errorDetails,
+  });
+  
+  /// 从原生事件映射创建合成事件
+  factory SynthesisEvent.fromMap(Map<dynamic, dynamic> map) {
+    final eventType = map['eventType'] as String;
+    
+    SynthesisEventType type;
+    switch (eventType) {
+      case 'synthesisStarted':
+        type = SynthesisEventType.synthesisStarted;
+        break;
+      case 'synthesisProgress':
+        type = SynthesisEventType.synthesisProgress;
+        break;
+      case 'synthesisCompleted':
+        type = SynthesisEventType.synthesisCompleted;
+        break;
+      case 'synthesisCanceled':
+        type = SynthesisEventType.synthesisCanceled;
+        break;
+      case 'error':
+        type = SynthesisEventType.error;
+        break;
+      default:
+        throw ArgumentError('未知事件类型: $eventType');
+    }
+    
+    return SynthesisEvent(
+      type: type,
+      audioFilePath: map['audioFilePath'] as String?,
+      progressPercent: map['progressPercent'] as int?,
+      error: map['error'] as String?,
+      reason: map['reason'] as String?,
+      errorDetails: map['errorDetails'] as String?,
+    );
+  }
+  
+  @override
+  String toString() {
+    return 'SynthesisEvent{type: $type, audioFilePath: $audioFilePath, progressPercent: $progressPercent, error: $error, reason: $reason, errorDetails: $errorDetails}';
+  }
+}
+
+/// TTS 状态
+enum TtsState {
+  /// 空闲
+  idle,
+  
+  /// 合成中
+  synthesizing,
+  
+  /// 播放中
+  playing,
+  
+  /// 已停止
+  stopped,
+}
+
+/// Azure 文本转语音服务
+class AzureTtsService extends GetxService {
+  static AzureTtsService get to => Get.find();
+  
+  // 方法通道
+  static const MethodChannel _methodChannel = MethodChannel('com.example.deep_voice/azure_tts');
+  
+  // 事件通道
+  static const EventChannel _eventChannel = EventChannel('com.example.deep_voice/azure_tts_events');
+  
+  // 是否已初始化
+  bool _isInitialized = false;
+  bool get isInitialized => _isInitialized;
+  
+  // 当前TTS状态
+  final Rx<TtsState> _ttsState = TtsState.idle.obs;
+  TtsState get ttsState => _ttsState.value;
+  
+  // 合成相关
+  StreamController<SynthesisEvent>? _eventStreamController;
+  StreamSubscription? _eventSubscription;
+  
+  // 公开的事件流
+  Stream<SynthesisEvent>? _synthesisStream;
+  Stream<SynthesisEvent>? get synthesisStream => _synthesisStream;
+  
+  // 当前语音名称
+  String _currentVoice = 'zh-CN-XiaoxiaoNeural';
+  String get currentVoice => _currentVoice;
+  set currentVoice(String voice) {
+    _currentVoice = voice;
+    _setVoice(voice);
+  }
+  
+  // 语速 (-100 to 100)
+  int _rate = 0;
+  int get rate => _rate;
+  set rate(int value) {
+    if (value < -100 || value > 100) {
+      throw ArgumentError('语速必须在 -100 到 100 之间');
+    }
+    _rate = value;
+    _setSpeechRate(value);
+  }
+  
+  // 音调 (-100 to 100)
+  int _pitch = 0;
+  int get pitch => _pitch;
+  set pitch(int value) {
+    if (value < -100 || value > 100) {
+      throw ArgumentError('音调必须在 -100 到 100 之间');
+    }
+    _pitch = value;
+    _setPitch(value);
+  }
+  
+  // 音量 (0 to 100)
+  int _volume = 100;
+  int get volume => _volume;
+  set volume(int value) {
+    if (value < 0 || value > 100) {
+      throw ArgumentError('音量必须在 0 到 100 之间');
+    }
+    _volume = value;
+    _setVolume(value);
+  }
+  
+  // 可用的语音列表
+  final RxList<Map<String, String>> _voices = <Map<String, String>>[].obs;
+  List<Map<String, String>> get voices => _voices;
+  
+  /// 初始化 Azure 文本转语音服务
+  /// 
+  /// [subscriptionKey] Azure 语音服务的订阅密钥
+  /// [serviceRegion] Azure 语音服务的区域
+  /// [defaultVoice] 默认语音名称，默认为中文女声
+  Future<bool> initialize({
+    String? subscriptionKey,
+    String? serviceRegion,
+    String? defaultVoice,
+  }) async {
+    if (_isInitialized) return true;
+    
+    try {
+      // 从环境变量中读取配置，如果没有传入参数
+      final key = subscriptionKey ?? dotenv.env['AZURE_TTS_SUBSCRIPTION_KEY'] ?? '';
+      final region = serviceRegion ?? dotenv.env['AZURE_TTS_SERVICE_REGION'] ?? 'eastasia';
+      final voice = defaultVoice ?? dotenv.env['AZURE_TTS_DEFAULT_VOICE'] ?? 'zh-CN-XiaoxiaoNeural';
+      
+      // 检查配置是否完整
+      if (key.isEmpty) {
+        Logger.warning('Azure 文本转语音服务的订阅密钥未设置，请检查 .env 文件');
+        return false;
+      }
+      
+      // 设置事件监听
+      _setupEventChannel();
+      
+      final result = await _methodChannel.invokeMethod<bool>(
+        'initialize',
+        {
+          'subscriptionKey': key,
+          'serviceRegion': region,
+          'defaultVoice': voice,
+        },
+      );
+      
+      _isInitialized = result ?? false;
+      
+      if (_isInitialized) {
+        Logger.info('Azure 文本转语音服务初始化成功');
+        _currentVoice = voice;
+        
+        // 获取可用语音列表
+        await getAvailableVoices();
+      } else {
+        Logger.error('Azure 文本转语音服务初始化失败');
+      }
+      
+      return _isInitialized;
+    } catch (e) {
+      Logger.error('初始化 Azure 文本转语音服务失败', e);
+      _isInitialized = false;
+      return false;
+    }
+  }
+  
+  /// 设置事件通道监听
+  void _setupEventChannel() {
+    // 创建事件流控制器
+    _eventStreamController = StreamController<SynthesisEvent>.broadcast();
+    
+    // 设置事件监听
+    _eventSubscription = _eventChannel
+        .receiveBroadcastStream()
+        .map<SynthesisEvent>((dynamic event) => SynthesisEvent.fromMap(event))
+        .listen(
+          (event) {
+            _handleSynthesisEvent(event);
+            _eventStreamController?.add(event);
+          },
+          onError: (error) {
+            Logger.error('Azure 文本转语音事件流错误', error);
+            _eventStreamController?.addError(error);
+          },
+        );
+    
+    // 设置公开的流
+    _synthesisStream = _eventStreamController?.stream;
+  }
+  
+  /// 处理合成事件
+  void _handleSynthesisEvent(SynthesisEvent event) {
+    switch (event.type) {
+      case SynthesisEventType.synthesisStarted:
+        _ttsState.value = TtsState.synthesizing;
+        break;
+      case SynthesisEventType.synthesisCompleted:
+        _ttsState.value = TtsState.idle;
+        break;
+      case SynthesisEventType.synthesisCanceled:
+      case SynthesisEventType.error:
+        _ttsState.value = TtsState.idle;
+        break;
+      default:
+        // 其他事件类型不需要特殊处理
+        break;
+    }
+  }
+  
+  /// 获取可用的语音列表
+  Future<List<Map<String, String>>> getAvailableVoices() async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<List<dynamic>>('getAvailableVoices');
+      
+      if (result != null) {
+        final voicesList = result.map((item) {
+          final map = Map<String, dynamic>.from(item as Map);
+          return {
+            'name': map['name'] as String,
+            'locale': map['locale'] as String,
+            'gender': map['gender'] as String,
+            'displayName': map['displayName'] as String,
+          };
+        }).toList();
+        
+        _voices.value = List<Map<String, String>>.from(voicesList);
+        return _voices;
+      }
+      
+      return [];
+    } catch (e) {
+      Logger.error('获取可用语音列表失败', e);
+      return [];
+    }
+  }
+  
+  /// 设置语音
+  Future<bool> _setVoice(String voiceName) async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>(
+        'setVoice',
+        {'voiceName': voiceName},
+      );
+      return result ?? false;
+    } catch (e) {
+      Logger.error('设置语音失败', e);
+      return false;
+    }
+  }
+  
+  /// 设置语速
+  Future<bool> _setSpeechRate(int rate) async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>(
+        'setSpeechRate',
+        {'rate': rate},
+      );
+      return result ?? false;
+    } catch (e) {
+      Logger.error('设置语速失败', e);
+      return false;
+    }
+  }
+  
+  /// 设置音调
+  Future<bool> _setPitch(int pitch) async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>(
+        'setPitch',
+        {'pitch': pitch},
+      );
+      return result ?? false;
+    } catch (e) {
+      Logger.error('设置音调失败', e);
+      return false;
+    }
+  }
+  
+  /// 设置音量
+  Future<bool> _setVolume(int volume) async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>(
+        'setVolume',
+        {'volume': volume},
+      );
+      return result ?? false;
+    } catch (e) {
+      Logger.error('设置音量失败', e);
+      return false;
+    }
+  }
+  
+  /// 合成文本为语音并保存到文件
+  /// 
+  /// [text] 要合成的文本
+  /// [fileName] 保存的文件名（不包含路径和扩展名）
+  /// 
+  /// 返回保存的音频文件路径，如果失败则返回 null
+  Future<String?> synthesizeToFile(String text, String fileName) async {
+    _checkInitialized();
+    
+    if (text.isEmpty) {
+      Logger.warning('合成文本为空');
+      return null;
+    }
+    
+    try {
+      // 获取临时目录
+      final tempDir = await getTemporaryDirectory();
+      final filePath = '${tempDir.path}/$fileName.wav';
+      
+      // 设置状态
+      _ttsState.value = TtsState.synthesizing;
+      
+      final result = await _methodChannel.invokeMethod<String>(
+        'synthesizeToFile',
+        {
+          'text': text,
+          'filePath': filePath,
+        },
+      );
+      
+      // 合成完成后设置状态
+      _ttsState.value = TtsState.idle;
+      
+      return result;
+    } catch (e) {
+      Logger.error('合成文本到文件失败', e);
+      
+      // 发生错误时设置状态
+      _ttsState.value = TtsState.idle;
+      
+      return null;
+    }
+  }
+  
+  /// 合成文本并直接播放
+  /// 
+  /// [text] 要合成并播放的文本
+  /// 
+  /// 返回是否成功开始播放
+  Future<bool> speak(String text) async {
+    _checkInitialized();
+    
+    if (text.isEmpty) {
+      Logger.warning('播放文本为空');
+      return false;
+    }
+    
+    try {
+      // 设置状态
+      _ttsState.value = TtsState.synthesizing;
+      
+      final result = await _methodChannel.invokeMethod<bool>(
+        'speak',
+        {'text': text},
+      );
+      
+      if (result == true) {
+        _ttsState.value = TtsState.playing;
+      } else {
+        _ttsState.value = TtsState.idle;
+      }
+      
+      return result ?? false;
+    } catch (e) {
+      Logger.error('合成并播放文本失败', e);
+      
+      // 发生错误时设置状态
+      _ttsState.value = TtsState.idle;
+      
+      return false;
+    }
+  }
+  
+  /// 停止播放
+  Future<bool> stop() async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>('stop');
+      
+      if (result == true) {
+        _ttsState.value = TtsState.stopped;
+      }
+      
+      return result ?? false;
+    } catch (e) {
+      Logger.error('停止播放失败', e);
+      return false;
+    }
+  }
+  
+  /// 暂停播放
+  Future<bool> pause() async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>('pause');
+      return result ?? false;
+    } catch (e) {
+      Logger.error('暂停播放失败', e);
+      return false;
+    }
+  }
+  
+  /// 恢复播放
+  Future<bool> resume() async {
+    _checkInitialized();
+    
+    try {
+      final result = await _methodChannel.invokeMethod<bool>('resume');
+      return result ?? false;
+    } catch (e) {
+      Logger.error('恢复播放失败', e);
+      return false;
+    }
+  }
+  
+  /// 检查是否已初始化
+  void _checkInitialized() {
+    if (!_isInitialized) {
+      throw StateError('Azure 文本转语音服务未初始化');
+    }
+  }
+  
+  /// 释放资源
+  Future<void> dispose() async {
+    try {
+      await _eventSubscription?.cancel();
+      _eventSubscription = null;
+      
+      // 只有在控制器存在且未关闭时才关闭
+      if (_eventStreamController != null && !_eventStreamController!.isClosed) {
+        await _eventStreamController?.close();
+      }
+      _eventStreamController = null;
+      
+      _synthesisStream = null;
+      
+      if (_isInitialized) {
+        await _methodChannel.invokeMethod<bool>('dispose');
+      }
+      
+      _isInitialized = false;
+      Logger.info('Azure 文本转语音服务资源已释放');
+    } catch (e) {
+      Logger.error('释放 Azure 文本转语音服务资源失败', e);
+    }
+  }
+  
+  @override
+  void onClose() {
+    dispose();
+    super.onClose();
+  }
+} 

lib/data/services/background_agent_service.dart

@@ -6,15 +6,29 @@ import '../providers/agent_provider.dart';
 import '../models/agent.dart';
 import '../../modules/chat/controllers/chat_controller.dart';
 import '../../modules/chat/models/message_model.dart';
-import 'azure_asr_service.dart';
+import 'volcano_asr_api_service.dart';
 import 'volcano_ai_service.dart';
 import 'volcano_tts_api_service.dart';
 import 'chat_history_service.dart';
 
 /// 后台代理服务，用于在应用处于后台时处理AI交互
 class BackgroundAgentService extends GetxService {
+  // 单例实例
+  static BackgroundAgentService? _instance;
+  
+  // 单例工厂方法
+  factory BackgroundAgentService() {
+    _instance ??= BackgroundAgentService._internal();
+    return _instance!;
+  }
+  
+  // 私有构造函数
+  BackgroundAgentService._internal() {
+    Logger.info('BackgroundAgentService 已创建');
+  }
+  
   // 服务实例
-  final AzureAsrService _asrService = Get.find<AzureAsrService>();
+  final VolcanoAsrApiService _asrService = Get.find<VolcanoAsrApiService>();
   final VolcanoAIService _aiService = Get.find<VolcanoAIService>();
   final VolcanoTtsApiService _ttsService = Get.find<VolcanoTtsApiService>();
   final ChatHistoryService _historyService = Get.find<ChatHistoryService>();
@@ -61,11 +75,6 @@ class BackgroundAgentService extends GetxService {
   // 本地消息历史备份
   final List<Map<String, String>> _localMessageHistory = [];
   
-  // 构造函数
-  BackgroundAgentService() {
-    Logger.info('BackgroundAgentService 已创建');
-  }
-  
   // TTS是否正在播放，直接从VolcanoTtsApiService获取
   bool get isTtsSpeaking => _ttsService.isPlaying;
   
@@ -82,7 +91,7 @@ class BackgroundAgentService extends GetxService {
     
     // 停止语音识别
     if (isListening.value) {
-      _asrService.stopContinuousRecognition();
+      _asrService.stopRecognition();
     }
     
     // 取消定时器
@@ -133,38 +142,44 @@ class BackgroundAgentService extends GetxService {
     }
   }
   
-  /// 启动语音识别
+  /// 停止语音识别
+  Future<void> _stopVoiceRecognition() async {
+    if (isListening.value) {
+      isListening.value = false;
+      
+      // 取消订阅
+      await _recognitionSubscription?.cancel();
+      _recognitionSubscription = null;
+      
+      // 停止语音识别
+      _asrService.stopRecognition();
+      
+      // 重置状态
+      recognizedText.value = '';
+    }
+  }
+  
+  /// 开始语音识别
   Future<void> _startVoiceRecognition() async {
     if (isListening.value) {
-      // 如果已经在监听，不需要重新启动
-      Logger.info('语音识别已经在运行，无需重新启动');
       return;
     }
     
     try {
       // 启动语音识别
-      final success = await _asrService.startContinuousRecognition();
+      final success = await _asrService.startRecognition();
       
       if (success) {
         isListening.value = true;
-        recognizedText.value = '';
         
-        // 监听识别事件
+        // 监听识别结果
-        _recognitionSubscription = _asrService.recognitionStream?.listen(
+        _recognitionSubscription = _asrService.recognitionStream.listen(
           (event) {
-            // 重置无活动定时器
-            _resetInactivityTimer();
-            
             switch (event.type) {
               case RecognitionEventType.recognizing:
                 // 实时更新识别文本
                 if (event.text.isNotEmpty) {
                   recognizedText.value = event.text;
-                  
-                  // 如果正在播放TTS，检测到用户说话则中断当前播放和AI回复
-                  if (_ttsService.isPlaying && event.text.trim().length > 3) {
-                    _interruptCurrentResponse("检测到用户说话，中断当前响应");
-                  }
                 }
                 break;
               case RecognitionEventType.finalResult:
@@ -175,32 +190,34 @@ class BackgroundAgentService extends GetxService {
                   // 处理识别到的文本
                   _processRecognizedText(event.text);
                   
-                  // 重置识别文本但保持识别状态
+                  // 重置识别文本
                   recognizedText.value = '';
                 }
                 break;
-              case RecognitionEventType.sessionStopped:
+              case RecognitionEventType.error:
-              case RecognitionEventType.canceled:
+                // 错误处理
-                // 会话结束，表示识别在其它地方被启动，直接退出后台服务
+                Logger.info('语音识别错误: ${event.error}');
-                isListening.value = false;
+                
-                Logger.info('语音识别会话被中止，退出后台代理服务');
+                // 不再尝试重新启动语音识别，而是直接停止交互
+                Logger.info('语音识别出错，停止后台代理交互');
                 stopInteraction();
                 break;
+              case RecognitionEventType.started:
               default:
+                // 不做任何处理
                 break;
             }
           },
           onError: (error) {
-            Logger.error('语音识别错误', error);
+            Logger.info('语音识别错误:$error');
-            isListening.value = false;
             
-            // 如果出错，尝试重新启动语音识别
+            // 不再尝试重新启动语音识别，而是直接停止交互
-            _restartVoiceRecognition();
+            Logger.info('语音识别流错误，停止后台代理交互');
+            stopInteraction();
           },
         );
       } else {
         Logger.error('启动语音识别失败');
-        isProcessing.value = false;
       }
     } catch (e) {
       Logger.error('启动语音识别失败', e);
@@ -278,7 +295,7 @@ class BackgroundAgentService extends GetxService {
   Future<void> _restartVoiceRecognition() async {
     // 停止当前的语音识别
     if (isListening.value) {
-      await _asrService.stopContinuousRecognition();
+      await _asrService.stopRecognition();
       isListening.value = false;
       
       // 取消当前的订阅
@@ -343,7 +360,6 @@ class BackgroundAgentService extends GetxService {
             'content': message.content,
           });
         }
-        Logger.info('已加载${messages.length}条聊天历史记录，代理: ${_currentAgent!.id}');
       }
     } catch (e) {
       Logger.error('加载聊天历史记录失败', e);
@@ -438,10 +454,9 @@ class BackgroundAgentService extends GetxService {
       }
       
       // 停止语音识别
-      // if (isListening.value) {
+      if (isListening.value) {
-      //   await _asrService.stopContinuousRecognition();
+        await _stopVoiceRecognition();
-      //   isListening.value = false;
+      }
-      // }
       
       // 取消定时器
       _inactivityTimer?.cancel();

lib/data/services/chat_history_service.dart

@@ -39,9 +39,7 @@ class ChatHistoryService extends GetxService {
       final jsonList = messagesToSave.map((m) => m.toJson()).toList();
       final jsonString = jsonEncode(jsonList);
       
-      // 保存到存储
+
-      await _storage.write(_getHistoryKey(agentId), jsonString);
-      Logger.info('已保存${messagesToSave.length}条聊天记录，代理: $agentId');
     } catch (e) {
       Logger.error('保存聊天记录失败', e);
     }
@@ -62,7 +60,6 @@ class ChatHistoryService extends GetxService {
       final jsonList = jsonDecode(jsonString) as List;
       final messages = jsonList.map((json) => Message.fromJson(json)).toList();
       
-      Logger.info('已加载${messages.length}条聊天记录，代理: $agentId');
       return messages;
     } catch (e) {
       Logger.error('加载聊天记录失败', e);

lib/data/services/flutter_asr_service.dart

@@ -0,0 +1,236 @@
+import 'dart:async';
+import 'package:flutter/foundation.dart';
+import 'package:get/get.dart';
+import 'package:speech_to_text/speech_to_text.dart';
+import 'package:speech_to_text/speech_recognition_result.dart';
+import '../../core/utils/logger.dart';
+
+/// ASR状态枚举
+enum AsrState {
+  notInitialized, // 未初始化
+  initialized,    // 已初始化
+  listening,      // 正在监听
+  notListening,   // 未监听
+  error           // 错误状态
+}
+
+/// Flutter ASR服务，负责本地语音转文本功能
+class FlutterAsrService extends GetxService {
+  // 语音识别实例
+  late SpeechToText _speech;
+  
+  // 当前ASR状态
+  final Rx<AsrState> _asrState = AsrState.notInitialized.obs;
+  AsrState get asrState => _asrState.value;
+  
+  // 可用的语音识别语言
+  final RxList<LocaleName> _locales = <LocaleName>[].obs;
+  List<LocaleName> get locales => _locales;
+  
+  // 当前选择的语言
+  final RxString _currentLocale = ''.obs;
+  String get currentLocale => _currentLocale.value;
+  
+  // 识别结果
+  final RxString _lastWords = ''.obs;
+  String get lastWords => _lastWords.value;
+  
+  // 识别准确度
+  final RxDouble _confidence = 0.0.obs;
+  double get confidence => _confidence.value;
+  
+  // 是否可用
+  final RxBool _isAvailable = false.obs;
+  bool get isAvailable => _isAvailable.value;
+  
+  // 是否正在监听
+  bool get isListening => _speech.isListening;
+  
+  // 识别结果流
+  final _recognitionResultsController = StreamController<String>.broadcast();
+  Stream<String> get recognitionResults => _recognitionResultsController.stream;
+  
+  @override
+  void onInit() {
+    super.onInit();
+    _initSpeech();
+  }
+  
+  /// 初始化语音识别
+  Future<void> _initSpeech() async {
+    _speech = SpeechToText();
+    
+    try {
+      final available = await _speech.initialize(
+        onStatus: _onStatusChanged,
+        onError: _onErrorListener,
+        debugLogging: kDebugMode,
+      );
+      
+      _isAvailable.value = available;
+      
+      if (available) {
+        _asrState.value = AsrState.initialized;
+        
+        // 获取可用的语言
+        final locales = await _speech.locales();
+        _locales.assignAll(locales);
+        
+        // 默认选择系统语言，如果支持的话
+        final systemLocale = await _speech.systemLocale();
+        if (systemLocale != null) {
+          _currentLocale.value = systemLocale.localeId;
+        } else if (_locales.isNotEmpty) {
+          _currentLocale.value = _locales.first.localeId;
+        }
+        
+        Logger.info('语音识别初始化成功，可用语言数量: ${_locales.length}');
+      } else {
+        _asrState.value = AsrState.error;
+        Logger.error('语音识别不可用');
+      }
+    } catch (e) {
+      _asrState.value = AsrState.error;
+      _isAvailable.value = false;
+      Logger.error('语音识别初始化失败: $e');
+    }
+  }
+  
+  /// 开始监听
+  /// 
+  /// [listenFor] 监听时长，默认30秒
+  /// [pauseFor] 暂停时长，默认3秒，超过此时长无语音输入会自动停止
+  /// [partialResults] 是否返回部分结果，默认true
+  /// [onDevice] 是否使用设备本地识别，默认false
+  /// [listenMode] 监听模式，默认设备默认模式
+  Future<bool> startListening({
+    Duration listenFor = const Duration(seconds: 30),
+    Duration pauseFor = const Duration(seconds: 3),
+    bool partialResults = true,
+    bool onDevice = false,
+    ListenMode listenMode = ListenMode.deviceDefault,
+  }) async {
+    if (!_isAvailable.value) {
+      Logger.error('语音识别不可用，无法开始监听');
+      return false;
+    }
+    
+    // 清空上次的识别结果
+    _lastWords.value = '';
+    _confidence.value = 0.0;
+    
+    try {
+      final started = await _speech.listen(
+        onResult: _onSpeechResult,
+        listenFor: listenFor,
+        pauseFor: pauseFor,
+        localeId: _currentLocale.value,
+        listenOptions: SpeechListenOptions(
+          partialResults: partialResults,
+          onDevice: onDevice,
+          listenMode: listenMode,
+        ),
+      );
+      
+      if (started) {
+        _asrState.value = AsrState.listening;
+        Logger.info('开始语音识别监听');
+      } else {
+        Logger.error('开始语音识别监听失败');
+      }
+      
+      return started;
+    } catch (e) {
+      Logger.error('开始语音识别监听出错: $e');
+      return false;
+    }
+  }
+  
+  /// 停止监听
+  Future<void> stopListening() async {
+    if (!_speech.isListening) return;
+    
+    try {
+      await _speech.stop();
+      _asrState.value = AsrState.notListening;
+      Logger.info('停止语音识别监听');
+    } catch (e) {
+      Logger.error('停止语音识别监听出错: $e');
+    }
+  }
+  
+  /// 取消监听
+  Future<void> cancelListening() async {
+    if (!_speech.isListening) return;
+    
+    try {
+      await _speech.cancel();
+      _lastWords.value = '';
+      _confidence.value = 0.0;
+      _asrState.value = AsrState.notListening;
+      Logger.info('取消语音识别监听');
+    } catch (e) {
+      Logger.error('取消语音识别监听出错: $e');
+    }
+  }
+  
+  /// 设置当前语言
+  void setLocale(String localeId) {
+    if (_currentLocale.value != localeId) {
+      _currentLocale.value = localeId;
+      Logger.info('设置语音识别语言: $localeId');
+    }
+  }
+  
+  /// 语音识别结果回调
+  void _onSpeechResult(SpeechRecognitionResult result) {
+    final resultText = result.recognizedWords;
+    _lastWords.value = resultText;
+    
+    if (result.finalResult) {
+      // 计算置信度 - 仅在最终结果时有效
+      if (result.alternates.isNotEmpty) {
+        _confidence.value = result.alternates.first.confidence;
+      }
+      
+      // 发送最终结果到流
+      _recognitionResultsController.add(resultText);
+      
+      Logger.info('语音识别最终结果: "$resultText", 置信度: ${_confidence.value}');
+      _asrState.value = AsrState.notListening;
+    } else {
+      // 部分结果
+      Logger.info('语音识别部分结果: "$resultText"');
+    }
+  }
+  
+  /// 状态变化回调
+  void _onStatusChanged(String status) {
+    Logger.info('语音识别状态变化: $status');
+    
+    switch (status) {
+      case 'listening':
+        _asrState.value = AsrState.listening;
+        break;
+      case 'notListening':
+        _asrState.value = AsrState.notListening;
+        break;
+      case 'done':
+        _asrState.value = AsrState.notListening;
+        break;
+    }
+  }
+  
+  /// 错误回调
+  void _onErrorListener(dynamic error) {
+    Logger.error('语音识别错误: ${error.errorMsg}');
+    _asrState.value = AsrState.error;
+  }
+  
+  @override
+  void onClose() {
+    _speech.cancel();
+    _recognitionResultsController.close();
+    super.onClose();
+  }
+} 

lib/data/services/flutter_tts_service.dart

@@ -0,0 +1,364 @@
+import 'dart:io';
+import 'package:flutter_tts/flutter_tts.dart';
+import 'package:get/get.dart';
+import '../../core/utils/logger.dart';
+
+/// Flutter TTS服务，负责本地文本转语音功能
+class FlutterTtsService extends GetxService {
+  late FlutterTts _flutterTts;
+  
+  // 当前TTS状态
+  TtsState _ttsState = TtsState.stopped;
+  TtsState get ttsState => _ttsState;
+  
+  // 可用的语音
+  List<Map<String, String>> _voices = [];
+  List<Map<String, String>> get voices => _voices;
+  
+  // 当前选择的语音
+  String _currentVoice = '';
+  String get currentVoice => _currentVoice;
+  set currentVoice(String voice) => _currentVoice = voice;
+  
+  // 语速 (0.1-2.0)
+  double _rate = 0.5;
+  double get rate => _rate;
+  set rate(double value) => _rate = value;
+  
+  // 音量 (0.0-1.0)
+  double _volume = 1.0;
+  double get volume => _volume;
+  set volume(double value) => _volume = value;
+  
+  // 音调 (0.5-2.0)
+  double _pitch = 1.0;
+  double get pitch => _pitch;
+  set pitch(double value) => _pitch = value;
+  
+  // 文本队列 - 仅包含待播放的文本
+  List<String> _textQueue = [];
+  List<String> get textQueue => _textQueue;
+  
+  // 当前正在播放的文本
+  String _currentText = '';
+  String get currentText => _currentText;
+  
+  // 是否正在处理队列
+  bool _isProcessingQueue = false;
+  
+  @override
+  void onInit() {
+    super.onInit();
+    _initTts();
+  }
+  
+  /// 初始化TTS引擎
+  Future<void> _initTts() async {
+    _flutterTts = FlutterTts();
+    
+    // 设置完成回调
+    _flutterTts.setCompletionHandler(() {
+      Logger.info('TTS播放完成: "$_currentText"');
+      
+      // 清空当前播放文本
+      _currentText = '';
+      
+      // 处理队列中的下一条文本
+      _processNextInQueue();
+      
+      // 只有当队列为空且不再处理队列时才设置为stopped状态
+      if (_textQueue.isEmpty && !_isProcessingQueue) {
+        _ttsState = TtsState.stopped;
+        Logger.info('TTS队列播放完成，设置为stopped状态');
+      }
+    });
+    
+    // 设置错误回调
+    _flutterTts.setErrorHandler((error) {
+      Logger.error('Flutter TTS错误: $error');
+      
+      // 清空当前播放文本
+      _currentText = '';
+      
+      // 尝试播放下一条文本
+      _processNextInQueue();
+      
+      // 只有当队列为空且不再处理队列时才设置为stopped状态
+      if (_textQueue.isEmpty && !_isProcessingQueue) {
+        _ttsState = TtsState.stopped;
+        Logger.info('TTS队列播放出错且为空，设置为stopped状态');
+      }
+    });
+    
+    // 设置开始回调
+    _flutterTts.setStartHandler(() {
+      _ttsState = TtsState.playing;
+    });
+    
+    // 设置取消回调
+    _flutterTts.setCancelHandler(() {
+      // 清空当前播放文本
+      _currentText = '';
+      _isProcessingQueue = false;
+      _ttsState = TtsState.stopped;
+      Logger.info('TTS播放被取消，设置为stopped状态');
+    });
+    
+    // 设置暂停回调
+    _flutterTts.setPauseHandler(() {
+      _ttsState = TtsState.paused;
+    });
+    
+    // 设置继续回调
+    _flutterTts.setContinueHandler(() {
+      _ttsState = TtsState.playing;
+    });
+    
+    // 加载可用语音
+    await _loadVoices();
+    
+    Logger.info('Flutter TTS服务已初始化');
+  }
+  
+  /// 加载可用的语音
+  Future<void> _loadVoices() async {
+    try {
+      if (Platform.isAndroid || Platform.isIOS) {
+        final voices = await _flutterTts.getVoices;
+        if (voices != null) {
+          _voices = [];
+          for (var voice in voices) {
+            if (voice is Map) {
+              final Map<String, String> voiceMap = {};
+              voice.forEach((key, value) {
+                if (key is String && value is String) {
+                  voiceMap[key] = value;
+                } else if (key is String) {
+                  voiceMap[key] = value.toString();
+                }
+              });
+              if (voiceMap.containsKey('name')) {
+                _voices.add(voiceMap);
+              }
+            }
+          }
+          
+          // 如果有可用语音，设置第一个为默认
+          if (_voices.isNotEmpty) {
+            _currentVoice = _voices[0]['name'] ?? '';
+            await _flutterTts.setVoice({"name": _currentVoice});
+          }
+        }
+      }
+    } catch (e) {
+      Logger.error('加载TTS语音失败', e);
+    }
+  }
+  
+  /// 设置语音
+  Future<void> setVoice(String voiceName) async {
+    try {
+      _currentVoice = voiceName;
+      await _flutterTts.setVoice({"name": voiceName});
+    } catch (e) {
+      Logger.error('设置TTS语音失败', e);
+    }
+  }
+  
+  /// 设置语速
+  Future<void> setRate(double rate) async {
+    try {
+      _rate = rate;
+      await _flutterTts.setSpeechRate(rate);
+    } catch (e) {
+      Logger.error('设置TTS语速失败', e);
+    }
+  }
+  
+  /// 设置音量
+  Future<void> setVolume(double volume) async {
+    try {
+      _volume = volume;
+      await _flutterTts.setVolume(volume);
+    } catch (e) {
+      Logger.error('设置TTS音量失败', e);
+    }
+  }
+  
+  /// 设置音调
+  Future<void> setPitch(double pitch) async {
+    try {
+      _pitch = pitch;
+      await _flutterTts.setPitch(pitch);
+    } catch (e) {
+      Logger.error('设置TTS音调失败', e);
+    }
+  }
+  
+  /// 设置语言
+  Future<void> setLanguage(String language) async {
+    try {
+      await _flutterTts.setLanguage(language);
+    } catch (e) {
+      Logger.error('设置TTS语言失败', e);
+    }
+  }
+  
+  /// 添加文本到队列并开始处理队列（如果尚未开始）
+  Future<void> speak(String text) async {
+    if (text.isEmpty) return;
+    
+    // 添加到队列
+    _addToQueue(text);
+    
+    // 开始处理队列（如果尚未开始）
+    _startQueueProcessingIfNeeded();
+  }
+  
+  /// 添加多条文本到队列并开始处理队列（如果尚未开始）
+  Future<void> speakTexts(List<String> texts) async {
+    if (texts.isEmpty) return;
+    
+    // 添加所有非空文本到队列
+    int addedCount = 0;
+    for (final text in texts) {
+      if (text.isNotEmpty) {
+        _textQueue.add(text);
+        addedCount++;
+      }
+    }
+    
+    if (addedCount > 0) {
+      Logger.info('已添加$addedCount条文本到TTS队列');
+      
+      // 开始处理队列（如果尚未开始）
+      _startQueueProcessingIfNeeded();
+    }
+  }
+  
+  /// 添加文本到队列
+  void _addToQueue(String text) {
+    if (text.isEmpty) return;
+    
+    _textQueue.add(text);
+    Logger.info('已添加文本到TTS队列: "${text.length > 20 ? text.substring(0, 20) + '...' : text}"');
+  }
+  
+  /// 开始处理队列（如果尚未开始）
+  void _startQueueProcessingIfNeeded() {
+    // 如果队列为空，不需要处理
+    if (_textQueue.isEmpty) return;
+    
+    // 如果已经在处理队列或正在播放，不需要重新开始
+    if (_isProcessingQueue || _ttsState == TtsState.playing) return;
+    
+    // 开始处理队列
+    _isProcessingQueue = true;
+    _processNextInQueue();
+  }
+  
+  /// 处理队列中的下一条文本
+  void _processNextInQueue() {
+    // 如果队列为空，结束处理但不立即设置stopped状态
+    if (_textQueue.isEmpty) {
+      _currentText = '';
+      _isProcessingQueue = false;
+      
+      // 只有当当前没有文本在播放时才设置为stopped状态
+      if (_currentText.isEmpty) {
+        _ttsState = TtsState.stopped;
+        Logger.info('TTS队列为空，设置为stopped状态');
+      }
+      return;
+    }
+    
+    // 获取队列中的第一条文本并播放
+    _speakNextText();
+  }
+  
+  /// 播放队列中的下一条文本
+  Future<void> _speakNextText() async {
+    if (_textQueue.isEmpty) {
+      _isProcessingQueue = false;
+      
+      // 只有当当前没有文本在播放时才设置为stopped状态
+      if (_currentText.isEmpty) {
+        _ttsState = TtsState.stopped;
+        Logger.info('TTS队列播放完成，设置为stopped状态');
+      }
+      return;
+    }
+    
+    // 获取队列中的第一条文本
+    final text = _textQueue.removeAt(0);
+    _currentText = text;
+    
+    try {
+      // 设置TTS参数
+      await _flutterTts.setSpeechRate(_rate);
+      await _flutterTts.setVolume(_volume);
+      await _flutterTts.setPitch(_pitch);
+      
+      if (_currentVoice.isNotEmpty) {
+        await _flutterTts.setVoice({"name": _currentVoice});
+      }
+      
+      // 播放文本
+      await _flutterTts.speak(text);
+      Logger.info('正在播放文本，队列中还有${_textQueue.length}条待播放');
+    } catch (e) {
+      Logger.error('TTS播放文本失败', e);
+      // 清空当前文本
+      _currentText = '';
+      // 尝试播放下一个
+      _processNextInQueue();
+    }
+  }
+  
+  /// 停止播放并清空队列
+  Future<void> stop() async {
+    try {
+      await _flutterTts.stop();
+      
+      // 重置队列处理状态
+      _textQueue.clear();
+      _currentText = '';
+      _isProcessingQueue = false;
+      _ttsState = TtsState.stopped;
+      
+      Logger.info('已停止TTS播放并清空队列');
+    } catch (e) {
+      Logger.error('停止TTS播放失败', e);
+    }
+  }
+  
+  /// 暂停播放
+  Future<void> pause() async {
+    try {
+      await _flutterTts.pause();
+      _ttsState = TtsState.paused;
+    } catch (e) {
+      Logger.error('暂停TTS播放失败', e);
+    }
+  }
+  
+  /// 清空队列并停止播放
+  Future<void> clearQueue() async {
+    _textQueue.clear();
+    await stop();
+    Logger.info('已清空TTS队列');
+  }
+  
+  @override
+  void onClose() {
+    _flutterTts.stop();
+    super.onClose();
+  }
+}
+
+/// TTS状态枚举
+enum TtsState {
+  playing,
+  stopped,
+  paused,
+} 

lib/data/services/function_service.dart

@@ -0,0 +1,97 @@
+import 'dart:convert';
+
+/// 函数服务
+/// 仅实现各种功能函数，不包含AI交互逻辑
+class FunctionService {
+  /// 天气查询工具定义
+  /// 返回一个可直接用于tools参数的天气查询工具定义
+  static Map<String, dynamic> getWeatherToolDefinition() {
+    return {
+      'type': 'function',
+      'function': {
+        'name': 'get_current_weather',
+        'description': '获取指定地点的当前天气信息',
+        'parameters': {
+          'type': 'object',
+          'properties': {
+            'location': {
+              'type': 'string',
+              'description': '地理位置，例如：北京市',
+            },
+            'unit': {
+              'type': 'string',
+              'description': '温度单位',
+              'enum': ['celsius', 'fahrenheit'],
+            },
+          },
+          'required': ['location'],
+        },
+      },
+    };
+  }
+  
+  /// 模拟天气API实现
+  /// 返回一个模拟的天气信息，实际应用中应该调用真实的天气API
+  static Future<Map<String, dynamic>> getWeatherInfo(Map<String, dynamic> args) async {
+    final location = args['location'] ?? '未知地点';
+    final unit = args['unit'] ?? 'celsius';
+    
+    // 在实际应用中，这里应该调用真实的天气API
+    return {
+      'location': location,
+      'temperature': unit == 'celsius' ? '25°C' : '77°F',
+      'conditions': '晴转多云',
+      'humidity': '55%',
+      'wind': '西南风 3级',
+      'date': DateTime.now().toString().split(' ')[0],
+    };
+  }
+  
+  /// 解析函数调用参数
+  /// 从AI响应中提取函数调用参数
+  static Map<String, dynamic> parseFunctionCallArguments(Map<String, dynamic> functionCallResponse) {
+    if (functionCallResponse['tool_calls'] == null || 
+        functionCallResponse['tool_calls'].isEmpty) {
+      throw FunctionServiceException('No tool calls found in response');
+    }
+    
+    final toolCall = functionCallResponse['tool_calls'][0];
+    if (toolCall['function'] == null || toolCall['function']['arguments'] == null) {
+      throw FunctionServiceException('Invalid function call format');
+    }
+    
+    try {
+      return json.decode(toolCall['function']['arguments']);
+    } catch (e) {
+      throw FunctionServiceException('Failed to parse function arguments: $e');
+    }
+  }
+  
+  /// 获取函数调用ID和名称
+  /// 用于构建工具响应消息
+  static Map<String, String> getFunctionCallInfo(Map<String, dynamic> functionCallResponse) {
+    if (functionCallResponse['tool_calls'] == null || 
+        functionCallResponse['tool_calls'].isEmpty) {
+      throw FunctionServiceException('No tool calls found in response');
+    }
+    
+    final toolCall = functionCallResponse['tool_calls'][0];
+    if (toolCall['id'] == null || toolCall['function'] == null || toolCall['function']['name'] == null) {
+      throw FunctionServiceException('Invalid function call format');
+    }
+    
+    return {
+      'id': toolCall['id'],
+      'name': toolCall['function']['name'],
+    };
+  }
+}
+
+/// 函数调用服务异常类
+class FunctionServiceException implements Exception {
+  final String message;
+  FunctionServiceException(this.message);
+  
+  @override
+  String toString() => message;
+} 

lib/data/services/my_audio_handler.dart

@@ -132,17 +132,14 @@ class MyAudioHandler extends BaseAudioHandler {
         updatePosition: Duration.zero,
       ));
       
-      // 如果状态变为播放，确保前台服务启动
+
-      if (playing) {
-        Logger.info('更新播放状态为播放中，确保前台服务启动');
-      }
     } catch (e) {
       Logger.error('更新播放状态失败', e);
     }
   }
 
   Future<void> _handleInteraction() async {
-    Logger.info('处理媒体按钮交互');
+    // Logger.info('处理媒体按钮交互');
     
     // 防止重复处理
     if (_isHandlingInteraction) {

lib/data/services/volcano_asr_service.dart

@@ -1,384 +0,0 @@
-import 'dart:async';
-import 'dart:math' as math;
-import 'package:flutter/services.dart';
-import 'package:flutter_dotenv/flutter_dotenv.dart';
-import 'package:get/get.dart';
-import '../../core/utils/logger.dart';
-
-/// 识别事件类型
-enum RecognitionEventType {
-  started,
-  recognizing,
-  finalResult,
-  error,
-  completed,
-}
-
-/// 识别事件
-class RecognitionEvent {
-  final RecognitionEventType type;
-  final String text;
-  final String? error;
-
-  RecognitionEvent({
-    required this.type,
-    this.text = '',
-    this.error,
-  });
-}
-
-/// 火山语音识别服务
-/// 
-/// 该服务提供了通过平台通道与 Android 上的火山语音识别 SDK 交互的接口
-class VolcanoAsrService extends GetxService {
-  // 平台通道
-  static const MethodChannel _channel = MethodChannel('com.example.deep_voice/volcano_asr');
-  static const EventChannel _eventChannel = EventChannel('com.example.deep_voice/volcano_asr_events');
-  
-  // 配置参数
-  late final String _appId;
-  late final String _token;
-  late final String _cluster; // 集群区域
-  late final String? _resourceId; // 资源ID，用于大模型流式识别API鉴权
-  
-  // 状态变量
-  final _isListening = false.obs;
-  final _isInitialized = false.obs;
-  final _errorMessage = ''.obs;
-  final _recognitionResults = <String>[].obs;
-  
-  // 是否使用标准语音识别SDK
-  final bool _useStandardASR = true; // 使用标准语音识别SDK (API v2)
-  
-  // 添加识别结果流控制器
-  final _recognitionStreamController = StreamController<RecognitionEvent>.broadcast();
-  
-  // 事件订阅
-  StreamSubscription? _eventSubscription;
-  
-  // 最新的识别结果
-  final _latestRecognizedText = ''.obs;
-  String get latestRecognizedText => _latestRecognizedText.value;
-  
-  /// 检查连续识别是否处于活动状态
-  bool isContinuousRecognitionActive() {
-    return _isListening.value;
-  }
-  
-  VolcanoSrcService() {
-    // 从环境变量获取配置
-    _appId = dotenv.env['VOLCANO_ASR_APP_ID'] ?? '';
-    _token = dotenv.env['VOLCANO_ASR_APP_TOKEN'] ?? '';
-    // 从环境变量获取集群区域
-    _cluster = dotenv.env['VOLCANO_ASR_CLUSTER'] ?? '';
-    // 从环境变量获取资源ID
-    _resourceId = dotenv.env['VOLCANO_ASR_RESOURCE_ID'];
-    
-    Logger.info('火山语音识别配置: APP_ID=${_appId.isNotEmpty ? "已设置" : "未设置"}, APP_KEY=${_token.isNotEmpty ? "已设置" : "未设置"}');
-    Logger.info('使用标准语音识别SDK: $_useStandardASR');
-    Logger.info('集群区域: $_cluster');
-    Logger.info('资源ID: $_resourceId');
-    
-    if (_appId.isEmpty || _token.isEmpty) {
-      _errorMessage.value = '火山语音识别配置不完整，请检查环境变量';
-      Logger.error(_errorMessage.value);
-    }
-  }
-
-
-  // 获取可观察状态
-  RxBool get isListening => _isListening;
-  bool get isInitialized => _isInitialized.value;
-  String get errorMessage => _errorMessage.value;
-  List<String> get recognitionResults => _recognitionResults;
-  
-  // 添加识别结果流getter
-  Stream<RecognitionEvent> get recognitionStream => _recognitionStreamController.stream;
-  
-  @override
-  void onInit() {
-    super.onInit();
-    _setupMethodCallHandler();
-  }
-  
-  /// 设置方法通道处理器
-  Future<void> _setupMethodCallHandler() async {
-    _channel.setMethodCallHandler((call) async {
-      switch (call.method) {
-        case 'onRecognitionResult':
-          final String result = call.arguments as String;
-          _onRecognitionResult(result);
-          break;
-        case 'onRecognitionError':
-          final String error = call.arguments as String;
-          _errorMessage.value = error;
-          Logger.error('识别错误: $error');
-          _recognitionStreamController.add(RecognitionEvent(
-            type: RecognitionEventType.error,
-            error: error,
-          ));
-          break;
-        case 'onListeningStateChanged':
-          final bool isListening = call.arguments as bool;
-          _isListening.value = isListening;
-          Logger.info('监听状态变化: $isListening');
-          break;
-      }
-    });
-  }
-  
-  /// 处理识别结果
-  void _onRecognitionResult(String result) {
-    if (result.isNotEmpty) {
-      _recognitionResults.add(result);
-      // 将结果发送到流
-      _recognitionStreamController.add(RecognitionEvent(
-        type: RecognitionEventType.finalResult,
-        text: result,
-      ));
-      Logger.info('识别结果: $result');
-    }
-  }
-  
-  /// 初始化语音识别引擎
-  Future<bool> initialize() async {
-    if (_isInitialized.value) return true;
-    
-    if (_appId.isEmpty || _token.isEmpty) {
-      _errorMessage.value = '火山语音识别配置不完整，请检查环境变量';
-      Logger.error(_errorMessage.value);
-      return false;
-    }
-    
-    try {
-      _errorMessage.value = '';
-      Logger.info('开始初始化火山语音识别服务，APP_ID: ${_appId.substring(0, math.min(3, _appId.length))}***，APP_KEY: ${_token.length > 10 ? "${_token.substring(0, 5)}..." : _token}');
-      
-      Logger.info('使用标准语音识别SDK配置 (API v2)');
-      Logger.info('集群区域: $_cluster');
-      Logger.info('资源ID: $_resourceId');
-      
-      final Map<String, dynamic> params = {
-        'subscriptionKey': _appId,
-        'serviceRegion': _token,
-        'cluster': _cluster,
-        'resourceId': _resourceId,
-      };
-      
-      final bool result = await _channel.invokeMethod('initialize', params);
-      
-      if (result) {
-        _isInitialized.value = true;
-        Logger.info('火山语音识别服务初始化成功');
-      } else {
-        _errorMessage.value = '初始化失败，请检查配置';
-        Logger.error('火山语音识别服务初始化失败');
-        Logger.info('请检查以下可能的问题:');
-        Logger.info('1. 确保您的APP_ID和APP_KEY正确');
-        Logger.info('2. 确保您的应用ID和密钥正确且有效');
-        Logger.info('3. 确保您的应用已被授权使用语音识别服务');
-      }
-      
-      return result;
-    } catch (e) {
-      _errorMessage.value = '初始化异常: $e';
-      Logger.error('初始化火山语音识别服务异常: $e');
-      Logger.info('请检查以下可能的问题:');
-      Logger.info('1. 确保您的网络连接正常');
-      Logger.info('2. 确保集群区域设置正确 (当前: $_cluster)');
-      Logger.info('3. 确保请求参数格式正确');
-      Logger.info('4. 确保Token格式正确，需要添加Bearer;前缀');
-      
-      _isInitialized.value = false;
-      return false;
-    }
-  }
-  
-  /// 开始一次性识别
-  Future<bool> startOneTimeRecognition() async {
-    if (_isListening.value) {
-      Logger.warning('已经在进行语音识别，请先停止当前识别');
-      return false;
-    }
-    
-    if (!_isInitialized.value) {
-      try {
-        final bool initialized = await initialize();
-        if (!initialized) {
-          Logger.error('语音识别服务未初始化，无法开始识别');
-          _errorMessage.value = '语音识别服务未初始化，无法开始识别';
-          return false;
-        }
-      } catch (e) {
-        Logger.error('初始化语音识别服务失败: $e');
-        _errorMessage.value = '初始化语音识别服务失败: $e';
-        return false;
-      }
-    }
-    
-    try {
-      _errorMessage.value = '';
-      _recognitionResults.clear();
-      
-      final bool result = await _channel.invokeMethod('recognizeOnce');
-      _isListening.value = result;
-      
-      if (result) {
-        _recognitionStreamController.add(RecognitionEvent(
-          type: RecognitionEventType.started,
-          text: '',
-        ));
-      }
-      
-      return result;
-    } catch (e) {
-      Logger.error('开始一次性识别失败: $e');
-      _errorMessage.value = e.toString();
-      return false;
-    }
-  }
-  
-  /// 开始连续识别
-  Future<bool> startContinuousRecognition() async {
-
-    //启动前先尝试停止当前识别
-
-    if (_isListening.value) {
-      Logger.warning('已经在进行语音识别，请先停止当前识别');
-      return false;
-    }
-    
-    if (!_isInitialized.value) {
-      try {
-        final bool initialized = await initialize();
-        if (!initialized) {
-          Logger.error('语音识别服务未初始化，无法开始识别');
-          _errorMessage.value = '语音识别服务未初始化，无法开始识别';
-          return false;
-        }
-      } catch (e) {
-        Logger.error('初始化语音识别服务失败: $e');
-        _errorMessage.value = '初始化语音识别服务失败: $e';
-        return false;
-      }
-    }
-    
-    try {
-      _errorMessage.value = '';
-      _recognitionResults.clear();
-      
-      // 设置事件监听
-      _eventSubscription = _eventChannel
-          .receiveBroadcastStream()
-          .listen(_handleNativeEvent, onError: (error) {
-            _errorMessage.value = error.toString();
-            _isListening.value = false;
-            _recognitionStreamController.add(RecognitionEvent(
-              type: RecognitionEventType.error,
-              error: error.toString(),
-            ));
-          });
-      
-      final bool result = await _channel.invokeMethod('startContinuousRecognition');
-      _isListening.value = result;
-      
-      if (result) {
-        _recognitionStreamController.add(RecognitionEvent(
-          type: RecognitionEventType.started,
-          text: '',
-        ));
-      }
-      
-      return result;
-    } catch (e) {
-      Logger.error('开始连续识别失败: $e');
-      _errorMessage.value = e.toString();
-      _cleanupEventStream();
-      return false;
-    }
-  }
-  
-  /// 处理来自原生端的事件
-  void _handleNativeEvent(dynamic event) {
-    if (event is! Map) return;
-    
-    final Map<dynamic, dynamic> eventMap = event;
-    final String eventType = eventMap['eventType'] as String? ?? '';
-    
-    switch (eventType) {
-      case 'recognizing':
-        final String text = eventMap['text'] as String? ?? '';
-        _recognitionStreamController.add(RecognitionEvent(
-          type: RecognitionEventType.recognizing,
-          text: text,
-        ));
-        break;
-      case 'finalResult':
-        final String text = eventMap['text'] as String? ?? '';
-        _latestRecognizedText.value = text;
-        _recognitionResults.add(text);
-        _recognitionStreamController.add(RecognitionEvent(
-          type: RecognitionEventType.finalResult,
-          text: text,
-        ));
-        break;
-      case 'error':
-        final String error = eventMap['error'] as String? ?? '未知错误';
-        _errorMessage.value = error;
-        _isListening.value = false;
-        _recognitionStreamController.add(RecognitionEvent(
-          type: RecognitionEventType.error,
-          error: error,
-        ));
-        break;
-    }
-  }
-  
-  /// 清理事件流
-  void _cleanupEventStream() {
-    _eventSubscription?.cancel();
-    _eventSubscription = null;
-  }
-  
-  /// 停止识别
-  Future<bool> stopRecognition() async {
-    if (!_isListening.value) {
-      Logger.warning('当前没有进行语音识别');
-      return false;
-    }
-    
-    try {
-      final bool result = await _channel.invokeMethod('stopContinuousRecognition');
-      _isListening.value = !result;
-      
-      if (result) {
-        _cleanupEventStream();
-      }
-      
-      return result;
-    } catch (e) {
-      Logger.error('停止识别失败: $e');
-      _errorMessage.value = e.toString();
-      return false;
-    }
-  }
-  
-  /// 清理资源
-  Future<void> dispose() async {
-    try {
-      if (_isListening.value) {
-        await stopRecognition();
-      }
-      _cleanupEventStream();
-    } catch (e) {
-      Logger.error('清理语音识别资源失败: $e');
-    }
-  }
-  
-  @override
-  void onClose() {
-    _eventSubscription?.cancel();
-    _recognitionStreamController.close();
-    super.onClose();
-  }
-} 

lib/data/services/volcano_tts_api_service.dart

@@ -11,9 +11,39 @@ import 'package:web_socket_channel/io.dart';
 import 'package:uuid/uuid.dart';
 import 'package:just_audio/just_audio.dart';
 import 'package:path_provider/path_provider.dart';
+import '../../core/utils/logger.dart';
 
 /// 火山语音合成双向流式API服务
+/// 
+/// 提供与火山语音TTS服务的WebSocket交互功能
+/// 用户需要自行管理会话状态，确保在使用完毕后调用 endSession
+/// 
+/// 基本使用流程：
+/// 1. 调用 startSession 开始会话
+/// 2. 调用 synthesize 合成文本
+/// 3. 调用 endSession 结束会话
+/// 
+/// 或者使用 speakSingle 一次性完成上述流程
 class VolcanoTtsApiService extends GetxController {
+  // 单例实例
+  static VolcanoTtsApiService? _instance;
+  
+  // 单例工厂方法
+  factory VolcanoTtsApiService() {
+    _instance ??= VolcanoTtsApiService._internal();
+    return _instance!;
+  }
+  
+  // 私有构造函数
+  VolcanoTtsApiService._internal() : 
+    _appId = dotenv.env['VOLCANO_TTS_APP_ID'] ?? '',
+    _token = dotenv.env['VOLCANO_TTS_APP_TOKEN'] ?? '',
+    _resourceId = dotenv.env['VOLCANO_TTS_RESOURCE_ID'] ?? '' {
+    if (_appId.isEmpty || _token.isEmpty) {
+      throw Exception('火山语音配置信息不完整，请检查环境变量 VOLCANO_TTS_APP_ID 和 VOLCANO_TTS_APP_TOKEN');
+    }
+  }
+  
   // 协议常量
   static const int _protocolVersion = 0x0001;
   static const int _defaultHeaderSize = 0x0001;
@@ -73,7 +103,6 @@ class VolcanoTtsApiService extends GetxController {
   
   // 状态控制
   bool _isConnected = false;
-  bool _isSessionActive = false;
   
   // 音频数据控制器
   final _audioDataController = StreamController<Uint8List>.broadcast();
@@ -83,6 +112,9 @@ class VolcanoTtsApiService extends GetxController {
   final _eventController = StreamController<Map<String, dynamic>>.broadcast();
   Stream<Map<String, dynamic>> get eventStream => _eventController.stream;
   
+  // 控制器状态
+  bool _isDisposed = false;
+  
   // 当前状态
   final isConnecting = false.obs;
   final isConnected = false.obs;
@@ -112,16 +144,6 @@ class VolcanoTtsApiService extends GetxController {
   DateTime? _lastCheckTime;
   int? _lastCheckedIndex;
   
-  // 构造函数
-  VolcanoTtsApiService() : 
-    _appId = dotenv.env['VOLCANO_TTS_APP_ID'] ?? '',
-    _token = dotenv.env['VOLCANO_TTS_APP_TOKEN'] ?? '',
-    _resourceId = dotenv.env['VOLCANO_TTS_RESOURCE_ID'] ?? '' {
-    if (_appId.isEmpty || _token.isEmpty) {
-      throw Exception('火山语音配置信息不完整，请检查环境变量 VOLCANO_TTS_APP_ID 和 VOLCANO_TTS_APP_TOKEN');
-    }
-  }
-  
   @override
   void onInit() {
     super.onInit();
@@ -295,14 +317,14 @@ class VolcanoTtsApiService extends GetxController {
   /// 连接到火山语音服务
   Future<bool> connect() async {
     if (_isConnected) {
+      Logger.info('TTS已连接，跳过连接');
       return true; // 已经连接
     }
-    print('连接');
     
-    try {
     isConnecting.value = true;
     
-
+    try {
+      Logger.info('开始TTS连接');
 
       // 生成连接ID
       _connectionId = const Uuid().v4();
@@ -313,7 +335,6 @@ class VolcanoTtsApiService extends GetxController {
       if (!kIsWeb && (io.Platform.isAndroid || io.Platform.isIOS || io.Platform.isMacOS || io.Platform.isLinux || io.Platform.isWindows)) {
         // 移动平台和桌面平台 - 使用IOWebSocketChannel
         
-        
         _channel = IOWebSocketChannel.connect(
           uri,
           headers: {
@@ -334,13 +355,20 @@ class VolcanoTtsApiService extends GetxController {
       // 监听消息
       _channel!.stream.listen(
         _handleMessage,
-        onError: _handleError,
+        onError: (error) {
+          // 直接处理错误，不尝试重连
+          Logger.error('WebSocket错误: $error');
+          if (!_isDisposed && !_eventController.isClosed) {
+            _eventController.add({
+              'eventType': 'error',
+              'error': error.toString()
+            });
+          }
+        },
         onDone: _handleDone,
         cancelOnError: false,
       );
       
-
-      
       // 发送开始连接事件
       await _startConnection();
       
@@ -348,32 +376,42 @@ class VolcanoTtsApiService extends GetxController {
       final completer = Completer<bool>();
       
       // 设置超时
-      final timeout = Timer(const Duration(seconds: 10), () {
+      Timer? timeout;
+      timeout = Timer(const Duration(seconds: 10), () {
         if (!completer.isCompleted) {
+          Logger.error('火山TTS连接超时');
           completer.complete(false);
-          _handleError(Exception('连接超时'));
+          
+          // 使用 try-catch 包裹错误处理，避免在计时器回调中出现未捕获的异常
+          try {
+            if (!_isDisposed && !_eventController.isClosed) {
+              _eventController.add({
+                'eventType': 'connectionFailed',
+                'error': '连接超时'
+              });
             }
+          } catch (e) {
+            Logger.error('处理TTS连接超时事件失败: $e');
+          }
+        }
+        timeout = null;
       });
       
-      
       // 监听连接事件
       final subscription = eventStream.listen((event) {
-
         if (event['eventType'] == 'connectionStarted') {
           if (!completer.isCompleted) {
-            if (kDebugMode) {
+            Logger.info('火山TTS连接成功');
-              print('连接成功');
-            }
             completer.complete(true);
-            timeout.cancel();
+            timeout?.cancel();
+            timeout = null;
           }
         } else if (event['eventType'] == 'connectionFailed') {
           if (!completer.isCompleted) {
-            if (kDebugMode) {
+            Logger.error('火山TTS连接失败: ${event['error']}');
-              print('连接失败: ${event['error']}');
-            }
             completer.complete(false);
-            timeout.cancel();
+            timeout?.cancel();
+            timeout = null;
           }
         }
       });
@@ -385,14 +423,13 @@ class VolcanoTtsApiService extends GetxController {
       if (result) {
         _isConnected = true;
         isConnected.value = true;
-
+        Logger.info('火山TTS连接成功完成');
       } 
+      
       return result;
     } catch (e) {
-      if (kDebugMode) {
+      // 只记录错误，不尝试重连
-        print('连接过程中发生异常: $e');
+      Logger.error('连接过程中发生异常: $e');
-      }
-      _handleError(e);
       return false;
     } finally {
       isConnecting.value = false;
@@ -400,18 +437,22 @@ class VolcanoTtsApiService extends GetxController {
   }
   
   /// 开始TTS会话
+  /// 
+  /// 用户需要自行管理会话状态，确保在使用完毕后调用 endSession
+  /// 
+  /// [speaker] 发音人ID
+  /// 
+  /// 返回会话是否成功开始
   Future<bool> startSession(String speaker) async {
-    print('开始会话');
+    Logger.info('开始TTS会话');
+    
+    try {
       if (!_isConnected) {
         final connected = await connect();
+        Logger.info('TTS未连接状态, 开始连接, 连接结果: $connected');
         if (!connected) return false;
       }
       
-    if (_isSessionActive) {
-      return true; // 会话已经活跃
-    }
-    
-    try {
       // 生成会话ID
       _sessionId = const Uuid().v4().replaceAll('-', '');
       
@@ -422,24 +463,40 @@ class VolcanoTtsApiService extends GetxController {
       final completer = Completer<bool>();
       
       // 设置超时
-      final timeout = Timer(const Duration(seconds: 10), () {
+      Timer? timeout;
+      timeout = Timer(const Duration(seconds: 10), () {
         if (!completer.isCompleted) {
+          Logger.error('火山TTS会话开始超时');
           completer.complete(false);
-          _handleError(Exception('会话开始超时'));
+          
+          // 使用 try-catch 包裹错误处理，避免在计时器回调中出现未捕获的异常
+          try {
+            _eventController.add({
+              'eventType': 'sessionFailed',
+              'error': '会话开始超时'
+            });
+          } catch (e) {
+            Logger.error('处理TTS会话超时事件失败: $e');
+          }
         }
+        timeout = null;
       });
       
       // 监听会话事件
       final subscription = eventStream.listen((event) {
         if (event['eventType'] == 'sessionStarted') {
           if (!completer.isCompleted) {
+            Logger.info('火山TTS会话开始成功');
             completer.complete(true);
-            timeout.cancel();
+            timeout?.cancel();
+            timeout = null;
           }
         } else if (event['eventType'] == 'sessionFailed') {
           if (!completer.isCompleted) {
+            Logger.error('火山TTS会话开始失败: ${event['error']}');
             completer.complete(false);
-            timeout.cancel();
+            timeout?.cancel();
+            timeout = null;
           }
         }
       });
@@ -449,29 +506,38 @@ class VolcanoTtsApiService extends GetxController {
       subscription.cancel();
       
       if (result) {
-        _isSessionActive = true;
+        Logger.info('火山TTS会话已完全建立');
       }
       
       return result;
     } catch (e) {
-      _handleError(e);
+      // 只记录错误，不尝试恢复
+      Logger.error('开始TTS会话失败: $e');
       return false;
     }
   }
   
   /// 合成文本
   Future<bool> synthesize(String text, String speaker) async {
+    if (text.isEmpty) {
+      Logger.warning('合成文本为空，跳过合成');
+      return false;
+    }
+    
+    try {
+      // 确保已连接
       if (!_isConnected) {
-      final connected = await connect();
+          Logger.error('TTS未连接，无法合成文本');
-      if (!connected) return false;
+          return false;
       }
       
-    if (!_isSessionActive) {
+      // 确保会话已开始
-      final sessionStarted = await startSession(speaker);
+      if (_sessionId == null) {
-      if (!sessionStarted) return false;
+          Logger.error('TTS会话未开始，请先调用startSession');
+          return false;
       }
       
-    try {
+      // 设置合成状态
       isSynthesizing.value = true;
       
       // 发送合成请求
@@ -485,11 +551,16 @@ class VolcanoTtsApiService extends GetxController {
   }
   
   /// 结束会话
+  /// 
+  /// 结束当前TTS会话，释放相关资源
+  /// 用户应在使用完毕后调用此方法
+  /// 
+  /// 返回会话是否成功结束
   Future<bool> endSession() async {
-    if (!_isSessionActive) {
+    if (_sessionId == null) {
       return true; // 没有活跃会话
     }
-    print('结束会话');
+    Logger.info('TTS结束会话');
   
     try {
       // 发送结束会话事件
@@ -519,7 +590,8 @@ class VolcanoTtsApiService extends GetxController {
       final result = await completer.future;
       subscription.cancel();
       
-      _isSessionActive = false;
+      // 清除会话ID
+      _sessionId = null;
       isSynthesizing.value = false;
       
       return result;
@@ -531,15 +603,14 @@ class VolcanoTtsApiService extends GetxController {
   
   /// 断开连接
   Future<bool> disconnect() async {
-
-    print('断开连接');
     if (!_isConnected) {
       return true; // 已经断开
     }
+    print('断开TTS连接');
 
     try {
       // 如果有活跃会话，先结束会话
-      if (_isSessionActive) {
+      if (_sessionId != null) {
         await endSession();
       }
       
@@ -575,7 +646,7 @@ class VolcanoTtsApiService extends GetxController {
       _channel = null;
       
       _isConnected = false;
-      _isSessionActive = false;
+      _sessionId = null;
       isConnected.value = false;
       isSynthesizing.value = false;
       
@@ -605,7 +676,7 @@ class VolcanoTtsApiService extends GetxController {
       
       // 处理事件
       final event = response['event'] as int?;
-      if (event != null) {
+      if (event != null && !_isDisposed && !_eventController.isClosed) {
         switch (event) {
           case eventConnectionStarted:
             _eventController.add({'eventType': 'connectionStarted'});
@@ -640,7 +711,10 @@ class VolcanoTtsApiService extends GetxController {
             if (payload != null && payload.isNotEmpty) {
               try {
                 _eventController.add({'eventType': 'ttsResponse'});
+                
+                if (!_isDisposed && !_audioDataController.isClosed) {
                   _audioDataController.add(payload);
+                }
                 
                 // 将音频数据添加到流中
                 _addAudioData(payload);
@@ -751,12 +825,14 @@ class VolcanoTtsApiService extends GetxController {
       }
     } catch (e) {
       // 直接报告错误，不尝试恢复
+      if (!_isDisposed && !_eventController.isClosed) {
         _eventController.add({
           'eventType': 'playbackError',
           'error': '添加音频到播放列表失败: $e'
         });
       }
     }
+  }
   
   /// 开始播放收集到的音频数据
   Future<void> _startPlayback() async {
@@ -784,35 +860,47 @@ class VolcanoTtsApiService extends GetxController {
       await _audioPlayer.play();
     } catch (e) {
       // 直接报告错误，不尝试恢复
+      if (!_isDisposed && !_eventController.isClosed) {
         _eventController.add({
           'eventType': 'playbackError',
           'error': '开始播放失败: $e'
         });
       }
     }
+  }
   
   /// 处理错误
   void _handleError(dynamic error) {
+    try {
+      // 只记录错误，不尝试恢复
+      if (!_isDisposed && !_eventController.isClosed) {
         _eventController.add({
           'eventType': 'error',
           'error': error.toString()
         });
+      }
       
-    if (kDebugMode) {
+      Logger.error('火山语音TTS错误: $error');
-      print('火山语音WebSocket错误: $error');
+    } catch (e) {
+      // 如果在处理错误时发生异常，记录到日志但不再抛出异常
+      Logger.error('处理TTS错误时发生异常: $e，原始错误: $error');
     }
   }
   
   /// 处理连接关闭
   void _handleDone() {
+    Logger.info('TTS WebSocket连接已关闭');
+    
+    // 重置所有状态
     _isConnected = false;
-    _isSessionActive = false;
+    _sessionId = null;
     isConnected.value = false;
     isSynthesizing.value = false;
     
+    // 通知监听者连接已断开
+    if (!_isDisposed && !_eventController.isClosed) {
       _eventController.add({'eventType': 'disconnected'});
-    
+    }
-
   }
   
   /// 解析响应
@@ -1202,9 +1290,18 @@ class VolcanoTtsApiService extends GetxController {
   /// 释放资源
   @override
   void onClose() async {
+    _isDisposed = true;
+    
     await disconnect();
-    _audioDataController.close();
+    
-    _eventController.close();
+    // 关闭控制器
+    if (!_audioDataController.isClosed) {
+      await _audioDataController.close();
+    }
+    
+    if (!_eventController.isClosed) {
+      await _eventController.close();
+    }
     
     // 释放资源
     _audioPlayer.dispose();
@@ -1223,11 +1320,6 @@ class VolcanoTtsApiService extends GetxController {
       // 合成文本
       final success = await synthesize(text, actualSpeaker);
       
-      if (!success) {
-        if (kDebugMode) {
-          print('合成文本失败');
-        }
-      }
       
       return success;
     } catch (e) {
@@ -1260,6 +1352,11 @@ class VolcanoTtsApiService extends GetxController {
     return _isPlaying.value;
   }
   
+  /// 检查会话是否活跃
+  bool isSessionActive() {
+    return _sessionId != null;
+  }
+  
   /// 设置音量
   Future<void> setVolume(double volume) async {
     try {
@@ -1290,11 +1387,13 @@ class VolcanoTtsApiService extends GetxController {
   /// 
   /// [text] 要合成的文本
   /// [speaker] 发音人，如果为null则使用默认发音人
-  /// [autoDisconnect] 合成完成后是否自动断开连接，默认为false
   /// 
   /// 返回合成是否成功
   Future<bool> speakSingle(String text, {String? speaker}) async {
-    if (text.isEmpty) return false;
+    if (text.isEmpty) {
+      Logger.warning('合成文本为空，跳过合成');
+      return false;
+    }
     
     try {
       // 使用默认发音人
@@ -1302,27 +1401,37 @@ class VolcanoTtsApiService extends GetxController {
       
       // 1. 确保连接
       if (!_isConnected) {
+        Logger.info('TTS未连接，开始连接');
         final connected = await connect();
-        if (!connected) return false;
+        if (!connected) {
+          Logger.error('TTS连接失败，无法合成文本');
+          return false;
+        }
       }
       
       // 2. 确保会话已开始
-      if (!_isSessionActive) {
+      final bool needNewSession = _sessionId == null;
+      if (needNewSession) {
+        Logger.info('TTS会话未开始，开始会话');
         final sessionStarted = await startSession(actualSpeaker);
-        if (!sessionStarted) return false;
+        if (!sessionStarted) {
+          Logger.error('TTS会话开始失败，无法合成文本');
+          return false;
+        }
       }
       
       // 3. 合成文本
       isSynthesizing.value = true;
       final success = await synthesize(text, actualSpeaker);
       
-      // 不再自动断开连接，让调用者决定何时结束会话和断开连接
+      // 如果是我们开始的新会话，则结束会话
+      if (needNewSession) {
         await endSession();
+      }
       
       return success;
     } catch (e) {
       _handleError(e);
-      
       return false;
     }
   }

lib/data/services/volcano_tts_service.dart

@@ -1,239 +0,0 @@
-import 'dart:async';
-import 'dart:io';
-import 'dart:collection';
-import 'package:get/get.dart';
-import 'package:flutter_dotenv/flutter_dotenv.dart';
-import 'package:flutter/services.dart';
-
-/// 火山语音服务异常
-class VolcanoTtsException implements Exception {
-  final String message;
-  final dynamic originalError;
-  
-  VolcanoTtsException(this.message, [this.originalError]);
-  
-  @override
-  String toString() => originalError != null 
-      ? '$message (原始错误: $originalError)' 
-      : message;
-}
-
-/// 火山语音合成服务 (极简版)
-/// 
-/// 直接使用原生端 VolcanoTtsHelper 的功能，不处理状态回调
-class VolcanoTtsService extends GetxService {
-  // 平台通道
-  static const MethodChannel _channel = MethodChannel('com.example.deep_voice/volcano_tts');
-  
-  // 配置参数
-  final String _appId;
-  final String _token;
-  final String _cluster;
-  final String _voiceType;
-
-  // 初始化状态
-  bool _isInitialized = false;
-  bool _isDisposed = false;
-  
-  // 服务启用状态
-  final isEnabled = true.obs;  // 默认启用
-  
-  // 音频质量参数
-  final double _defaultVolume = 1.0;
-  final double _defaultSpeed = 1.0;
-
-  VolcanoTtsService() : 
-    _appId = dotenv.env['VOLCANO_TTS_APP_ID'] ?? '',
-    _token = dotenv.env['VOLCANO_TTS_APP_TOKEN'] ?? '',
-    _cluster = dotenv.env['VOLCANO_TTS_CLUSTER'] ?? '',
-    _voiceType = dotenv.env['VOLCANO_TTS_VOICE_TYPE'] ?? '' {
-    if (_appId.isEmpty || _token.isEmpty || _cluster.isEmpty) {
-      throw VolcanoTtsException('火山语音配置信息不完整，请检查环境变量 VOLCANO_TTS_APP_ID, VOLCANO_TTS_APP_TOKEN 和 VOLCANO_TTS_CLUSTER');
-    }
-  }
-
-  @override
-  Future<void> onInit() async {
-    super.onInit();
-    try {
-      await _initializeTtsEngine();
-    } catch (e, stackTrace) {
-      print('初始化TTS服务失败: $e');
-      print('Stack trace: $stackTrace');
-    }
-  }
-
-  /// 初始化TTS引擎
-  Future<void> _initializeTtsEngine() async {
-    try {
-      print('开始初始化火山语音TTS引擎');
-      
-      final result = await _channel.invokeMethod<bool>('initialize', {
-        'appId': _appId,
-        'token': _token,
-        'cluster': _cluster,
-      });
-      
-      _isInitialized = result ?? false;
-      print('火山语音TTS引擎初始化${_isInitialized ? '成功' : '失败'}');
-      
-      if (!_isInitialized) {
-        throw VolcanoTtsException('TTS引擎初始化失败');
-      }
-      
-      // 设置默认音量和速度
-      await setVolume(_defaultVolume);
-      await setSpeed(_defaultSpeed);
-    } catch (e) {
-      print('初始化火山语音TTS引擎失败: $e');
-      _isInitialized = false;
-      throw VolcanoTtsException('初始化失败', e);
-    }
-  }
-
-  /// 合成并播放文本
-  /// 
-  /// [text] 要合成的文本
-  /// [voiceType] 可选的语音类型，如果提供，将覆盖默认语音类型
-  /// 
-  /// 返回一个Future，表示是否成功开始播放
-  Future<bool> speak(String text, {String? voiceType}) async {
-    if (text.trim().isEmpty) return false;
-    if (!isEnabled.value) return false;
-    if (!_isInitialized) {
-      print('TTS引擎尚未初始化');
-      return false;
-    }
-    
-    try {
-      print('开始播放文本: "${text.length > 20 ? text.substring(0, 20) + '...' : text}"');
-      
-      // 如果提供了语音类型，记录日志
-      if (voiceType != null && voiceType != _voiceType) {
-        print('使用临时语音类型: $voiceType (默认: $_voiceType)');
-      }
-      
-      // 直接调用原生方法合成并播放语音
-      final success = await _channel.invokeMethod<bool>('speakText', {
-        'text': text,
-        'voiceType': voiceType ?? _voiceType,
-      });
-      
-      return success ?? false;
-    } catch (e) {
-      print('语音合成失败: $e');
-      return false;
-    }
-  }
-
-  /// 停止播放
-  Future<bool> stop() async {
-    if (!_isInitialized) {
-      print('TTS引擎尚未初始化');
-      return false;
-    }
-    
-    try {
-      print('停止播放');
-      
-      // 调用原生方法停止播放
-      final success = await _channel.invokeMethod<bool>('stopSpeaking');
-      
-      print('已停止播放');
-      return success ?? false;
-    } catch (e) {
-      print('停止播放失败: $e');
-      return false;
-    }
-  }
-
-  /// 切换TTS启用状态
-  void toggleEnabled() {
-    isEnabled.toggle();
-    if (!isEnabled.value) {
-      stop();
-    }
-  }
-
-  /// 设置播放速度
-  Future<bool> setSpeed(double speed) async {
-    if (!_isInitialized) {
-      print('TTS引擎尚未初始化');
-      return false;
-    }
-    
-    if (speed < 0.5 || speed > 2.0) {
-      throw VolcanoTtsException('播放速度必须在0.5到2.0之间');
-    }
-    
-    try {
-      // 设置原生播放速度
-      final success = await _channel.invokeMethod<bool>('setSpeed', {
-        'speed': speed,
-      });
-      
-      return success ?? false;
-    } catch (e) {
-      print('设置播放速度失败: $e');
-      return false;
-    }
-  }
-
-  /// 设置音量
-  Future<bool> setVolume(double volume) async {
-    if (!_isInitialized) {
-      print('TTS引擎尚未初始化');
-      return false;
-    }
-    
-    if (volume < 0.0 || volume > 1.0) {
-      throw VolcanoTtsException('音量必须在0.0到1.0之间');
-    }
-    
-    try {
-      // 设置原生音量
-      final success = await _channel.invokeMethod<bool>('setVolume', {
-        'volume': volume,
-      });
-      
-      return success ?? false;
-    } catch (e) {
-      print('设置音量失败: $e');
-      return false;
-    }
-  }
-
-  /// 清理资源
-  Future<void> _cleanupResources() async {
-    _isDisposed = true;
-    await stop();
-    
-    // 释放原生资源
-    try {
-      await _channel.invokeMethod('dispose');
-    } catch (e) {
-      print('释放原生TTS资源失败: $e');
-    }
-  }
-
-  @override
-  void onClose() async {
-    print('关闭TTS服务');
-    await _cleanupResources();
-    super.onClose();
-  }
-
-  /// 获取当前语音类型
-  String getCurrentVoiceType() {
-    return _voiceType;
-  }
-  
-  /// 检查是否正在播放
-  bool get isPlaying => true;
-  
-  /// 检查是否正在合成（简化版，直接返回true）
-  bool isActuallySynthesizing() {
-    return true;
-  }
-  
-} 

lib/modules/chat/controllers/chat_controller.dart

@@ -4,7 +4,7 @@ import 'package:flutter/widgets.dart';
 import '../models/message_model.dart';
 import '../../../data/services/volcano_ai_service.dart';
 import '../../../data/services/volcano_tts_api_service.dart';
-import '../../../data/services/azure_asr_service.dart';
+import '../../../data/services/volcano_asr_api_service.dart';
 import '../../../data/providers/agent_provider.dart';
 import '../../../data/models/agent.dart';
 import '../../../core/utils/logger.dart';
@@ -14,7 +14,7 @@ class ChatController extends GetxController {
   // 服务
   final VolcanoAIService _aiService = Get.find<VolcanoAIService>();
   final VolcanoTtsApiService _ttsService = Get.find<VolcanoTtsApiService>();
-  final AzureAsrService _asrService = Get.find<AzureAsrService>();
+  final VolcanoAsrApiService _asrService = Get.find<VolcanoAsrApiService>();
   final ChatHistoryService _historyService = Get.find<ChatHistoryService>();
 
   // 添加ScrollController用于控制列表滚动
@@ -41,6 +41,8 @@ class ChatController extends GetxController {
 
   // 临时消息ID，用于语音识别中的消息
   String? _tempRecognitionMessageId;
+  // 临时消息的索引，用于更新临时消息
+  int _tempMessageIndex = -1;
 
   // 流式响应控制
   StreamSubscription? _aiResponseSubscription;
@@ -86,7 +88,7 @@ class ChatController extends GetxController {
 
     // 如果playVoiceOnEnter为true，自动激活语音识别
     if (args['playVoiceOnEnter'] == true) {
-      // 延迟一段时间后激活语音识别，等待TTS播放完成
+
         startVoiceRecognition();
     }
 
@@ -112,7 +114,7 @@ class ChatController extends GetxController {
 
     // 停止语音识别
     if (isVoiceRecognitionActive.value) {
-      _asrService.stopContinuousRecognition();
+      _asrService.stopRecognition();
     }
 
     super.onClose();
@@ -300,8 +302,6 @@ class ChatController extends GetxController {
 
   // 开始语音识别
   Future<void> startVoiceRecognition() async {
-
-
     if (isVoiceRecognitionActive.value) return;
 
     // 每次收到新内容后滚动到底部
@@ -323,17 +323,19 @@ class ChatController extends GetxController {
 
     try {
       // 启动语音识别
-      final success = await _asrService.startContinuousRecognition();
+      final success = await _asrService.startRecognition();
 
       if (success) {
         isVoiceRecognitionActive.value = true;
         isListening.value = true;
         recognizedText.value = '';
         
-        // 不再添加"正在聆听..."的临时消息
+        // 重置临时消息索引
+        _tempMessageIndex = -1;
+        _tempRecognitionMessageId = null;
 
         // 监听识别事件
-        _recognitionSubscription = _asrService.recognitionStream?.listen(
+        _recognitionSubscription = _asrService.recognitionStream.listen(
           (event) {
             switch (event.type) {
               case RecognitionEventType.recognizing:
@@ -342,22 +344,18 @@ class ChatController extends GetxController {
                   recognizedText.value = event.text;
 
                   // 检查是否已经有临时消息
-                  final tempMessageIndex = messages.indexWhere((m) =>
+                  if (_tempMessageIndex >= 0 && _tempMessageIndex < messages.length) {
-                      m.role == 'user' &&
-                      m.timestamp.millisecondsSinceEpoch >
-                          DateTime.now().millisecondsSinceEpoch - 5000);
-
-                  if (tempMessageIndex >= 0) {
                     // 更新已有的临时消息
-                    messages[tempMessageIndex] =
+                    messages[_tempMessageIndex] =
-                        messages[tempMessageIndex].copyWith(
+                        messages[_tempMessageIndex].copyWith(
                       content: event.text,
                     );
+                    messages.refresh();
+
                     // 每次收到新内容后滚动到底部
                     Future.delayed(
                         Duration(milliseconds: 100), _scrollToBottom);
                     // 使用refresh()方法刷新列表
-                    messages.refresh();
                   } else {
                     // 添加新的临时消息，但只有在有实际内容时
                     final tempMessage = Message(
@@ -365,7 +363,13 @@ class ChatController extends GetxController {
                       content: event.text,
                       timestamp: DateTime.now(),
                     );
+                    // 不使用ID，直接使用索引跟踪临时消息
                     messages.add(tempMessage);
+                    _tempMessageIndex = messages.length - 1;
+                    messages.refresh();
+
+                    // 滚动到底部显示新消息
+                    Future.delayed(Duration(milliseconds: 100), _scrollToBottom);
                   }
                 }
                 break;
@@ -375,58 +379,67 @@ class ChatController extends GetxController {
                   recognizedText.value = event.text;
 
                   // 查找并移除临时消息
-                  final tempMessageIndex = messages.indexWhere((m) =>
+                  if (_tempMessageIndex >= 0 && _tempMessageIndex < messages.length) {
-                      m.role == 'user' &&
+                    messages.removeAt(_tempMessageIndex);
-                      m.timestamp.millisecondsSinceEpoch >
-                          DateTime.now().millisecondsSinceEpoch - 5000);
-
-                  if (tempMessageIndex >= 0) {
-                    messages.removeAt(tempMessageIndex);
                   }
                   
+                  // 重置临时消息索引
+                  _tempMessageIndex = -1;
+                  _tempRecognitionMessageId = null;
+
                   // 发送识别到的文本
                   sendMessage(event.text);
 
-                  // 重置识别文本
+                  // 重置识别文本，但不关闭语音识别框
                   recognizedText.value = '';
                 }
                 break;
-              case RecognitionEventType.sessionStopped:
+              case RecognitionEventType.error:
-              case RecognitionEventType.canceled:
+                // 错误处理，关闭语音识别框，不尝试重新启动
-                // 会话结束
+                Logger.error('语音识别错误: ${event.error}');
-                isVoiceRecognitionActive.value = false;
-                isListening.value = false;
                 
                 // 查找并移除临时消息
-                final tempMessageIndex = messages.indexWhere((m) =>
+                if (_tempMessageIndex >= 0 && _tempMessageIndex < messages.length) {
-                    m.role == 'user' &&
+                  if (messages[_tempMessageIndex].content.trim().isEmpty) {
-                    m.timestamp.millisecondsSinceEpoch >
+                    messages.removeAt(_tempMessageIndex);
-                        DateTime.now().millisecondsSinceEpoch - 5000);
+                  }
-
-                if (tempMessageIndex >= 0 &&
-                    messages[tempMessageIndex].content.trim().isEmpty) {
-                  messages.removeAt(tempMessageIndex);
                 }
+                
+                // 重置临时消息索引
+                _tempMessageIndex = -1;
+                _tempRecognitionMessageId = null;
+                
+                // 停止语音识别
+                isVoiceRecognitionActive.value = false;
+                isListening.value = false;
+                _asrService.stopRecognition();
+
                 break;
               default:
+                // 不做任何处理，保持语音识别持续运行
                 break;
             }
           },
           onError: (error) {
+            // 错误处理，关闭语音识别框，不尝试重新启动
             Logger.error('语音识别错误', error);
-            isVoiceRecognitionActive.value = false;
-            isListening.value = false;
             
             // 查找并移除临时消息
-            final tempMessageIndex = messages.indexWhere((m) =>
+            if (_tempMessageIndex >= 0 && _tempMessageIndex < messages.length) {
-                m.role == 'user' &&
+              if (messages[_tempMessageIndex].content.trim().isEmpty) {
-                m.timestamp.millisecondsSinceEpoch >
+                messages.removeAt(_tempMessageIndex);
-                    DateTime.now().millisecondsSinceEpoch - 5000);
-
-            if (tempMessageIndex >= 0 &&
-                messages[tempMessageIndex].content.trim().isEmpty) {
-              messages.removeAt(tempMessageIndex);
               }
+            }
+            
+            // 重置临时消息索引
+            _tempMessageIndex = -1;
+            _tempRecognitionMessageId = null;
+            
+            // 停止语音识别
+            isVoiceRecognitionActive.value = false;
+            isListening.value = false;
+            _asrService.stopRecognition();
+         
           },
         );
       } else {
@@ -444,7 +457,7 @@ class ChatController extends GetxController {
     if (!isVoiceRecognitionActive.value) return;
 
     try {
-      await _asrService.stopContinuousRecognition();
+      await _asrService.stopRecognition();
       _recognitionSubscription?.cancel();
       _recognitionSubscription = null;
 
@@ -453,15 +466,15 @@ class ChatController extends GetxController {
       recognizedText.value = '';
 
       // 查找并移除临时消息
-      final tempMessageIndex = messages.indexWhere((m) =>
+      if (_tempMessageIndex >= 0 && _tempMessageIndex < messages.length) {
-          m.role == 'user' &&
+        if (messages[_tempMessageIndex].content.trim().isEmpty) {
-          m.timestamp.millisecondsSinceEpoch >
+          messages.removeAt(_tempMessageIndex);
-              DateTime.now().millisecondsSinceEpoch - 5000);
-
-      if (tempMessageIndex >= 0 &&
-          messages[tempMessageIndex].content.trim().isEmpty) {
-        messages.removeAt(tempMessageIndex);
         }
+      }
+      
+      // 重置临时消息索引和ID
+      _tempMessageIndex = -1;
+      _tempRecognitionMessageId = null;
     } catch (e) {
       Logger.error('停止语音识别失败', e);
     }

lib/modules/chat/views/chat_view.dart

@@ -365,9 +365,9 @@ class ChatView extends GetView<ChatController> {
           children: List.generate(
             barCount,
             (index) {
-              // 创建动态高度效果
+              // 创建动态高度效果，确保高度始终为正值
               double height = isRec
-                  ? _getWaveHeight(index, isSpeaking, barCount).clamp(1.h, 22.5.h) 
+                  ? _getWaveHeight(index, isSpeaking, barCount).clamp(2.h, 22.5.h) 
                   : 2.h;
                   
               // 动画持续时间
@@ -401,7 +401,7 @@ class ChatView extends GetView<ChatController> {
                     duration: duration,
                     curve: isSpeaking ? Curves.elasticOut : Curves.easeInOut,
                     width: isSpeaking ? 2.8.w : 2.5.w,
-                    height: height,
+                    height: height > 0 ? height : 2.h, // 确保高度始终为正值
                     margin: EdgeInsets.symmetric(horizontal: 1.2.w),
                     decoration: BoxDecoration(
                       color: barColor,
@@ -411,6 +411,7 @@ class ChatView extends GetView<ChatController> {
                           color: AppColors.primary.withOpacity(0.4),
                           blurRadius: 5,
                           spreadRadius: 1.2,
+                          offset: const Offset(0, 0), // 确保偏移量不为null
                         )
                       ] : null,
                     ),
@@ -452,15 +453,19 @@ class ChatView extends GetView<ChatController> {
           ? 1.0 - (distanceFromMiddle / middleIndex) * 0.2
           : 1.0 - (distanceFromMiddle / middleIndex) * 0.5;
       
+      // 确保positionFactor不为负值
+      positionFactor = max(0.1, positionFactor);
+      
+      double result;
       if (isSpeaking) {
         // 用户说话时的波形
         double timeFactor = 0.9 + sin(milliseconds / 600) * 0.5;
         
         // 增强中心突出效果
-        double centerBoost = pow(positionFactor, 1.2) * 10.h;
+        double centerBoost = pow(positionFactor, 1.2).toDouble() * 10.h;
         
-        // 增加随机性
+        // 增加随机性，但限制范围
-        double randomFactor = (Random().nextDouble() * 4 - 2) * 1.75.h;
+        double randomFactor = (Random().nextDouble() * 3) * 1.75.h;
         
         // 增强脉冲效果
         double pulseEffect = sin(milliseconds / 300) * 2.5.h * positionFactor;
@@ -474,14 +479,17 @@ class ChatView extends GetView<ChatController> {
           burstEffect = 5.h * positionFactor;
         }
         
-        return baseHeight + (wave1 + wave2 + wave3 + wave4) * timeFactor + 
+        result = baseHeight + (wave1 + wave2 + wave3 + wave4) * timeFactor + 
                centerBoost + randomFactor + pulseEffect + voiceVariation + burstEffect;
       } else {
         // 用户不说话时的波形
         double idleWave = (wave1 + wave2) * 0.35 * positionFactor;
         double gentlePulse = sin(milliseconds / 800) * 1.h * positionFactor;
-        return baseHeight + idleWave + gentlePulse;
+        result = baseHeight + idleWave + gentlePulse;
       }
+      
+      // 确保返回值始终为正数
+      return max(2.h, result);
     } catch (e) {
       // 发生错误时返回默认高度
       return 2.h;

lib/modules/home/views/home_view.dart

@@ -3,6 +3,7 @@ import 'package:get/get.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import '../controllers/home_controller.dart';
 import '../../../core/widgets/common_bottom_nav.dart';
+import '../../../core/routes/app_routes.dart';
 
 class HomeView extends GetView<HomeController> {
   const HomeView({Key? key}) : super(key: key);
@@ -271,6 +272,7 @@ class HomeView extends GetView<HomeController> {
                 ),
               ),
               _buildActionButton(),
+
               SizedBox(height: 40.h),
             ],
           ),

lib/modules/profile/views/profile_view.dart

@@ -71,14 +71,7 @@ class ProfileView extends GetView<ProfileController> {
               // TODO: 实现关于页面
             },
           ),
-          const Divider(),
+
-          _buildMenuItem(
-            title: '检查更新'.tr,
-            icon: Icons.system_update,
-            onTap: () {
-              // TODO: 实现检查更新
-            },
-          ),
           const Divider(),
           _buildMenuItem(
             title: '清除缓存'.tr,
@@ -126,6 +119,17 @@ class ProfileView extends GetView<ProfileController> {
               Get.toNamed(Routes.TTS_TEST);
             },
           ),
+  
+
+          const Divider(),
+          _buildMenuItem(
+            title: '火山语音识别测试'.tr,
+            icon: Icons.mic_external_on,
+            subtitle: '测试火山语音ASR功能',
+            onTap: () {
+              Get.toNamed(Routes.VOLCANO_ASR_TEST);
+            },
+          ),
                     const Divider(),
           _buildMenuItem(
             title: 'Azure语音识别测试'.tr,
@@ -135,6 +139,24 @@ class ProfileView extends GetView<ProfileController> {
               Get.toNamed(Routes.ASR_TEST);
             },
           ),
+          const Divider(),
+          _buildMenuItem(
+            title: '本地语音合成测试'.tr,
+            icon: Icons.speaker_phone,
+            subtitle: '测试Flutter TTS本地语音合成功能',
+            onTap: () {
+              Get.toNamed(Routes.FLUTTER_TTS_TEST);
+            },
+          ),
+          const Divider(),
+          _buildMenuItem(
+            title: '本地语音识别测试'.tr,
+            icon: Icons.mic_none,
+            subtitle: '测试Flutter本地语音识别功能',
+            onTap: () {
+              Get.toNamed(Routes.FLUTTER_ASR_TEST);
+            },
+          ),
         ],
       ),
       bottomNavigationBar: const CommonBottomNav(currentIndex: 2),

lib/modules/test/bindings/flutter_asr_test_binding.dart

@@ -0,0 +1,16 @@
+import 'package:get/get.dart';
+import '../controllers/flutter_asr_test_controller.dart';
+import '../../../data/services/flutter_asr_service.dart';
+
+class FlutterAsrTestBinding extends Bindings {
+  @override
+  void dependencies() {
+    // 注册ASR服务（如果尚未注册）
+    if (!Get.isRegistered<FlutterAsrService>()) {
+      Get.lazyPut<FlutterAsrService>(() => FlutterAsrService());
+    }
+    
+    // 注册控制器
+    Get.lazyPut<FlutterAsrTestController>(() => FlutterAsrTestController());
+  }
+} 

lib/modules/test/bindings/flutter_tts_test_binding.dart

@@ -0,0 +1,10 @@
+import 'package:get/get.dart';
+import '../controllers/flutter_tts_test_controller.dart';
+
+/// Flutter TTS测试绑定
+class FlutterTtsTestBinding extends Bindings {
+  @override
+  void dependencies() {
+    Get.lazyPut<FlutterTtsTestController>(() => FlutterTtsTestController());
+  }
+} 

lib/modules/test/bindings/volcano_asr_test_binding.dart

@@ -0,0 +1,10 @@
+import 'package:get/get.dart';
+import '../controllers/volcano_asr_test_controller.dart';
+
+class VolcanoAsrTestBinding extends Bindings {
+  @override
+  void dependencies() {
+    // Use put instead of lazyPut to ensure the controller is created immediately
+    Get.put<VolcanoAsrTestController>(VolcanoAsrTestController());
+  }
+} 

lib/modules/test/controllers/flutter_asr_test_controller.dart

@@ -0,0 +1,154 @@
+import 'dart:async';
+import 'package:get/get.dart';
+import '../../../data/services/flutter_asr_service.dart';
+import '../../../core/utils/logger.dart';
+
+/// Flutter ASR测试控制器，演示如何使用FlutterAsrService
+class FlutterAsrTestController extends GetxController {
+  // 获取ASR服务实例
+  final FlutterAsrService _asrService = Get.find<FlutterAsrService>();
+  
+  // 当前ASR状态 - 使用Rx包装以便UI可以响应变化
+  final Rx<AsrState> _asrState = AsrState.notInitialized.obs;
+  AsrState get asrState => _asrState.value;
+  
+  // 当前识别的文本 - 使用Rx包装以便UI可以响应变化
+  final RxString _recognizedText = ''.obs;
+  String get recognizedText => _recognizedText.value;
+  
+  // 识别准确度 - 使用Rx包装以便UI可以响应变化
+  final RxDouble _confidence = 0.0.obs;
+  double get confidence => _confidence.value;
+  
+  // 是否正在监听 - 计算属性
+  bool get isListening => asrState == AsrState.listening;
+  
+  // 是否可用 - 使用Rx包装以便UI可以响应变化
+  final RxBool _isAvailable = false.obs;
+  bool get isAvailable => _isAvailable.value;
+  
+  // 可用的语言列表 - 使用Rx包装以便UI可以响应变化
+  final RxList<dynamic> _locales = <dynamic>[].obs;
+  List<dynamic> get locales => _locales;
+  
+  // 当前选择的语言 - 使用Rx包装以便UI可以响应变化
+  final RxString _currentLocale = ''.obs;
+  String get currentLocale => _currentLocale.value;
+  
+  // 历史记录 - 使用Rx包装以便UI可以响应变化
+  final RxList<String> _history = <String>[].obs;
+  List<String> get history => _history;
+  
+  // 连续识别模式 - 使用Rx包装以便UI可以响应变化
+  final RxBool _continuousMode = false.obs;
+  bool get continuousMode => _continuousMode.value;
+  set continuousMode(bool value) => _continuousMode.value = value;
+  
+  // 定时器，用于定期更新状态
+  late Timer _updateTimer;
+  
+  // 识别结果订阅
+  StreamSubscription<String>? _resultSubscription;
+  
+  @override
+  void onInit() {
+    super.onInit();
+    
+    // 初始化状态
+    _updateState();
+    
+    // 设置定时器，每300毫秒更新一次状态，确保UI能够及时反映服务状态变化
+    _updateTimer = Timer.periodic(const Duration(milliseconds: 300), (_) {
+      _updateState();
+      
+      // 如果启用了连续模式，且当前不在监听状态，且ASR已初始化，则自动重新开始监听
+      if (_continuousMode.value && 
+          _asrState.value != AsrState.listening && 
+          _asrState.value != AsrState.notInitialized &&
+          _asrState.value != AsrState.error &&
+          _isAvailable.value) {
+        _restartListening();
+      }
+    });
+    
+    // 订阅识别结果流
+    _resultSubscription = _asrService.recognitionResults.listen(_onFinalResult);
+  }
+  
+  /// 更新控制器状态，从服务获取最新状态
+  void _updateState() {
+    _asrState.value = _asrService.asrState;
+    _recognizedText.value = _asrService.lastWords;
+    _confidence.value = _asrService.confidence;
+    _isAvailable.value = _asrService.isAvailable;
+    _locales.assignAll(_asrService.locales);
+    _currentLocale.value = _asrService.currentLocale;
+  }
+  
+  /// 开始语音识别
+  Future<bool> startListening() async {
+    return await _asrService.startListening();
+  }
+  
+  /// 停止语音识别
+  Future<void> stopListening() async {
+    await _asrService.stopListening();
+  }
+  
+  /// 取消语音识别
+  Future<void> cancelListening() async {
+    await _asrService.cancelListening();
+  }
+  
+  /// 切换连续识别模式
+  void toggleContinuousMode() {
+    _continuousMode.value = !_continuousMode.value;
+    Logger.info('连续识别模式: ${_continuousMode.value ? '开启' : '关闭'}');
+    
+    // 如果开启连续模式且当前未在监听，则开始监听
+    if (_continuousMode.value && !isListening && _isAvailable.value) {
+      startListening();
+    }
+  }
+  
+  /// 重新开始监听（用于连续模式）
+  Future<void> _restartListening() async {
+    // 添加小延迟，避免过于频繁的重启
+    await Future.delayed(const Duration(milliseconds: 300));
+    if (_continuousMode.value && !isListening && _isAvailable.value) {
+      Logger.info('连续模式: 重新开始监听');
+      await startListening();
+    }
+  }
+  
+  /// 设置语言
+  void setLocale(String localeId) {
+    _asrService.setLocale(localeId);
+    _currentLocale.value = localeId;
+  }
+  
+  /// 处理最终识别结果
+  void _onFinalResult(String result) {
+    if (result.isNotEmpty) {
+      // 添加到历史记录
+      _history.insert(0, result);
+      
+      // 限制历史记录数量
+      if (_history.length > 10) {
+        _history.removeLast();
+      }
+    }
+  }
+  
+  /// 清空历史记录
+  void clearHistory() {
+    _history.clear();
+  }
+  
+  @override
+  void onClose() {
+    _updateTimer.cancel();
+    _resultSubscription?.cancel();
+    super.onClose();
+  }
+} 

lib/modules/test/controllers/flutter_tts_test_controller.dart

@@ -0,0 +1,163 @@
+import 'package:get/get.dart';
+import '../../../data/services/flutter_tts_service.dart';
+import '../../../core/utils/logger.dart';
+import 'dart:async';
+
+/// Flutter TTS测试控制器，演示如何使用FlutterTtsService
+class FlutterTtsTestController extends GetxController {
+  // 获取TTS服务实例
+  final FlutterTtsService _ttsService = Get.find<FlutterTtsService>();
+  
+  // 当前TTS状态 - 使用Rx包装以便UI可以响应变化
+  final Rx<TtsState> _ttsState = TtsState.stopped.obs;
+  TtsState get ttsState => _ttsState.value;
+  
+  // 当前正在播放的文本 - 使用Rx包装以便UI可以响应变化
+  final RxString _currentText = ''.obs;
+  String get currentText => _currentText.value;
+  
+  // 是否正在播放 - 计算属性
+  bool get isPlaying => ttsState == TtsState.playing;
+  
+  // 队列中的文本 - 使用Rx包装以便UI可以响应变化
+  final RxList<String> _textQueue = <String>[].obs;
+  List<String> get textQueue => _textQueue;
+  
+  // 可用的语音列表 - 使用Rx包装以便UI可以响应变化
+  final RxList<Map<String, String>> _voices = <Map<String, String>>[].obs;
+  List<Map<String, String>> get voices => _voices;
+  
+  // 当前选择的语音 - 使用Rx包装以便UI可以响应变化
+  final RxString _currentVoice = ''.obs;
+  String get currentVoice => _currentVoice.value;
+  
+  // 定时器，用于定期更新状态
+  late Timer _updateTimer;
+  
+  @override
+  void onInit() {
+    super.onInit();
+    
+    // 初始化状态
+    _updateState();
+    
+    // 设置定时器，每300毫秒更新一次状态，确保UI能够及时反映服务状态变化
+    _updateTimer = Timer.periodic(const Duration(milliseconds: 300), (_) {
+      _updateState();
+    });
+  }
+  
+  /// 更新控制器状态，从服务获取最新状态
+  void _updateState() {
+    // 更新TTS状态
+    final serviceState = _ttsService.ttsState;
+    if (_ttsState.value != serviceState) {
+      _ttsState.value = serviceState;
+    }
+    
+    // 更新当前播放文本
+    final serviceText = _ttsService.currentText;
+    if (_currentText.value != serviceText) {
+      _currentText.value = serviceText;
+    }
+    
+    // 更新队列
+    final serviceQueue = _ttsService.textQueue;
+    if (!listEquals(_textQueue, serviceQueue)) {
+      _textQueue.value = List.from(serviceQueue);
+    }
+    
+    // 更新可用语音列表
+    final serviceVoices = _ttsService.voices;
+    if (!listEquals(_voices, serviceVoices)) {
+      _voices.value = List.from(serviceVoices);
+    }
+    
+    // 更新当前选择的语音
+    final serviceCurrentVoice = _ttsService.currentVoice;
+    if (_currentVoice.value != serviceCurrentVoice) {
+      _currentVoice.value = serviceCurrentVoice;
+    }
+  }
+  
+  /// 比较两个列表是否相等
+  bool listEquals<T>(List<T> a, List<T> b) {
+    if (a.length != b.length) return false;
+    for (int i = 0; i < a.length; i++) {
+      if (a[i] != b[i]) return false;
+    }
+    return true;
+  }
+  
+  /// 添加文本到队列并开始播放（如果尚未开始）
+  Future<void> speak(String text) async {
+    if (text.isEmpty) {
+      Logger.warning('文本为空，无法播放');
+      return;
+    }
+    
+    await _ttsService.speak(text);
+    _updateState();
+  }
+  
+  /// 添加多条文本到队列并开始播放（如果尚未开始）
+  Future<void> speakTexts(List<String> texts) async {
+    if (texts.isEmpty) {
+      Logger.warning('文本列表为空，无法播放');
+      return;
+    }
+    
+    await _ttsService.speakTexts(texts);
+    _updateState();
+  }
+  
+  /// 停止播放并清空队列
+  Future<void> stop() async {
+    await _ttsService.stop();
+    _updateState();
+  }
+  
+  /// 暂停播放
+  Future<void> pause() async {
+    await _ttsService.pause();
+    _updateState();
+  }
+  
+  /// 设置语音
+  Future<void> setVoice(String voiceName) async {
+    await _ttsService.setVoice(voiceName);
+    _updateState();
+  }
+  
+  /// 设置语言
+  Future<void> setLanguage(String language) async {
+    await _ttsService.setLanguage(language);
+  }
+  
+  /// 设置语速
+  Future<void> setRate(double rate) async {
+    await _ttsService.setRate(rate);
+  }
+  
+  /// 设置音量
+  Future<void> setVolume(double volume) async {
+    await _ttsService.setVolume(volume);
+  }
+  
+  /// 设置音调
+  Future<void> setPitch(double pitch) async {
+    await _ttsService.setPitch(pitch);
+  }
+  
+  /// 清空队列并停止播放
+  Future<void> clearQueue() async {
+    await _ttsService.clearQueue();
+    _updateState();
+  }
+  
+  @override
+  void onClose() {
+    _updateTimer.cancel();
+    super.onClose();
+  }
+} 

lib/modules/test/controllers/volcano_asr_test_controller.dart

@@ -0,0 +1,218 @@
+import 'dart:async';
+import 'package:get/get.dart';
+import '../../../data/services/volcano_asr_api_service.dart';
+import '../../../core/utils/logger.dart';
+
+class VolcanoAsrTestController extends GetxController {
+  // Observable variables
+  final isListening = false.obs;
+  final errorMessage = ''.obs;
+  final recognitionResults = <String>[].obs;
+  final isContinuous = false.obs;
+  final connectionStatus = 'Disconnected'.obs;
+  
+  // 当前识别中的文本
+  final currentRecognizingText = ''.obs;
+  
+  // 当前识别的索引
+  int _currentRecognitionIndex = -1;
+
+  // Services
+  late final VolcanoAsrApiService _asrService;
+  
+  // Stream subscriptions
+  StreamSubscription? _recognitionSubscription;
+
+  @override
+  void onInit() {
+    super.onInit();
+    
+    // Initialize the ASR service
+    _asrService = Get.find<VolcanoAsrApiService>();
+    
+    // Subscribe to recognition stream
+    _recognitionSubscription = _asrService.recognitionStream.listen((event) {
+      switch (event.type) {
+        case RecognitionEventType.started:
+          // 开始新的识别
+          if (isContinuous.value) {
+            // 如果是连续模式，检查是否需要创建新条目
+            if (_currentRecognitionIndex == -1 || recognitionResults.isEmpty) {
+              // 如果没有当前识别索引或结果列表为空，添加新条目
+              recognitionResults.add('');
+              _currentRecognitionIndex = recognitionResults.length - 1;
+            }
+          } else {
+            // 非连续模式，清空结果并添加新条目
+            recognitionResults.clear();
+            recognitionResults.add('');
+            _currentRecognitionIndex = 0;
+          }
+          currentRecognizingText.value = '';
+          break;
+          
+        case RecognitionEventType.recognizing:
+          // 实时识别结果
+          if (event.text.isNotEmpty) {
+            currentRecognizingText.value = event.text;
+            
+            // 确保有一个当前条目可以更新
+            if (_currentRecognitionIndex == -1 || _currentRecognitionIndex >= recognitionResults.length) {
+              recognitionResults.add('');
+              _currentRecognitionIndex = recognitionResults.length - 1;
+            }
+            
+            // 更新当前条目
+            recognitionResults[_currentRecognitionIndex] = event.text;
+          }
+          break;
+          
+        case RecognitionEventType.finalResult:
+          // 最终识别结果
+          if (event.text.isNotEmpty) {
+            // 确保有一个当前条目可以更新
+            if (_currentRecognitionIndex == -1 || _currentRecognitionIndex >= recognitionResults.length) {
+              recognitionResults.add(event.text);
+              _currentRecognitionIndex = recognitionResults.length - 1;
+            } else {
+              // 更新当前条目为最终结果
+              recognitionResults[_currentRecognitionIndex] = event.text;
+            }
+            
+            // 收到最终结果后，重置索引，为新句子做准备
+            _currentRecognitionIndex = -1;
+            
+            // 清空当前识别文本
+            currentRecognizingText.value = '';
+          }
+          break;
+          
+        case RecognitionEventType.error:
+          // 错误处理
+          if (event.error != null) {
+            errorMessage.value = event.error!;
+            
+            // 如果有错误且正在识别，停止识别
+            if (isListening.value) {
+              isListening.value = false;
+              connectionStatus.value = 'Disconnected';
+              
+              // 停止语音识别，不尝试重启
+              _asrService.stopRecognition();
+      
+            }
+          }
+          break;
+          
+        // 注意：处理其他事件类型
+        default:
+          // 其他事件类型不做特殊处理
+          break;
+      }
+    });
+    
+    // Update connection status based on service state
+    ever(_asrService.isListening, (bool listening) {
+      isListening.value = listening;
+      connectionStatus.value = listening ? 'Connected' : 'Disconnected';
+    });
+    
+    // Update error message from service
+    if (_asrService.errorMessage.isNotEmpty) {
+      errorMessage.value = _asrService.errorMessage;
+    }
+  }
+
+  @override
+  void onClose() {
+    // Cancel all subscriptions
+    _recognitionSubscription?.cancel();
+    
+    // Disconnect from the ASR service if still connected
+    if (_asrService.isConnected) {
+      stopListening();
+    }
+    
+    super.onClose();
+  }
+
+  // Start listening for speech
+  Future<void> startListening() async {
+    try {
+      // Clear previous error message
+      errorMessage.value = '';
+      
+      // 如果是新的识别会话
+      if (!isListening.value) {
+        currentRecognizingText.value = '';
+        
+        // 如果不是连续识别模式，则清空结果列表
+        if (!isContinuous.value) {
+          recognitionResults.clear();
+          _currentRecognitionIndex = -1;
+        }
+      }
+      
+      // 使用麦克风录音功能
+      final success = await _asrService.startRecognition(
+        sampleRate: 16000,
+        bitsPerSample: 16,
+        channels: 1,
+        format: 'pcm',
+        codec: 'raw',
+        enablePunc: true,
+      );
+      
+      if (success) {
+        isListening.value = true;
+        connectionStatus.value = 'Connected';
+      } else {
+        errorMessage.value = _asrService.errorMessage;
+        Logger.error('Failed to start recognition: ${_asrService.errorMessage}');
+      }
+    } catch (e) {
+      errorMessage.value = e.toString();
+      Logger.error('Error starting recognition: $e');
+    }
+  }
+
+  // 重新开始识别（用于连续识别模式）
+  Future<void> _restartRecognition() async {
+    // 短暂延迟，确保上一次识别完全结束
+    await Future.delayed(const Duration(milliseconds: 500));
+    
+    // 如果仍处于监听状态且是连续识别模式，则开始新的识别
+    if (isListening.value && isContinuous.value) {
+      startListening();
+    }
+  }
+
+  // Stop listening for speech
+  void stopListening() {
+    try {
+      connectionStatus.value = 'Disconnecting...';
+      
+      // 停止麦克风录音
+      _asrService.stopRecognition().then((_) {
+        isListening.value = false;
+        connectionStatus.value = 'Disconnected';
+        
+        // 重置当前识别索引
+        _currentRecognitionIndex = -1;
+      }).catchError((e) {
+        errorMessage.value = e.toString();
+        Logger.error('Error stopping recognition: $e');
+      });
+    } catch (e) {
+      errorMessage.value = e.toString();
+      Logger.error('Error stopping recognition: $e');
+    }
+  }
+
+  // Clear recognition results
+  void clearResults() {
+    recognitionResults.clear();
+    currentRecognizingText.value = '';
+    _currentRecognitionIndex = -1;
+  }
+} 

lib/modules/test/views/flutter_asr_test_view.dart

@@ -0,0 +1,476 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../controllers/flutter_asr_test_controller.dart';
+import '../../../data/services/flutter_asr_service.dart';
+
+/// Flutter ASR测试视图，演示如何使用FlutterAsrService
+class FlutterAsrTestView extends GetView<FlutterAsrTestController> {
+  const FlutterAsrTestView({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Flutter ASR Test'),
+        centerTitle: true,
+      ),
+      body: SingleChildScrollView(
+        child: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            children: [
+              // 语音识别控制卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Speech Recognition Controls',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      // 添加连续识别模式开关
+                      Obx(() {
+                        final isContinuous = controller.continuousMode;
+                        return SwitchListTile(
+                          title: const Text('连续识别模式'),
+                          subtitle: Text(
+                            isContinuous 
+                                ? '已开启：识别将自动连续进行' 
+                                : '已关闭：识别完成后需手动重新开始',
+                            style: TextStyle(
+                              fontSize: 12,
+                              color: Colors.grey[600],
+                            ),
+                          ),
+                          value: isContinuous,
+                          onChanged: controller.isAvailable 
+                              ? (value) => controller.toggleContinuousMode()
+                              : null,
+                          activeColor: Colors.blue,
+                          dense: true,
+                        );
+                      }),
+                      const Divider(height: 24),
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                        children: [
+                          Obx(() {
+                            final isListening = controller.isListening;
+                            return ElevatedButton.icon(
+                              onPressed: isListening || !controller.isAvailable
+                                  ? null
+                                  : () => controller.startListening(),
+                              icon: isListening
+                                  ? const SizedBox(
+                                      width: 20,
+                                      height: 20,
+                                      child: CircularProgressIndicator(strokeWidth: 2),
+                                    )
+                                  : const Icon(Icons.mic),
+                              label: Text(isListening ? 'Listening...' : 'Start Listening'),
+                              style: ElevatedButton.styleFrom(
+                                backgroundColor: Colors.blue,
+                                foregroundColor: Colors.white,
+                              ),
+                            );
+                          }),
+                          Obx(() {
+                            final isActive = controller.isListening;
+                            return ElevatedButton.icon(
+                              onPressed: isActive
+                                  ? () => controller.stopListening()
+                                  : null,
+                              icon: const Icon(Icons.stop),
+                              label: const Text('Stop'),
+                              style: ElevatedButton.styleFrom(
+                                backgroundColor: Colors.red,
+                                foregroundColor: Colors.white,
+                              ),
+                            );
+                          }),
+                        ],
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 语言选择卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Language Selection',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      
+                      Obx(() {
+                        final locales = controller.locales;
+                        final currentLocale = controller.currentLocale;
+                        
+                        if (locales.isEmpty) {
+                          return const Padding(
+                            padding: EdgeInsets.all(8.0),
+                            child: Text(
+                              'No languages available. Please check ASR settings on your device.',
+                              style: TextStyle(
+                                color: Colors.red,
+                                fontStyle: FontStyle.italic,
+                              ),
+                            ),
+                          );
+                        }
+                        
+                        return DropdownButtonFormField<String>(
+                          decoration: const InputDecoration(
+                            labelText: 'Select Language',
+                            border: OutlineInputBorder(),
+                            contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                          ),
+                          value: currentLocale.isNotEmpty ? currentLocale : null,
+                          items: locales.map((locale) {
+                            final name = locale.name ?? 'Unknown';
+                            final id = locale.localeId ?? '';
+                            return DropdownMenuItem<String>(
+                              value: id,
+                              child: Text('$name (${id.isNotEmpty ? id : 'Unknown'})'),
+                            );
+                          }).toList(),
+                          onChanged: controller.isListening 
+                              ? null 
+                              : (value) {
+                                  if (value != null) {
+                                    controller.setLocale(value);
+                                  }
+                                },
+                          isExpanded: true,
+                          hint: const Text('Select a language'),
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 当前识别结果卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Current Recognition',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      
+                      Obx(() {
+                        final text = controller.recognizedText;
+                        final confidence = controller.confidence;
+                        
+                        return Column(
+                          crossAxisAlignment: CrossAxisAlignment.start,
+                          children: [
+                            Container(
+                              padding: const EdgeInsets.all(16),
+                              decoration: BoxDecoration(
+                                color: Colors.grey.shade100,
+                                borderRadius: BorderRadius.circular(8),
+                                border: Border.all(color: Colors.grey.shade300),
+                              ),
+                              width: double.infinity,
+                              child: Text(
+                                text.isEmpty ? 'Speak to see recognition results here' : text,
+                                style: TextStyle(
+                                  fontSize: 16,
+                                  fontStyle: text.isEmpty ? FontStyle.italic : FontStyle.normal,
+                                  color: text.isEmpty ? Colors.grey : Colors.black,
+                                ),
+                              ),
+                            ),
+                            
+                            if (confidence > 0)
+                              Padding(
+                                padding: const EdgeInsets.only(top: 8.0),
+                                child: Text(
+                                  'Confidence: ${(confidence * 100).toStringAsFixed(1)}%',
+                                  style: TextStyle(
+                                    color: _getConfidenceColor(confidence),
+                                    fontWeight: FontWeight.bold,
+                                  ),
+                                ),
+                              ),
+                          ],
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 历史记录卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                        children: [
+                          const Text(
+                            'Recognition History',
+                            style: TextStyle(
+                              fontSize: 16,
+                              fontWeight: FontWeight.bold,
+                            ),
+                          ),
+                          Obx(() {
+                            final hasHistory = controller.history.isNotEmpty;
+                            return TextButton.icon(
+                              onPressed: hasHistory ? () => controller.clearHistory() : null,
+                              icon: const Icon(Icons.clear_all, size: 18),
+                              label: const Text('Clear'),
+                              style: TextButton.styleFrom(
+                                foregroundColor: Colors.red,
+                                padding: const EdgeInsets.symmetric(horizontal: 8),
+                              ),
+                            );
+                          }),
+                        ],
+                      ),
+                      const SizedBox(height: 8),
+                      
+                      Obx(() {
+                        final history = controller.history;
+                        
+                        if (history.isEmpty) {
+                          return const Padding(
+                            padding: EdgeInsets.symmetric(vertical: 16.0),
+                            child: Center(
+                              child: Text(
+                                'No recognition history yet',
+                                style: TextStyle(
+                                  fontStyle: FontStyle.italic,
+                                  color: Colors.grey,
+                                ),
+                              ),
+                            ),
+                          );
+                        }
+                        
+                        return ListView.separated(
+                          shrinkWrap: true,
+                          physics: const NeverScrollableScrollPhysics(),
+                          itemCount: history.length,
+                          separatorBuilder: (context, index) => const Divider(height: 1),
+                          itemBuilder: (context, index) {
+                            final text = history[index];
+                            
+                            return ListTile(
+                              title: Text(text),
+                              leading: CircleAvatar(
+                                backgroundColor: Colors.blue.shade100,
+                                radius: 18,
+                                child: Text(
+                                  '${index + 1}',
+                                  style: const TextStyle(
+                                    color: Colors.blue,
+                                    fontWeight: FontWeight.bold,
+                                  ),
+                                ),
+                              ),
+                              dense: true,
+                            );
+                          },
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 状态显示卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Status',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 8),
+                      Obx(() {
+                        final state = controller.asrState;
+                        final stateText = _getAsrStateText(state);
+                        final stateColor = _getAsrStateColor(state);
+                        final isContinuous = controller.continuousMode;
+                        
+                        return Column(
+                          crossAxisAlignment: CrossAxisAlignment.start,
+                          children: [
+                            Container(
+                              padding: const EdgeInsets.all(12),
+                              decoration: BoxDecoration(
+                                color: stateColor.withOpacity(0.1),
+                                borderRadius: BorderRadius.circular(8),
+                                border: Border.all(color: stateColor.withOpacity(0.3)),
+                              ),
+                              child: Row(
+                                children: [
+                                  Icon(
+                                    _getAsrStateIcon(state),
+                                    color: stateColor,
+                                  ),
+                                  const SizedBox(width: 8),
+                                  Text(
+                                    'Current Status: $stateText',
+                                    style: TextStyle(
+                                      color: stateColor,
+                                      fontWeight: FontWeight.bold,
+                                    ),
+                                  ),
+                                ],
+                              ),
+                            ),
+                            
+                            if (isContinuous)
+                              Padding(
+                                padding: const EdgeInsets.only(top: 8.0),
+                                child: Container(
+                                  padding: const EdgeInsets.all(8),
+                                  decoration: BoxDecoration(
+                                    color: Colors.blue.withOpacity(0.1),
+                                    borderRadius: BorderRadius.circular(4),
+                                    border: Border.all(color: Colors.blue.withOpacity(0.3)),
+                                  ),
+                                  child: Row(
+                                    children: const [
+                                      Icon(
+                                        Icons.repeat,
+                                        color: Colors.blue,
+                                        size: 16,
+                                      ),
+                                      SizedBox(width: 8),
+                                      Text(
+                                        '连续识别模式已开启',
+                                        style: TextStyle(
+                                          color: Colors.blue,
+                                          fontWeight: FontWeight.bold,
+                                          fontSize: 12,
+                                        ),
+                                      ),
+                                    ],
+                                  ),
+                                ),
+                              ),
+                          ],
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+  
+  // 获取ASR状态文本
+  String _getAsrStateText(AsrState state) {
+    switch (state) {
+      case AsrState.notInitialized:
+        return 'Not Initialized';
+      case AsrState.initialized:
+        return 'Initialized';
+      case AsrState.listening:
+        return 'Listening';
+      case AsrState.notListening:
+        return 'Not Listening';
+      case AsrState.error:
+        return 'Error';
+      default:
+        return 'Unknown';
+    }
+  }
+  
+  // 获取ASR状态颜色
+  Color _getAsrStateColor(AsrState state) {
+    switch (state) {
+      case AsrState.notInitialized:
+        return Colors.grey;
+      case AsrState.initialized:
+        return Colors.blue;
+      case AsrState.listening:
+        return Colors.green;
+      case AsrState.notListening:
+        return Colors.orange;
+      case AsrState.error:
+        return Colors.red;
+      default:
+        return Colors.grey;
+    }
+  }
+  
+  // 获取ASR状态图标
+  IconData _getAsrStateIcon(AsrState state) {
+    switch (state) {
+      case AsrState.notInitialized:
+        return Icons.hourglass_empty;
+      case AsrState.initialized:
+        return Icons.check_circle;
+      case AsrState.listening:
+        return Icons.mic;
+      case AsrState.notListening:
+        return Icons.mic_off;
+      case AsrState.error:
+        return Icons.error;
+      default:
+        return Icons.help_outline;
+    }
+  }
+  
+  // 获取置信度颜色
+  Color _getConfidenceColor(double confidence) {
+    if (confidence >= 0.8) {
+      return Colors.green;
+    } else if (confidence >= 0.6) {
+      return Colors.orange;
+    } else {
+      return Colors.red;
+    }
+  }
+} 

lib/modules/test/views/flutter_tts_test_view.dart

@@ -0,0 +1,334 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../controllers/flutter_tts_test_controller.dart';
+import '../../../data/services/flutter_tts_service.dart';
+
+/// Flutter TTS测试视图，演示如何使用FlutterTtsService
+class FlutterTtsTestView extends GetView<FlutterTtsTestController> {
+  const FlutterTtsTestView({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Flutter TTS Test'),
+        centerTitle: true,
+      ),
+      body: SingleChildScrollView(
+        child: Padding(
+          padding: const EdgeInsets.all(16.0),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.stretch,
+            children: [
+              // 播放控制卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Playback Controls',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                        children: [
+                          Obx(() {
+                            final isPlaying = controller.isPlaying;
+                            return ElevatedButton.icon(
+                              onPressed: isPlaying
+                                  ? null
+                                  : () => _playAllTexts(),
+                              icon: isPlaying
+                                  ? const SizedBox(
+                                      width: 20,
+                                      height: 20,
+                                      child: CircularProgressIndicator(strokeWidth: 2),
+                                    )
+                                  : const Icon(Icons.playlist_play),
+                              label: Text(isPlaying ? 'Playing...' : 'Play All'),
+                              style: ElevatedButton.styleFrom(
+                                backgroundColor: Colors.green,
+                                foregroundColor: Colors.white,
+                              ),
+                            );
+                          }),
+                          Obx(() {
+                            final isActive = controller.ttsState != TtsState.stopped;
+                            return ElevatedButton.icon(
+                              onPressed: isActive
+                                  ? () => controller.stop()
+                                  : null,
+                              icon: const Icon(Icons.stop),
+                              label: const Text('Stop'),
+                              style: ElevatedButton.styleFrom(
+                                backgroundColor: Colors.red,
+                                foregroundColor: Colors.white,
+                              ),
+                            );
+                          }),
+                        ],
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 语音选择卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Voice Selection',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      
+                      Obx(() {
+                        final voices = controller.voices;
+                        final currentVoice = controller.currentVoice;
+                        
+                        if (voices.isEmpty) {
+                          return const Padding(
+                            padding: EdgeInsets.all(8.0),
+                            child: Text(
+                              'No voices available. Please check TTS settings on your device.',
+                              style: TextStyle(
+                                color: Colors.red,
+                                fontStyle: FontStyle.italic,
+                              ),
+                            ),
+                          );
+                        }
+                        
+                        return DropdownButtonFormField<String>(
+                          decoration: const InputDecoration(
+                            labelText: 'Select Voice',
+                            border: OutlineInputBorder(),
+                            contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                          ),
+                          value: currentVoice.isNotEmpty ? currentVoice : null,
+                          items: voices.map((voice) {
+                            final name = voice['name'] ?? 'Unknown';
+                            final locale = voice['locale'] ?? '';
+                            return DropdownMenuItem<String>(
+                              value: name,
+                              child: Text('$name ${locale.isNotEmpty ? '($locale)' : ''}'),
+                            );
+                          }).toList(),
+                          onChanged: controller.isPlaying 
+                              ? null 
+                              : (value) {
+                                  if (value != null) {
+                                    controller.setVoice(value);
+                                  }
+                                },
+                          isExpanded: true,
+                          hint: const Text('Select a voice'),
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 播报内容列表卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Sample Texts',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 16),
+                      
+                      // 预设的播报内容
+                      ListView.separated(
+                        shrinkWrap: true,
+                        physics: const NeverScrollableScrollPhysics(),
+                        itemCount: _getSampleTexts().length,
+                        separatorBuilder: (context, index) => const Divider(height: 1),
+                        itemBuilder: (context, index) {
+                          final text = _getSampleTexts()[index];
+                          
+                          return Obx(() {
+                            final isPlaying = controller.isPlaying;
+                            final isCurrentPlaying = controller.isPlaying && 
+                                                    controller.currentText == text;
+                            
+                            return ListTile(
+                              title: Text(
+                                text,
+                                style: TextStyle(
+                                  fontWeight: isCurrentPlaying ? FontWeight.bold : FontWeight.normal,
+                                  color: isCurrentPlaying ? Colors.blue : null,
+                                ),
+                              ),
+                              leading: CircleAvatar(
+                                backgroundColor: isCurrentPlaying 
+                                    ? Colors.blue 
+                                    : Colors.blue.shade100,
+                                radius: 18,
+                                child: Icon(
+                                  isCurrentPlaying ? Icons.volume_up : Icons.play_arrow,
+                                  color: isCurrentPlaying ? Colors.white : Colors.blue,
+                                  size: 20,
+                                ),
+                              ),
+                              onTap: isPlaying 
+                                  ? null 
+                                  : () => controller.speak(text),
+                              enabled: !isPlaying,
+                              tileColor: isCurrentPlaying ? Colors.blue.withOpacity(0.1) : null,
+                              shape: RoundedRectangleBorder(
+                                borderRadius: BorderRadius.circular(8),
+                                side: isCurrentPlaying
+                                    ? const BorderSide(color: Colors.blue, width: 1)
+                                    : BorderSide.none,
+                              ),
+                            );
+                          });
+                        },
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+              
+              const SizedBox(height: 16),
+              
+              // 状态显示卡片
+              Card(
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      const Text(
+                        'Status',
+                        style: TextStyle(
+                          fontSize: 16,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      const SizedBox(height: 8),
+                      Obx(() {
+                        final state = controller.ttsState;
+                        final stateText = _getTtsStateText(state);
+                        final stateColor = _getTtsStateColor(state);
+                        
+                        return Container(
+                          padding: const EdgeInsets.all(12),
+                          decoration: BoxDecoration(
+                            color: stateColor.withOpacity(0.1),
+                            borderRadius: BorderRadius.circular(8),
+                            border: Border.all(color: stateColor.withOpacity(0.3)),
+                          ),
+                          child: Row(
+                            children: [
+                              Icon(
+                                _getTtsStateIcon(state),
+                                color: stateColor,
+                              ),
+                              const SizedBox(width: 8),
+                              Text(
+                                'Current Status: $stateText',
+                                style: TextStyle(
+                                  color: stateColor,
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              ),
+                            ],
+                          ),
+                        );
+                      }),
+                    ],
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+  
+  // 连续播放所有文本
+  void _playAllTexts() {
+    // 使用控制器的连续播放功能播放所有文本
+    controller.speakTexts(_getSampleTexts());
+  }
+  
+  // 获取TTS状态文本
+  String _getTtsStateText(TtsState state) {
+    switch (state) {
+      case TtsState.playing:
+        return 'Playing';
+      case TtsState.paused:
+        return 'Paused';
+      case TtsState.stopped:
+        return 'Stopped';
+      default:
+        return 'Unknown';
+    }
+  }
+  
+  // 获取TTS状态颜色
+  Color _getTtsStateColor(TtsState state) {
+    switch (state) {
+      case TtsState.playing:
+        return Colors.green;
+      case TtsState.paused:
+        return Colors.orange;
+      case TtsState.stopped:
+        return Colors.grey;
+      default:
+        return Colors.grey;
+    }
+  }
+  
+  // 获取TTS状态图标
+  IconData _getTtsStateIcon(TtsState state) {
+    switch (state) {
+      case TtsState.playing:
+        return Icons.volume_up;
+      case TtsState.paused:
+        return Icons.pause;
+      case TtsState.stopped:
+        return Icons.stop;
+      default:
+        return Icons.help_outline;
+    }
+  }
+  
+  // 获取示例文本
+  List<String> _getSampleTexts() {
+    return [
+      'This is a Flutter TTS test. Please listen to the synthesis effect.',
+      '这是Flutter TTS测试，请听取合成效果。',
+      'Flutter TTS supports various voices and parameter adjustments.',
+      'Flutter TTS支持多种语音和参数调节，可以根据需要进行设置。',
+    ];
+  }
+} 

lib/modules/test/views/volcano_asr_test_view.dart

@@ -0,0 +1,234 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import '../controllers/volcano_asr_test_controller.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+
+class VolcanoAsrTestView extends GetView<VolcanoAsrTestController> {
+  const VolcanoAsrTestView({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('火山语音识别测试'),
+        centerTitle: true,
+      ),
+      body: Padding(
+        padding: EdgeInsets.all(16.0.r),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            // 识别模式选择
+            Card(
+              child: Padding(
+                padding: EdgeInsets.all(16.0.r),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '识别模式',
+                      style: TextStyle(
+                        fontSize: 16.sp,
+                        fontWeight: FontWeight.bold,
+                      ),
+                    ),
+                    SizedBox(height: 8.h),
+                    Obx(() => Row(
+                      children: [
+                        Expanded(
+                          child: RadioListTile<bool>(
+                            title: const Text('一次性识别'),
+                            value: false,
+                            groupValue: controller.isContinuous.value,
+                            onChanged: (value) {
+                              if (value != null) {
+                                controller.isContinuous.value = value;
+                              }
+                            },
+                          ),
+                        ),
+                        Expanded(
+                          child: RadioListTile<bool>(
+                            title: const Text('连续识别'),
+                            value: true,
+                            groupValue: controller.isContinuous.value,
+                            onChanged: (value) {
+                              if (value != null) {
+                                controller.isContinuous.value = value;
+                              }
+                            },
+                          ),
+                        ),
+                      ],
+                    )),
+                  ],
+                ),
+              ),
+            ),
+            
+            SizedBox(height: 16.h),
+            
+            // 录音控制
+            Card(
+              child: Padding(
+                padding: EdgeInsets.all(16.0.r),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '录音控制',
+                      style: TextStyle(
+                        fontSize: 16.sp,
+                        fontWeight: FontWeight.bold,
+                      ),
+                    ),
+                    SizedBox(height: 16.h),
+                    Center(
+                      child: Obx(() => controller.isListening.value
+                        ? ElevatedButton.icon(
+                            onPressed: () => controller.stopListening(),
+                            icon: const Icon(Icons.stop),
+                            label: const Text('停止录音'),
+                            style: ElevatedButton.styleFrom(
+                              backgroundColor: Colors.red,
+                              foregroundColor: Colors.white,
+                              padding: EdgeInsets.symmetric(
+                                horizontal: 24.w,
+                                vertical: 12.h,
+                              ),
+                            ),
+                          )
+                        : ElevatedButton.icon(
+                            onPressed: () => controller.startListening(),
+                            icon: const Icon(Icons.mic),
+                            label: const Text('开始录音'),
+                            style: ElevatedButton.styleFrom(
+                              backgroundColor: Colors.blue,
+                              foregroundColor: Colors.white,
+                              padding: EdgeInsets.symmetric(
+                                horizontal: 24.w,
+                                vertical: 12.h,
+                              ),
+                            ),
+                          ),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            
+            SizedBox(height: 16.h),
+            
+            // 识别结果
+            Expanded(
+              child: Card(
+                child: Padding(
+                  padding: EdgeInsets.all(16.0.r),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                        children: [
+                          Text(
+                            '识别结果',
+                            style: TextStyle(
+                              fontSize: 16.sp,
+                              fontWeight: FontWeight.bold,
+                            ),
+                          ),
+                          IconButton(
+                            icon: const Icon(Icons.clear),
+                            onPressed: () => controller.clearResults(),
+                            tooltip: '清空结果',
+                          ),
+                        ],
+                      ),
+                      SizedBox(height: 8.h),
+                      Expanded(
+                        child: Container(
+                          padding: EdgeInsets.all(8.0.r),
+                          decoration: BoxDecoration(
+                            border: Border.all(color: Colors.grey),
+                            borderRadius: BorderRadius.circular(4.0.r),
+                          ),
+                          child: Obx(() => ListView.builder(
+                            itemCount: controller.recognitionResults.length,
+                            itemBuilder: (context, index) {
+                              final result = controller.recognitionResults[index];
+                              return Padding(
+                                padding: EdgeInsets.symmetric(vertical: 4.0.h),
+                                child: Row(
+                                  crossAxisAlignment: CrossAxisAlignment.start,
+                                  children: [
+                                    Text(
+                                      '${index + 1}. ',
+                                      style: const TextStyle(
+                                        fontWeight: FontWeight.bold,
+                                      ),
+                                    ),
+                                    Expanded(
+                                      child: Text(result),
+                                    ),
+                                  ],
+                                ),
+                              );
+                            },
+                          )),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+            ),
+            
+            SizedBox(height: 16.h),
+            
+            // 状态显示
+            Card(
+              child: Padding(
+                padding: EdgeInsets.all(16.0.r),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '状态',
+                      style: TextStyle(
+                        fontSize: 16.sp,
+                        fontWeight: FontWeight.bold,
+                      ),
+                    ),
+                    SizedBox(height: 8.h),
+                    Obx(() => Text(
+                      controller.connectionStatus.value,
+                      style: TextStyle(
+                        color: controller.connectionStatus.value == 'Connected' 
+                            ? Colors.green 
+                            : (controller.connectionStatus.value == 'Disconnecting...' 
+                                ? Colors.orange 
+                                : Colors.grey),
+                        fontWeight: FontWeight.bold,
+                      ),
+                    )),
+                    SizedBox(height: 8.h),
+                    Obx(() => controller.errorMessage.value.isNotEmpty
+                        ? Text(
+                            '错误: ${controller.errorMessage.value}',
+                            style: TextStyle(
+                              color: Colors.red,
+                              fontSize: 14.sp,
+                            ),
+                          )
+                        : const SizedBox.shrink()),
+                  ],
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+} 

lib/modules/translation/bindings/translation_binding.dart

@@ -1,8 +1,5 @@
 import 'package:get/get.dart';
 import '../controllers/translation_controller.dart';
-import '../../../data/services/azure_asr_service.dart';
-import '../../../data/services/volcano_translation_service.dart';
-import '../../../data/services/volcano_tts_service.dart';
 
 class TranslationBinding implements Bindings {
   @override

lib/modules/translation/controllers/translation_controller.dart

@@ -6,7 +6,7 @@ import 'package:get_storage/get_storage.dart';
 import '../../../data/services/azure_asr_service.dart';
 import '../../../data/services/volcano_translation_service.dart';
 import '../../../data/services/volcano_tts_api_service.dart';
-// import '../../../core/utils/logger.dart';
+import '../../../core/utils/logger.dart';
 
 class TranslationController extends GetxController {
   // Services
@@ -172,11 +172,13 @@ class TranslationController extends GetxController {
               }
               break;
             case RecognitionEventType.error:
-              Get.snackbar(
+              // 错误处理，停止语音识别
-                'Error',
+              Logger.error('语音识别错误: ${event.error}');
-                'Recognition error: ${event.error}',
+              
-                snackPosition: SnackPosition.BOTTOM,
+              // 停止语音识别
-              );
+              isRecognizing.value = false;
+              _asrService.stopContinuousRecognition();
+ 
               break;
             default:
               break;

local_plugins/speech_to_text/android/src/main/kotlin/com/csdcorp/speech_to_text/SpeechToTextPlugin.kt

@@ -0,0 +1,863 @@
+package com.csdcorp.speech_to_text
+
+import android.Manifest
+import android.R.attr.data
+import android.annotation.TargetApi
+import android.app.Activity
+import android.bluetooth.BluetoothAdapter
+import android.bluetooth.BluetoothHeadset
+import android.bluetooth.BluetoothProfile
+import android.content.BroadcastReceiver
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.content.pm.ResolveInfo
+import android.net.Uri
+import android.os.Build
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.speech.*
+import android.speech.SpeechRecognizer.createOnDeviceSpeechRecognizer
+import android.speech.SpeechRecognizer.createSpeechRecognizer
+import android.util.Log
+import androidx.annotation.NonNull
+import androidx.core.app.ActivityCompat
+import androidx.core.content.ContextCompat
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+import io.flutter.embedding.engine.plugins.activity.ActivityAware
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding
+import io.flutter.plugin.common.BinaryMessenger
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler
+import io.flutter.plugin.common.MethodChannel.Result
+import io.flutter.plugin.common.PluginRegistry
+import io.flutter.plugin.common.PluginRegistry.Registrar
+import org.json.JSONArray
+import org.json.JSONObject
+import java.util.*
+import java.util.concurrent.Executors
+
+
+enum class SpeechToTextErrors {
+    multipleRequests,
+    unimplemented,
+    noLanguageIntent,
+    recognizerNotAvailable,
+    missingOrInvalidArg,
+    missingContext,
+    unknown
+}
+
+enum class SpeechToTextCallbackMethods {
+    textRecognition,
+    notifyStatus,
+    notifyError,
+    soundLevelChange,
+}
+
+enum class SpeechToTextStatus {
+    listening,
+    notListening,
+    unavailable,
+    available,
+    done,
+    doneNoResult,
+}
+
+enum class ListenMode {
+    deviceDefault,
+    dictation,
+    search,
+    confirmation,
+}
+
+const val pluginChannelName = "plugin.csdcorp.com/speech_to_text"
+
+@TargetApi(8)
+/** SpeechToTextPlugin */
+public class SpeechToTextPlugin :
+        MethodCallHandler, RecognitionListener,
+        PluginRegistry.RequestPermissionsResultListener, FlutterPlugin,
+        ActivityAware {
+    private var pluginContext: Context? = null
+    private var channel: MethodChannel? = null
+    private val minSdkForSpeechSupport = 21
+    private val brokenStopSdk = 29
+    private val minSdkForOnDeviceSpeechSupport = 31
+    private val speechToTextPermissionCode = 28521
+    private val missingConfidence: Double = -1.0
+    private var speechThresholdRms = 9
+    private val logTag = "SpeechToTextPlugin"
+    private var recognizerStops = true
+    private var currentActivity: Activity? = null
+    private var activeResult: Result? = null
+    private var initializedSuccessfully: Boolean = false
+    private var permissionToRecordAudio: Boolean = false
+    private var listening = false
+    private var debugLogging: Boolean = false
+    private var alwaysUseStop: Boolean = false
+    private var intentLookup: Boolean = false
+    private var noBluetoothOpt: Boolean = false // user-defined option
+    private var bluetoothDisabled = true // final bluetooth state (combines user-defined option and permissions)
+    private var resultSent: Boolean = false
+    private var lastOnDevice: Boolean = false
+    private var speechRecognizer: SpeechRecognizer? = null
+    private var recognizerIntent: Intent? = null
+    private var bluetoothAdapter: android.bluetooth.BluetoothAdapter? = null
+    private var pairedDevices: Set<android.bluetooth.BluetoothDevice>? = null
+    private var activeBluetooth: android.bluetooth.BluetoothDevice? = null
+    private var bluetoothHeadset: BluetoothHeadset? = null
+    private var previousRecognizerLang: String? = null
+    private var previousPartialResults: Boolean = true
+    private var previousListenMode: ListenMode = ListenMode.deviceDefault
+    private var lastFinalTime: Long = 0
+    private var speechStartTime: Long = 0
+    private var minRms: Float = 1000.0F
+    private var maxRms: Float = -100.0F
+    private val handler: Handler = Handler(Looper.getMainLooper())
+    private val defaultLanguageTag: String = Locale.getDefault().toLanguageTag()
+
+    override fun onAttachedToEngine(@NonNull flutterPluginBinding: FlutterPlugin.FlutterPluginBinding) {
+
+        onAttachedToEngine(flutterPluginBinding.getApplicationContext(), flutterPluginBinding.getBinaryMessenger());
+    }
+
+    // This static function is optional and equivalent to onAttachedToEngine. It supports the old
+    // pre-Flutter-1.12 Android projects. You are encouraged to continue supporting
+    // plugin registration via this function while apps migrate to use the new Android APIs
+    // post-flutter-1.12 via https://flutter.dev/go/android-project-migration.
+    //
+    // It is encouraged to share logic between onAttachedToEngine and registerWith to keep
+    // them functionally equivalent. Only one of onAttachedToEngine or registerWith will be called
+    // depending on the user's project. onAttachedToEngine or registerWith must both be defined
+    // in the same class.
+    companion object {
+        @JvmStatic
+        fun registerWith(registrar: Registrar) {
+            val speechPlugin = SpeechToTextPlugin()
+            speechPlugin.currentActivity = registrar.activity()
+            registrar.addRequestPermissionsResultListener(speechPlugin)
+            speechPlugin.onAttachedToEngine(registrar.context(), registrar.messenger())
+        }
+    }
+
+    private fun onAttachedToEngine(applicationContext: Context, messenger: BinaryMessenger) {
+        this.pluginContext = applicationContext;
+        channel = MethodChannel(messenger, pluginChannelName)
+        channel?.setMethodCallHandler(this)
+    }
+
+    override fun onDetachedFromEngine(@NonNull binding: FlutterPlugin.FlutterPluginBinding) {
+        this.pluginContext = null;
+        channel?.setMethodCallHandler(null)
+        channel = null
+    }
+
+    override fun onDetachedFromActivity() {
+        currentActivity = null
+    }
+
+    override fun onReattachedToActivityForConfigChanges(binding: ActivityPluginBinding) {
+        currentActivity = binding.activity
+        binding.addRequestPermissionsResultListener(this)
+    }
+
+    override fun onAttachedToActivity(binding: ActivityPluginBinding) {
+        currentActivity = binding.activity
+        binding.addRequestPermissionsResultListener(this)
+    }
+
+    override fun onDetachedFromActivityForConfigChanges() {
+        currentActivity = null
+    }
+
+    override fun onMethodCall(@NonNull call: MethodCall, @NonNull rawrResult: Result) {
+        val result = ChannelResultWrapper(rawrResult)
+        try {
+            when (call.method) {
+                "has_permission" -> hasPermission(result)
+                "initialize" -> {
+                    var dlog = call.argument<Boolean>("debugLogging")
+                    if (null != dlog) {
+                        debugLogging = dlog
+                    }
+                    var ausOpt = call.argument<Boolean>("alwaysUseStop")
+                    if (null != ausOpt) {
+                        alwaysUseStop = ausOpt == true
+                    }
+                    var iOpt = call.argument<Boolean>("intentLookup")
+                    if (null != iOpt) {
+                        intentLookup = iOpt == true
+                    }
+                    var noBtOpt = call.argument<Boolean>("noBluetooth")
+                    if (null != noBtOpt) {
+                        noBluetoothOpt = noBtOpt == true
+                    }
+                    initialize(result)
+                }
+                "listen" -> {
+                    var localeId = call.argument<String>("localeId")
+                    if (null == localeId) {
+                        localeId = defaultLanguageTag
+                    }
+                    var partialResults = call.argument<Boolean>("partialResults")
+                    if (null == partialResults) {
+                        partialResults = true
+                    }
+                    var onDevice = call.argument<Boolean>("onDevice")
+                    if ( null == onDevice ) {
+                        onDevice = false
+                    }
+                    val listenModeIndex = call.argument<Int>("listenMode")
+                    if ( null == listenModeIndex ) {
+                        result.error(SpeechToTextErrors.missingOrInvalidArg.name,
+                                "listenMode is required", null)
+                        return
+                    }
+                    startListening(result, localeId, partialResults, listenModeIndex, onDevice )
+                }
+                "stop" -> stopListening(result)
+                "cancel" -> cancelListening(result)
+                "locales" -> locales(result)
+                else -> result.notImplemented()
+            }
+        } catch (exc: Exception) {
+            Log.e(logTag, "Unexpected exception", exc)
+            result.error(SpeechToTextErrors.unknown.name,
+                    "Unexpected exception", exc.localizedMessage)
+        }
+    }
+
+    private fun hasPermission(result: Result) {
+        if (sdkVersionTooLow()) {
+            result.success(false)
+            return
+        }
+        debugLog("Start has_permission")
+        val localContext = pluginContext
+        if (localContext != null) {
+            val hasPerm = ContextCompat.checkSelfPermission(localContext,
+                    Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED
+            result.success(hasPerm)
+        }
+    }
+
+    private fun initialize(result: Result) {
+        if (sdkVersionTooLow()) {
+            result.success(false)
+            return
+        }
+        recognizerStops = Build.VERSION.SDK_INT != brokenStopSdk || alwaysUseStop
+        debugLog("Start initialize")
+        if (null != activeResult) {
+            result.error(SpeechToTextErrors.multipleRequests.name,
+                    "Only one initialize at a time", null)
+            return
+        }
+        activeResult = result
+        initializeIfPermitted(pluginContext)
+    }
+
+    private fun sdkVersionTooLow(): Boolean {
+        if (Build.VERSION.SDK_INT < minSdkForSpeechSupport) {
+            return true;
+        }
+        return false;
+    }
+
+    private fun isNotInitialized(): Boolean {
+        return !initializedSuccessfully
+    }
+
+    private fun isListening(): Boolean {
+        return listening
+    }
+
+    private fun isNotListening(): Boolean {
+        return !listening
+    }
+
+    private fun startListening(result: Result, languageTag: String, partialResults: Boolean,
+                               listenModeIndex: Int, onDevice: Boolean) {
+        if (sdkVersionTooLow() || isNotInitialized() || isListening()) {
+            result.success(false)
+            return
+        }
+        resultSent = false
+        createRecognizer(onDevice)
+        minRms = 1000.0F
+        maxRms = -100.0F
+        debugLog("Start listening")
+        var listenMode = ListenMode.deviceDefault
+        if ( listenModeIndex == ListenMode.dictation.ordinal) {
+            listenMode = ListenMode.dictation
+        }
+        optionallyStartBluetooth()
+        setupRecognizerIntent(languageTag, partialResults, listenMode, onDevice )
+        handler.post {
+            run {
+                speechRecognizer?.startListening(recognizerIntent)
+            }
+        }
+        speechStartTime = System.currentTimeMillis()
+        notifyListening(isRecording = true)
+        result.success(true)
+        debugLog("Start listening done")
+    }
+
+    private fun optionallyStartBluetooth() {
+        if ( bluetoothDisabled ) return
+        val context = pluginContext
+        val lbt = bluetoothAdapter
+        val lpaired = pairedDevices
+        val lhead = bluetoothHeadset
+        if (null != lbt && null!= lhead && null != lpaired && lbt.isEnabled) {
+            for (tryDevice in lpaired) {
+                //This loop tries to start VoiceRecognition mode on every paired device until it finds one that works(which will be the currently in use bluetooth headset)
+                if (lhead.startVoiceRecognition(tryDevice)) {
+                    debugLog("Starting bluetooth voice recognition")
+                    activeBluetooth = tryDevice;
+                    break
+                }
+            }
+        }
+    }
+
+    private fun stopListening(result: Result) {
+        if (sdkVersionTooLow() || isNotInitialized() || isNotListening()) {
+            result.success(false)
+            return
+        }
+        debugLog("Stop listening")
+        handler.post {
+            run {
+                speechRecognizer?.stopListening()
+            }
+        }
+        if ( !recognizerStops ) {
+            destroyRecognizer()
+        }
+        notifyListening(isRecording = false)
+        result.success(true)
+        debugLog("Stop listening done")
+    }
+
+    private fun cancelListening(result: Result) {
+        if (sdkVersionTooLow() || isNotInitialized() || isNotListening()) {
+            result.success(false)
+            return
+        }
+        debugLog("Cancel listening")
+        handler.post {
+            run {
+                speechRecognizer?.cancel()
+            }
+        }
+        if ( !recognizerStops ) {
+            destroyRecognizer()
+        }
+        notifyListening(isRecording = false)
+        result.success(true)
+        debugLog("Cancel listening done")
+    }
+
+    private fun locales(result: Result) {
+        if (sdkVersionTooLow()) {
+            result.success(false)
+            return
+        }
+        var hasPermission = ContextCompat.checkSelfPermission(pluginContext!!,
+            Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED
+        if (Build.VERSION.SDK_INT >= 33 && hasPermission) {
+            if ( SpeechRecognizer.isOnDeviceRecognitionAvailable(pluginContext!!)) {
+                // after much experimentation this was the only working iteration of the
+                // checkRecognitionSupport that works.
+            var recognizer = createOnDeviceSpeechRecognizer(pluginContext!!)
+            var recognizerIntent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)
+//            var recognizer = createSpeechRecognizer(pluginContext!!)
+//            var recognizerIntent = Intent(RecognizerIntent.ACTION_GET_LANGUAGE_DETAILS)
+            recognizer?.checkRecognitionSupport(recognizerIntent, Executors.newSingleThreadExecutor(),
+                object : RecognitionSupportCallback {
+                    override fun onSupportResult(recognitionSupport: RecognitionSupport) {
+                        var details = LanguageDetailsChecker( result, debugLogging )
+                        details.createResponse(recognitionSupport.supportedOnDeviceLanguages )
+                        recognizer?.destroy()
+                    }
+                    override fun onError(error: Int) {
+                        debugLog("error from checkRecognitionSupport: " + error)
+                        recognizer?.destroy()
+                    }
+                })
+            }
+        } else {
+            var detailsIntent = RecognizerIntent.getVoiceDetailsIntent(pluginContext)
+            if (null == detailsIntent) {
+                detailsIntent = Intent(RecognizerIntent.ACTION_GET_LANGUAGE_DETAILS)
+                detailsIntent.setPackage("com.google.android.googlequicksearchbox")
+            }
+            pluginContext?.sendOrderedBroadcast(
+                    detailsIntent, null, LanguageDetailsChecker(result, debugLogging),
+                    null, Activity.RESULT_OK, null, null)
+        }
+    }
+
+    private fun notifyListening(isRecording: Boolean ) {
+        if ( listening == isRecording ) return;
+        listening = isRecording
+        val status = when (isRecording) {
+            true -> SpeechToTextStatus.listening.name
+            false -> SpeechToTextStatus.notListening.name
+        }
+        debugLog("Notify status:" + status)
+        channel?.invokeMethod(SpeechToTextCallbackMethods.notifyStatus.name, status)
+        if ( !isRecording ) {
+            val doneStatus = when( resultSent) {
+                false -> SpeechToTextStatus.doneNoResult.name
+                else -> SpeechToTextStatus.done.name
+            }
+            debugLog("Notify status:" + doneStatus )
+            optionallyStopBluetooth();
+            channel?.invokeMethod(SpeechToTextCallbackMethods.notifyStatus.name,
+                doneStatus )
+        }
+    }
+
+    private fun optionallyStopBluetooth() {
+        if ( bluetoothDisabled ) return
+        val lactive = activeBluetooth
+        val lbt = bluetoothHeadset
+        if (null != lactive && null != lbt ) {
+            debugLog("Stopping bluetooth voice recognition")
+            lbt.stopVoiceRecognition(lactive)
+            activeBluetooth = null
+        }
+    }
+    
+    private fun updateResults(speechBundle: Bundle?, isFinal: Boolean) {
+        if (isDuplicateFinal( isFinal )) {
+            debugLog("Discarding duplicate final")
+            return
+        }
+        val userSaid = speechBundle?.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION)
+        if (null != userSaid && userSaid.isNotEmpty()) {
+            val speechResult = JSONObject()
+            speechResult.put("finalResult", isFinal)
+            val confidence = speechBundle.getFloatArray(SpeechRecognizer.CONFIDENCE_SCORES)
+            val alternates = JSONArray()
+            for (resultIndex in 0..userSaid.size - 1) {
+                val speechWords = JSONObject()
+                speechWords.put("recognizedWords", userSaid[resultIndex])
+                if (null != confidence && confidence.size >= userSaid.size) {
+                    speechWords.put("confidence", confidence[resultIndex])
+                } else {
+                    speechWords.put("confidence", missingConfidence)
+                }
+                alternates.put(speechWords)
+            }
+            speechResult.put("alternates", alternates)
+            val jsonResult = speechResult.toString()
+            debugLog("Calling results callback")
+            resultSent = true
+            channel?.invokeMethod(SpeechToTextCallbackMethods.textRecognition.name,
+                    jsonResult)
+        } else {
+            debugLog("Results null or empty")
+        }
+    }
+
+    private fun isDuplicateFinal( isFinal: Boolean ) : Boolean {
+        if ( !isFinal ) {
+            return false
+        }
+        val delta = System.currentTimeMillis() - lastFinalTime
+        lastFinalTime = System.currentTimeMillis()
+        return delta >= 0 && delta < 100
+    }
+
+    private fun initializeIfPermitted(context: Context?) {
+        val localContext = context
+        if (null == localContext) {
+            completeInitialize()
+            return
+        }
+        permissionToRecordAudio = ContextCompat.checkSelfPermission(localContext,
+                Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED
+        val permissionToEnableBluetooth = ContextCompat.checkSelfPermission(localContext,
+                Manifest.permission.BLUETOOTH_CONNECT) == PackageManager.PERMISSION_GRANTED
+        bluetoothDisabled = !permissionToEnableBluetooth || noBluetoothOpt
+        debugLog("Checked permission")
+        if (!permissionToRecordAudio) {
+            val localActivity = currentActivity
+            if (null != localActivity) {
+                debugLog("Requesting permission")
+                var requiredPermissions = arrayOf(Manifest.permission.RECORD_AUDIO)
+                if ( !noBluetoothOpt ) {
+                    requiredPermissions = requiredPermissions.plus(Manifest.permission.BLUETOOTH_CONNECT)
+                }
+                ActivityCompat.requestPermissions(localActivity, requiredPermissions, speechToTextPermissionCode)
+            } else {
+                debugLog("no permission, no activity, completing")
+                completeInitialize()
+            }
+        } else {
+            debugLog("has permission, completing")
+            completeInitialize()
+        }
+        debugLog("leaving initializeIfPermitted")
+    }
+
+    private fun completeInitialize() {
+
+        debugLog("completeInitialize")
+        if (permissionToRecordAudio) {
+            debugLog("Testing recognition availability")
+            val localContext = pluginContext
+            if (localContext != null) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    if (!SpeechRecognizer.isRecognitionAvailable(localContext) && !SpeechRecognizer.isOnDeviceRecognitionAvailable(
+                            localContext
+                        )
+                    ) {
+                        Log.e(logTag, "Speech recognition not available on this device")
+                        activeResult?.error(
+                            SpeechToTextErrors.recognizerNotAvailable.name,
+                            "Speech recognition not available on this device", ""
+                        )
+                        activeResult = null
+                        return
+                    }
+                } else {
+                    if (!SpeechRecognizer.isRecognitionAvailable(localContext)) {
+                        Log.e(logTag, "Speech recognition not available on this device")
+                        activeResult?.error(
+                            SpeechToTextErrors.recognizerNotAvailable.name,
+                            "Speech recognition not available on this device", ""
+                        )
+                        activeResult = null
+                        return
+                    }
+                }
+                setupBluetooth()
+            } else {
+                debugLog("null context during initialization")
+                activeResult?.success(false)
+                activeResult?.error(
+                        SpeechToTextErrors.missingContext.name,
+                        "context unexpectedly null, initialization failed", "")
+                activeResult = null
+                return
+            }
+        }
+
+        initializedSuccessfully = permissionToRecordAudio
+        debugLog("sending result")
+        activeResult?.success(permissionToRecordAudio)
+        debugLog("leaving complete")
+        activeResult = null
+    }
+
+    private fun setupBluetooth() {
+        if ( bluetoothDisabled ) return
+        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter()
+        pairedDevices = bluetoothAdapter?.getBondedDevices()
+
+        val mProfileListener: BluetoothProfile.ServiceListener = object : BluetoothProfile.ServiceListener {
+            override fun onServiceConnected(profile: Int, proxy: BluetoothProfile) {
+                if (profile == BluetoothProfile.HEADSET) {
+                    bluetoothHeadset = proxy as BluetoothHeadset
+                    debugLog("Found a headset: " + bluetoothHeadset.toString())
+                }
+            }
+
+            override fun onServiceDisconnected(profile: Int) {
+                if (profile == BluetoothProfile.HEADSET) {
+                    debugLog("Clearing headset: ")
+                    bluetoothHeadset = null
+                }
+            }
+        }
+        bluetoothAdapter?.getProfileProxy(pluginContext, mProfileListener, BluetoothProfile.HEADSET)
+    }
+
+    private fun Context.findComponentName(): ComponentName? {
+        val list: List<ResolveInfo> = packageManager.queryIntentServices(Intent(RecognitionService.SERVICE_INTERFACE), 0)
+        debugLog("RecognitionService, found: ${list.size}")
+        list.forEach() { it.serviceInfo?.let { it1 -> debugLog("RecognitionService: packageName: ${it1.packageName}, name: ${it1.name}") } }
+        return list.firstOrNull()?.serviceInfo?.let { ComponentName(it.packageName, it.name) }
+    }
+
+    private fun createRecognizer(onDevice: Boolean) {
+        if ( null != speechRecognizer && onDevice == lastOnDevice ) {
+            return
+        }
+        lastOnDevice = onDevice
+        speechRecognizer?.destroy()
+        speechRecognizer = null
+        handler.post {
+            run {
+                debugLog("Creating recognizer")
+                if (intentLookup) {
+                    speechRecognizer = createSpeechRecognizer(
+                        pluginContext,
+                        pluginContext?.findComponentName()
+                    ).apply {
+                        debugLog("Setting listener after intent lookup")
+                        setRecognitionListener(this@SpeechToTextPlugin)
+                    }
+                } else {
+                        var supportsLocal = false
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && onDevice) {
+                        supportsLocal = SpeechRecognizer.isOnDeviceRecognitionAvailable(pluginContext!!)
+                        if (supportsLocal ) {
+                            speechRecognizer = createOnDeviceSpeechRecognizer(pluginContext!!).apply {
+                                debugLog("Setting on device listener")
+                                setRecognitionListener(this@SpeechToTextPlugin)
+                            }
+                        }
+                    }
+                    if ( null == speechRecognizer) {
+                            speechRecognizer = createSpeechRecognizer(pluginContext).apply {
+                                debugLog("Setting default listener")
+                                setRecognitionListener(this@SpeechToTextPlugin)
+                        }
+                    }
+                }
+                if (null == speechRecognizer) {
+                    Log.e(logTag, "Speech recognizer null")
+                    activeResult?.error(
+                        SpeechToTextErrors.recognizerNotAvailable.name,
+                        "Speech recognizer null", ""
+                    )
+                    activeResult = null
+                }
+            }
+        }
+        debugLog("before setup intent")
+        setupRecognizerIntent(defaultLanguageTag, true, ListenMode.deviceDefault, false )
+        debugLog("after setup intent")
+    }
+
+    private fun setupRecognizerIntent(languageTag: String, partialResults: Boolean, listenMode: ListenMode, onDevice: Boolean ) {
+        debugLog("setupRecognizerIntent")
+        if (previousRecognizerLang == null ||
+                previousRecognizerLang != languageTag ||
+                partialResults != previousPartialResults || previousListenMode != listenMode ) {
+            previousRecognizerLang = languageTag;
+            previousPartialResults = partialResults
+            previousListenMode = listenMode
+            handler.post {
+                run {
+                    recognizerIntent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
+                        debugLog("In RecognizerIntent apply")
+                        putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)
+                        debugLog("put model")
+                        val localContext = pluginContext
+                        if (null != localContext) {
+                            putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
+                                    localContext.applicationInfo.packageName)
+                        }
+                        debugLog("put package")
+                        putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, partialResults)
+                        debugLog("put partial")
+                        if (languageTag != Locale.getDefault().toLanguageTag()) {
+                            putExtra(RecognizerIntent.EXTRA_LANGUAGE, languageTag);
+                            debugLog("put languageTag")
+                        }
+                        if ( onDevice ) {
+                            putExtra(RecognizerIntent.EXTRA_PREFER_OFFLINE, onDevice );
+                        }
+                        putExtra(RecognizerIntent.EXTRA_MAX_RESULTS,10)
+                    }
+                }
+            }
+        }
+    }
+
+    private fun destroyRecognizer() {
+
+        handler.postDelayed( {
+                run {
+                    debugLog("Recognizer destroy")
+                    speechRecognizer?.destroy();
+                    speechRecognizer = null;
+                }
+        }, 50 )
+    }
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray): Boolean {
+        when (requestCode) {
+            speechToTextPermissionCode -> {
+                permissionToRecordAudio = grantResults.isNotEmpty() &&
+                        grantResults[0] == PackageManager.PERMISSION_GRANTED
+                bluetoothDisabled = (grantResults.isEmpty() || grantResults.size == 1 ||
+                        grantResults[1] != PackageManager.PERMISSION_GRANTED) ||
+                        noBluetoothOpt
+                completeInitialize()
+                return true
+            }
+        }
+        return false
+    }
+
+
+    override fun onPartialResults(results: Bundle?) = updateResults(results, false)
+    override fun onResults(results: Bundle?) = updateResults(results, true)
+    override fun onEndOfSpeech() = notifyListening(isRecording = false)
+
+    override fun onError(errorCode: Int) {
+        val delta = System.currentTimeMillis() - speechStartTime
+        var errorReturn = errorCode
+        if ( SpeechRecognizer.ERROR_NO_MATCH == errorCode && maxRms < speechThresholdRms ) {
+            errorReturn = SpeechRecognizer.ERROR_SPEECH_TIMEOUT
+        }
+        debugLog( "Error $errorCode after start at $delta $minRms / $maxRms")
+        val errorMsg = when (errorReturn) {
+            SpeechRecognizer.ERROR_AUDIO -> "error_audio_error"
+            SpeechRecognizer.ERROR_CLIENT -> "error_client"
+            SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS -> "error_permission"
+            SpeechRecognizer.ERROR_NETWORK -> "error_network"
+            SpeechRecognizer.ERROR_NETWORK_TIMEOUT -> "error_network_timeout"
+            SpeechRecognizer.ERROR_NO_MATCH -> "error_no_match"
+            SpeechRecognizer.ERROR_RECOGNIZER_BUSY -> "error_busy"
+            SpeechRecognizer.ERROR_SERVER -> "error_server"
+            SpeechRecognizer.ERROR_SPEECH_TIMEOUT -> "error_speech_timeout"
+            SpeechRecognizer.ERROR_LANGUAGE_NOT_SUPPORTED -> "error_language_not_supported"
+            SpeechRecognizer.ERROR_LANGUAGE_UNAVAILABLE -> "error_language_unavailable"
+            SpeechRecognizer.ERROR_SERVER_DISCONNECTED -> "error_server_disconnected"
+            SpeechRecognizer.ERROR_TOO_MANY_REQUESTS -> "error_too_many_requests"
+            else -> "error_unknown ($errorCode)"
+        }
+
+        sendError(errorMsg)
+        if ( isListening()) {
+            notifyListening(false)
+        }
+    }
+
+    private fun debugLog( msg: String ) {
+        if ( debugLogging ) {
+            Log.d( logTag, msg )
+        }
+    }
+
+    private fun sendError(errorMsg: String) {
+        val speechError = JSONObject()
+        speechError.put("errorMsg", errorMsg)
+        speechError.put("permanent", true)
+        handler.post {
+            run {
+                channel?.invokeMethod(SpeechToTextCallbackMethods.notifyError.name, speechError.toString())
+            }
+        }
+    }
+
+    override fun onRmsChanged(rmsdB: Float) {
+        if ( rmsdB < minRms ) {
+            minRms = rmsdB
+        }
+        if ( rmsdB > maxRms ) {
+            maxRms = rmsdB
+        }
+        debugLog("rmsDB $minRms / $maxRms")
+        handler.post {
+            run {
+                channel?.invokeMethod(SpeechToTextCallbackMethods.soundLevelChange.name, rmsdB)
+            }
+        }
+    }
+
+    override fun onReadyForSpeech(p0: Bundle?) {}
+    override fun onBufferReceived(p0: ByteArray?) {}
+    override fun onEvent(p0: Int, p1: Bundle?) {}
+    override fun onBeginningOfSpeech() {}
+}
+
+// See https://stackoverflow.com/questions/10538791/how-to-set-the-language-in-speech-recognition-on-android/10548680#10548680
+class LanguageDetailsChecker(flutterResult: Result, logging: Boolean ) : BroadcastReceiver() {
+    private val logTag = "SpeechToTextPlugin"
+    private val result: Result = flutterResult
+    private val debugLogging: Boolean = logging
+    private var supportedLanguages: List<String>? = null
+
+    private var languagePreference: String? = null
+
+    override fun onReceive(context: Context, intent: Intent) {
+        debugLog( "Received extra language broadcast" )
+        val results = getResultExtras(true)
+        if (results.containsKey(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE)) {
+            languagePreference = results.getString(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE)
+        }
+        if (results.containsKey(RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES)) {
+            debugLog( "Extra supported languages" )
+            supportedLanguages = results.getStringArrayList(
+                    RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES)
+            createResponse(supportedLanguages)
+        }
+        else {
+            debugLog(  "No extra supported languages" )
+            createResponse( ArrayList<String>())
+        }
+    }
+
+    public fun createResponse(supportedLanguages: List<String>?) {
+        val currentLocale = Locale.getDefault()
+        val localeNames = ArrayList<String>()
+        localeNames.add(buildIdNameForLocale(currentLocale))
+        if (null != supportedLanguages) {
+            for (lang in supportedLanguages) {
+                if (currentLocale.toLanguageTag() == lang) {
+                    continue
+                }
+                val locale = Locale.forLanguageTag(lang)
+                localeNames.add(buildIdNameForLocale(locale))
+            }
+        }
+        result.success(localeNames)
+
+    }
+
+    private fun buildIdNameForLocale(locale: Locale): String {
+        val name = locale.displayName.replace(':', ' ')
+        return "${locale.language}_${locale.country}:$name"
+    }
+
+    private fun debugLog( msg: String ) {
+        if ( debugLogging ) {
+            Log.d( logTag, msg )
+        }
+    }
+}
+
+private class ChannelResultWrapper(result: Result) : Result {
+    // Caller handler
+    val handler: Handler = Handler(Looper.getMainLooper())
+    val result: Result = result
+
+    // make sure to respond in the caller thread
+    override fun success(results: Any?) {
+
+        handler.post {
+            run {
+                result.success(results);
+            }
+        }
+    }
+
+    override fun error(errorCode: String, errorMessage: String?, data: Any?) {
+        handler.post {
+            run {
+                result.error(errorCode, errorMessage, data);
+            }
+        }
+    }
+
+    override fun notImplemented() {
+        handler.post {
+            run {
+                result.notImplemented();
+            }
+        }
+    }
+}

macos/Podfile.lock

@@ -6,8 +6,12 @@ PODS:
     - FlutterMacOS
   - device_info_plus (0.0.1):
     - FlutterMacOS
+  - file_selector_macos (0.0.1):
+    - FlutterMacOS
   - flutter_local_notifications (0.0.1):
     - FlutterMacOS
+  - flutter_tts (0.0.1):
+    - FlutterMacOS
   - FlutterMacOS (1.0.0)
   - just_audio (0.0.1):
     - Flutter
@@ -17,9 +21,16 @@ PODS:
     - FlutterMacOS
   - record_darwin (1.0.0):
     - FlutterMacOS
+  - share_plus (0.0.1):
+    - FlutterMacOS
+  - speech_to_text (0.0.1):
+    - Flutter
+    - FlutterMacOS
+    - Try
   - sqflite_darwin (0.0.4):
     - Flutter
     - FlutterMacOS
+  - Try (2.1.1)
   - window_size (0.0.2):
     - FlutterMacOS
 
@@ -27,14 +38,22 @@ DEPENDENCIES:
   - audio_service (from `Flutter/ephemeral/.symlinks/plugins/audio_service/darwin`)
   - audio_session (from `Flutter/ephemeral/.symlinks/plugins/audio_session/macos`)
   - device_info_plus (from `Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos`)
+  - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
   - flutter_local_notifications (from `Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos`)
+  - flutter_tts (from `Flutter/ephemeral/.symlinks/plugins/flutter_tts/macos`)
   - FlutterMacOS (from `Flutter/ephemeral`)
   - just_audio (from `Flutter/ephemeral/.symlinks/plugins/just_audio/darwin`)
   - path_provider_foundation (from `Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin`)
   - record_darwin (from `Flutter/ephemeral/.symlinks/plugins/record_darwin/macos`)
+  - share_plus (from `Flutter/ephemeral/.symlinks/plugins/share_plus/macos`)
+  - speech_to_text (from `Flutter/ephemeral/.symlinks/plugins/speech_to_text/darwin`)
   - sqflite_darwin (from `Flutter/ephemeral/.symlinks/plugins/sqflite_darwin/darwin`)
   - window_size (from `Flutter/ephemeral/.symlinks/plugins/window_size/macos`)
 
+SPEC REPOS:
+  trunk:
+    - Try
+
 EXTERNAL SOURCES:
   audio_service:
     :path: Flutter/ephemeral/.symlinks/plugins/audio_service/darwin
@@ -42,8 +61,12 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/audio_session/macos
   device_info_plus:
     :path: Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos
+  file_selector_macos:
+    :path: Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos
   flutter_local_notifications:
     :path: Flutter/ephemeral/.symlinks/plugins/flutter_local_notifications/macos
+  flutter_tts:
+    :path: Flutter/ephemeral/.symlinks/plugins/flutter_tts/macos
   FlutterMacOS:
     :path: Flutter/ephemeral
   just_audio:
@@ -52,6 +75,10 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin
   record_darwin:
     :path: Flutter/ephemeral/.symlinks/plugins/record_darwin/macos
+  share_plus:
+    :path: Flutter/ephemeral/.symlinks/plugins/share_plus/macos
+  speech_to_text:
+    :path: Flutter/ephemeral/.symlinks/plugins/speech_to_text/darwin
   sqflite_darwin:
     :path: Flutter/ephemeral/.symlinks/plugins/sqflite_darwin/darwin
   window_size:
@@ -61,12 +88,17 @@ SPEC CHECKSUMS:
   audio_service: aa99a6ba2ae7565996015322b0bb024e1d25c6fd
   audio_session: eaca2512cf2b39212d724f35d11f46180ad3a33e
   device_info_plus: a56e6e74dbbd2bb92f2da12c64ddd4f67a749041
+  file_selector_macos: 6280b52b459ae6c590af5d78fc35c7267a3c4b31
   flutter_local_notifications: 13862b132e32eb858dea558a86d45d08daeacfe7
+  flutter_tts: ae915565cc6948444b513acc8ee021993281e027
   FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
   just_audio: 4e391f57b79cad2b0674030a00453ca5ce817eed
   path_provider_foundation: 080d55be775b7414fd5a5ef3ac137b97b097e564
   record_darwin: 30509266ae213af8afdb09a8ae7467cb64c1377e
+  share_plus: 510bf0af1a42cd602274b4629920c9649c52f4cc
+  speech_to_text: 9dc43a5df3cbc2813f8c7cc9bd0fbf94268ed7ac
   sqflite_darwin: 20b2a3a3b70e43edae938624ce550a3cbf66a3d0
+  Try: 5ef669ae832617b3cee58cb2c6f99fb767a4ff96
   window_size: 4bd15034e6e3d0720fd77928a7c42e5492cfece9
 
 PODFILE CHECKSUM: 8c4442624fc136b0afb378a2502958e01c05d073

pubspec.yaml

@@ -22,10 +22,12 @@ dependencies:
   markdown: ^7.1.1
   permission_handler: ^11.4.0
   audio_service: ^0.18.12
-  web_socket_channel: ^2.4.4
+  web_socket_channel: ^3.0.2
   flutter_dotenv: ^5.1.0
   synchronized: ^3.1.0
   intl: ^0.19.0
+  crypto: ^3.0.3
+  flutter_tts: ^4.2.2
   window_size:
     git:
       url: https://github.com/google/flutter-desktop-embedding.git
@@ -37,6 +39,7 @@ dependencies:
   record: ^5.2.1
   share_plus: ^10.0.0
   image_picker: ^1.1.2
+  speech_to_text: ^7.0.0
 
 dev_dependencies:
   flutter_test:

windows/flutter/generated_plugin_registrant.cc

@@ -7,6 +7,7 @@
 #include "generated_plugin_registrant.h"
 
 #include <file_selector_windows/file_selector_windows.h>
+#include <flutter_tts/flutter_tts_plugin.h>
 #include <permission_handler_windows/permission_handler_windows_plugin.h>
 #include <record_windows/record_windows_plugin_c_api.h>
 #include <share_plus/share_plus_windows_plugin_c_api.h>
@@ -16,6 +17,8 @@
 void RegisterPlugins(flutter::PluginRegistry* registry) {
   FileSelectorWindowsRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FileSelectorWindows"));
+  FlutterTtsPluginRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FlutterTtsPlugin"));
   PermissionHandlerWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("PermissionHandlerWindowsPlugin"));
   RecordWindowsPluginCApiRegisterWithRegistrar(

windows/flutter/generated_plugins.cmake

@@ -4,6 +4,7 @@
 
 list(APPEND FLUTTER_PLUGIN_LIST
   file_selector_windows
+  flutter_tts
   permission_handler_windows
   record_windows
   share_plus