[update] use aliyun andriod sdk

lib/services/chat_sse_service.dart

@@ -3,7 +3,12 @@ import 'dart:convert';
 import 'dart:io';
 import 'dart:math';
 
+import 'package:flutter/services.dart';
+
+import '../utils/common_util.dart';
+
 class ChatSseService {
+  static const MethodChannel _channel = MethodChannel('com.example.ai_chat_assistant/tts');
   // 缓存用户ID和会话ID
   String? _cachedUserId;
   String? _cachedConversationId;
@@ -11,6 +16,7 @@ class ChatSseService {
   HttpClient? _currentClient;
   HttpClientResponse? _currentResponse;
   bool _isAborted = true;
+  bool isTtsStarted = false;
 
   String? get conversationId => _cachedConversationId;
 
@@ -42,12 +48,21 @@ class ChatSseService {
       request.add(utf8.encode(json.encode(body)));
       _currentResponse = await request.close();
       if (_currentResponse!.statusCode == 200) {
+        bool isFirst = true;
         await for (final line in _currentResponse!
             .transform(utf8.decoder)
             .transform(const LineSplitter())) {
           if (_isAborted) {
             break;
           }
+          if (isFirst) {
+            if (!isTtsStarted) {
+              if (await _channel.invokeMethod<bool>("startTts") == true) {
+                isTtsStarted = true;
+              }
+            }
+            isFirst = false;
+          }
           if (line.startsWith('data:')) {
             final jsonStr = line.substring(5).trim();
             if (jsonStr == '[DONE]' || jsonStr.contains('message_end')) {
@@ -63,12 +78,16 @@ class ChatSseService {
               if (jsonData['event'].toString().contains('message')) {
                 final textChunk =
                     jsonData.containsKey('answer') ? jsonData['answer'] : '';
+                if (_isAborted) {
+                  break;
+                }
+                _channel.invokeMethod("sendTts", {"text": CommonUtil.cleanText(textChunk, true)});
                 responseText += textChunk;
-                tempText += textChunk;
-                int endIndex = _getCompleteTextEndIndex(tempText);
-                final completeText = tempText.substring(0, endIndex).trim();
-                tempText = tempText.substring(endIndex).trim();
-                onStreamResponse(messageId, responseText, completeText, false);
+                // tempText += textChunk;
+                // int endIndex = _getCompleteTextEndIndex(tempText);
+                // final completeText = tempText.substring(0, endIndex).trim();
+                // tempText = tempText.substring(endIndex).trim();
+                onStreamResponse(messageId, responseText, "completeText", false);
               }
             } catch (e) {
               print('解析 SSE 数据出错: $e, 原始数据: $jsonStr');
@@ -81,12 +100,15 @@ class ChatSseService {
     } catch (e) {
       // todo
     } finally {
+      isTtsStarted = false;
       resetRequest();
     }
   }
 
   Future<void> abort() async {
     _isAborted = true;
+    _channel.invokeMethod("stopTts");
+    isTtsStarted = false;
     resetRequest();
   }