在使用文本到语音之前停止语音识别

Question

我正在实现一个使用语音识别和文本到语音的对话应用程序。我注意到一旦识别器启动，它会尝试识别包括文本结果在内的任何声音。

我尝试下面的代码，以防止它听TTS，但我得到这个异常：

E/JavaBinder(29640): *** Uncaught remote exception! (Exceptions are not yet supported across processes.) 
E/JavaBinder(29640): java.lang.RuntimeException: SpeechRecognizer should be used only from the application's main thread 
E/JavaBinder(29640): at android.speech.SpeechRecognizer.checkIsCalledFromMainThread(SpeechRecognizer.java:319) 
E/JavaBinder(29640): at android.speech.SpeechRecognizer.stopListening(SpeechRecognizer.java:303) 
E/JavaBinder(29640): at com.example.mycode.SpeechActivity$2.onStart(SpeechActivity.java:188) 
E/JavaBinder(29640): at android.speech.tts.TextToSpeech$Connection$1.onStart(TextToSpeech.java:1280) 
E/JavaBinder(29640): at android.speech.tts.ITextToSpeechCallback$Stub.onTransact(ITextToSpeechCallback.java:55) 
E/JavaBinder(29640): at android.os.Binder.execTransact(Binder.java:367) 
E/JavaBinder(29640): at dalvik.system.NativeStart.run(Native Method) 
E/SpannableStringBuilder(29640): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 
E/SpannableStringBuilder(29640): SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length 

码 -

UtteranceProgressListener ttsProgressListener = new UtteranceProgressListener(){ 

     @Override 
     public void onDone(String arg0) { 
      // TODO Auto-generated method stub 
      recognizer.startListening(intent); 
     } 

     @Override 
     public void onError(String arg0) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onStart(String utteranceId) { 
      // TODO Auto-generated method stub 
      recognizer.stopListening(); 
     } 

    }; 

你能不能帮我调试这个？

Answer 1

尝试这个 - >

@Override 
public void onStart(String utteranceId) { 
    // TODO Auto-generated method stub 
    SpeechActivity.this.runOnUiThread(new Runnable() { 

       @Override 
       public void run() { 
        recognizer.stopListening(); 
       } 
      }); 
}