android - RecognitionListener出现ERROR_RECOGNIZER_BUSY错误后如何重新开始监听

Question

我正在改进一个使用 RecognitionListener 类来收听用户语音的 Android 应用程序，这里我得到以下结果:

1-) 如果用户点击麦克风图标并说了些什么，一切都很好 2-) 如果用户点击麦克风图标并再次点击麦克风图标或什么也没说，我会收到onerror，错误类型为:ERROR_RECOGNIZER_BUSY

 @Override
 public void onError(int error) {
 if ((error == SpeechRecognizer.ERROR_NO_MATCH)
  || (error == SpeechRecognizer.ERROR_SPEECH_TIMEOUT)){

  }  
  else if(ERROR_RECOGNIZER_BUSY){
  }

}

这是我开始收听的代码:

 public void recognizeSpeechDirectly()
     {


        recognizer = SpeechRecognizer.createSpeechRecognizer(this.context);
        recognizer.setRecognitionListener(this);
        recognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, "org.twodee.andytest");
        recognizerIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
        recognizer.startListening(recognizerIntent);

     }

我想在出现 ERROR_RECOGNIZER_BUSY 时重新开始收听，

另一个人在 stackoverflow 上提到了这个错误，但我不清楚，无法实现。

How to handle ERROR_RECOGNIZER_BUSY

提前致谢

Answer 1

您有ERROR_RECOGNIZER_BUSY，因为当用户点击按钮并再次点击时，您调用了两次startListening。更改您的代码如下:

// class member
private boolean mIsListening;  
@Override
protected void onCreate(Bundle savedInstanceState)
{
    .........
    recognizer = SpeechRecognizer.createSpeechRecognizer(this.context);
    recognizer.setRecognitionListener(this);
    recognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    recognizerIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, "org.twodee.andytest");
    recognizerIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
}

当图标被点击时

if (!mIslistening)
{
    mIsListening = true;        
    recognizer.startListening(recognizerIntent);
}  

@Override
public void onError(int error) {
 if ((error == SpeechRecognizer.ERROR_NO_MATCH)
  || (error == SpeechRecognizer.ERROR_SPEECH_TIMEOUT)){

  }  
  else if(ERROR_RECOGNIZER_BUSY){

  }
  recognizer.startListening(recognizerIntent);
}  

@Override
    public void onPartialResults(Bundle partialResults)
    {
        mIsListening = false;
         ..........
    }  

@Override
    public void onResults(Bundle results)
    {
        mIsListening = false;
          ..........
    }