Voice Recognition without the popup

I'm trying to imply the voice recognition intent but I don't want that popup. how can I do that? I tried this but it doesn't seem to work nor the onresult void fired :( `

public class Activity2 : Activity,IRecognitionListener
{
    private SpeechRecognizer mSpeechRecognizer;
    private Intent mSpeechRecognizerIntent; 
    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        // Create your application here

        mSpeechRecognizer = SpeechRecognizer.CreateSpeechRecognizer(this);
        mSpeechRecognizerIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
        mSpeechRecognizerIntent.PutExtra(RecognizerIntent.ExtraCallingPackage, PackageName);
        mSpeechRecognizerIntent.PutExtra(RecognizerIntent.ExtraPrompt, GetString(Resource.String.VoiceCommandsDesc));
        mSpeechRecognizerIntent.PutExtra(RecognizerIntent.ExtraLanguageModel, this.Resources.Configuration.Locale.Language);
        mSpeechRecognizerIntent.PutExtra(RecognizerIntent.ExtraMaxResults, 5);
        Button StartListening = FindViewById<Button>(Resource.Id.Startlisning);
        StartListening.Click += StartListening_Click;
    }

    void StartListening_Click(object sender, EventArgs e)
    {
        mSpeechRecognizer.StartListening(mSpeechRecognizerIntent);
    }

    public void OnBeginningOfSpeech()
    {
        throw new NotImplementedException();
    }

    public void OnBufferReceived(byte[] buffer)
    {
        throw new NotImplementedException();
    }

    public void OnEndOfSpeech()
    {
        throw new NotImplementedException();
    }

    public void OnError(SpeechRecognizerError error)
    {
        throw new NotImplementedException();
    }

    public void OnEvent(int eventType, Bundle @params)
    {
        throw new NotImplementedException();
    }

    public void OnPartialResults(Bundle partialResults)
    {
        throw new NotImplementedException();
    }

    public void OnReadyForSpeech(Bundle @params)
    {
        throw new NotImplementedException();
    }

    public void OnResults(Bundle results)
    {
        IList<string> matches = results.GetStringArrayList(SpeechRecognizer.ResultsRecognition);
    }

    public void OnRmsChanged(float rmsdB)
    {
        throw new NotImplementedException();
    }
}

} `