我们有一个演示Android应用程序（安卓4.0.3）运行语音识别作为一种服务，（时间可持续）登录视图的识别结果。

We have a demo android application (Android 4.0.3) that runs voice recognition as a service, and (continuosly) logs the results of the recognition on the view.

一切工作在我们的智能手机就好了。

Everything is working fine in our smartphones.

我们想复制这种情况在谷歌玻璃浸泡应用程序，但我们一直有这样的错误消息，当我们试图启动服务：

We would like to replicate this scenario in a Google Glass immersion application, but we always have this error message when we try to start the service:

没有选择的语音识别服务

no selected voice recognition service

是否有一些已知的限制？或者有人想出如何解决这类问题呢？

Are there some known limitations? Or have someone figured out how to resolve this kind of problem?

在此先感谢

这是活动的一些显著code：

This is some significant code of the activity:

public class MainActivity extends Activity implements Observer {
   ...
   @Override
   protected void onStart() {
      super.onStart();
      //Toast.makeText(this, "Hi guys", Toast.LENGTH_LONG);
      startService(new Intent(this, SilentVoiceRecognitionService.class));
   }
   ...
}

这是服务的code：

And this is the code of the service:

public class SilentVoiceRecognitionService extends Service {
   protected AudioManager mAudioManager; 
   protected SpeechRecognizer mSpeechRecognizer;
   protected Intent mSpeechRecognizerIntent;
   protected final Messenger mServerMessenger = new Messenger(new IncomingHandler(this));

   private Model model = Model.getInstance();

   static final String TAG = "SilentRecognizer";
   static final int MSG_RECOGNIZER_START_LISTENING = 1;
   static final int MSG_RECOGNIZER_CANCEL = 2;

   protected boolean mIsListening;

   @Override
   public void onCreate()
   {
       super.onCreate();
       mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
       mSpeechRecognizer.setRecognitionListener(new SpeechRecognitionListener());
       mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
       mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                                     RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
       mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
                                     this.getPackageName());
   }

   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
       Log.i("LocalService", "Received start id " + startId + ": " + intent);
       // We want this service to continue running until it is explicitly
       // stopped, so return sticky.

       mSpeechRecognizer.startListening(mSpeechRecognizerIntent);

       return START_STICKY;
   }

   @Override
   public void onDestroy()
   {
       super.onDestroy();

       if (mSpeechRecognizer != null)
       {
           mSpeechRecognizer.destroy();
       }
   }

   protected class SpeechRecognitionListener implements RecognitionListener
   {

       ...
   }


   protected static class IncomingHandler extends Handler
   {
       private WeakReference<SilentVoiceRecognitionService> mtarget;

       IncomingHandler(SilentVoiceRecognitionService target)
       {
           mtarget = new WeakReference<SilentVoiceRecognitionService>(target);
       }


       @Override
       public void handleMessage(Message msg)
       {
           final SilentVoiceRecognitionService target = mtarget.get();

           switch (msg.what)
           {
               case MSG_RECOGNIZER_START_LISTENING:

                    if (!target.mIsListening)
                    {
                   target.mSpeechRecognizer.startListening(target.mSpeechRecognizerIntent);
                        target.mIsListening = true;
                       //Log.d(TAG, "message start listening"); //$NON-NLS-1$
                    }
                    break;

                case MSG_RECOGNIZER_CANCEL:
                     target.mSpeechRecognizer.cancel();
                     target.mIsListening = false;
                     //Log.d(TAG, "message canceled recognizer"); //$NON-NLS-1$
                     break;
            }
      } 
   }

}

推荐答案

此功能已近日接受，但尚未公布，看到的 HTTPS：//$c$c.google.com/p/google-glass-api/issues/detail ID = 245

This feature has been recently accepted but not yet available, see https://code.google.com/p/google-glass-api/issues/detail?id=245

您可以装载更多的提到的apk获得的平均时间的功能。 请参阅Using从谷歌玻璃 Android的语音识别API的

You can load the additional mentioned apk to get the functionality for the mean time. See Using Android Speech Recognition APIs from Google Glass