[Android] Google Speech Recognition - Implement our own UI

In [Android] Google Speech Recognition - using RecognizerIntent, we show how to do speech recognition with RecognizerIntent.
However, the UI is pre-defined.
Can we implement our own UI for that?

For such purpose, we need to add SpeechRecognizer as show below:

Intent recognizerIntent;
private SpeechRecognizer sr;

sr = SpeechRecognizer.createSpeechRecognizer(this);       
sr.setRecognitionListener(new listener());        
recognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);        
recognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
recognizerIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS,5);//5 is the number of results to return 

//To start to recognize...put the code in onClick() event of some button
sr.startListening(recognizerIntent);  

//To stop to recognize...put the code in onClick() event of some button
//In general, the recognition process will stop automatically after completion.
//If we want to interrupt it or some abnormal situations happened, we can use the codes below..
sr.stopListening();
sr.cancel();

The class listener() used is shown below:

private static final int RECOGNIZER_ERROR_NETWORK_TIMEOUT = 1;//Network timeout
private static final int RECOGNIZER_ERROR_NETWORK = 2;//Other network related errors
private static final int RECOGNIZER_ERROR_AUDIO = 3;//Cannot record the voice
private static final int RECOGNIZER_ERROR_SERVER = 4;//Server is abnormal
private static final int RECOGNIZER_ERROR_CLIENT = 5;//Other abnormal cases in client side
private static final int RECOGNIZER_ERROR_SPEECH_TIMEOUT = 6;//No voice input
private static final int RECOGNIZER_ERROR_NO_MATCH = 7;//No matched result
private static final int RECOGNIZER_ERROR_RECOGNIZER_BUSY = 8;//RecognitionService is busy
private static final int RECOGNIZER_ERROR_INSUFFICIENT_PERMISSIONS = 9;//No sufficient permission

class listener implements RecognitionListener          
{
    public void onReadyForSpeech(Bundle params)
    { 
      //Ready to accept the voice input. We can show some icon to notify the user that he/she can start talking 
    }
    public void onBeginningOfSpeech()
    {  
      //User start to talk. We can show some icon to tell the user that the program has got the input voice.        
    }
    public void onRmsChanged(float rmsdB)
    { 
      //The intensity of input voice, ranged from 0 to 10.
      //We can show some icon according to the intensity.
      //onRmsChanged() will be called frequently. We'd better update the UI if its value varies larger than some range.
    }
    public void onBufferReceived(byte[] buffer)
    {       
    }
    public void onEndOfSpeech()
    {
       //User stop talking. The server will start to recognize.
    }
    public void onError(int error)
    {
       switch(error)
       {
        case RECOGNIZER_ERROR_NETWORK_TIMEOUT:         
         break;
        case RECOGNIZER_ERROR_NETWORK:         
         break;
        case RECOGNIZER_ERROR_AUDIO:         
         break;
        case RECOGNIZER_ERROR_SERVER:         
         break;
        case RECOGNIZER_ERROR_CLIENT:         
         break;
        case RECOGNIZER_ERROR_SPEECH_TIMEOUT:         
         break;
        case RECOGNIZER_ERROR_NO_MATCH:         
         break;
        case RECOGNIZER_ERROR_RECOGNIZER_BUSY:         
         break;
        case RECOGNIZER_ERROR_INSUFFICIENT_PERMISSIONS:         
         break;
       }
    }
    public void onResults(Bundle results)                   
    {
        //The recognition result
        ArrayList data = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);         
        String firstMatched = (String) data.get(0);         
        txtResult.setText(firstMatched);
    }
    public void onPartialResults(Bundle partialResults)
    {
    }
    public void onEvent(int eventType, Bundle params)
    {
    }
}