代码之家 › 专栏 › 技术社区 › Ranjit Vamadevan

除onClick等按钮事件外,正常调用时语音识别器不工作

speech-recognition android java

Ranjit Vamadevan · 技术社区 · 7 年前

我的程序中有语音识别器,当我直接在onCreate方法中运行startListening方法时,语音识别器似乎不起作用。

下面是我的节目。

       SpeechRecognizer mSpeechRecognizer;
Intent mSpeechRecognizerIntent;
TextView textView;
String speakId = "one";
String oldId = "";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_robo);
    textView = (TextView) findViewById(R.id.textView);

    mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);


    mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE,
            Locale.getDefault());


    mSpeechRecognizer.setRecognitionListener(new RecognitionListener() {
        @Override
        public void onReadyForSpeech(Bundle params) {

        }

        @Override
        public void onBeginningOfSpeech() {

        }

        @Override
        public void onRmsChanged(float rmsdB) {

        }

        @Override
        public void onBufferReceived(byte[] buffer) {

        }

        @Override
        public void onEndOfSpeech() {

        }

        @Override
        public void onError(int error) {

        }

        @Override
        public void onResults(Bundle results) {
            ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
            textView.setText(matches.get(0));

            //displaying the first match
            //if (matches != null)
            //processResult(matches.get(0));
        }

        @Override
        public void onPartialResults(Bundle partialResults) {

        }

        @Override
        public void onEvent(int eventType, Bundle params) {

        }
    });

    /*
        below SpeechRecognizer does not start listening when called in MainActivity.
         */

    mSpeechRecognizer.startListening(mSpeechRecognizerIntent);


}

    public void Listen(View view) {
    mSpeechRecognizer.startListening(mSpeechRecognizerIntent);
}

为什么当代码放在onCreate方法中而不是onClick方法中时不起作用。

1 回复 | 直到 7 年前

Ranjit Vamadevan 7 年前

我刚刚在createSpeechRecognizer之后设置了used setRecognizationListener,代码正在运行。

    mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
    mSpeechRecognizer.setRecognitionListener(recognitionListener);

    mSpeechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    mSpeechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE,
            Locale.getDefault());

然后打电话来

 mSpeechRecognizer.startListening(mSpeechRecognizerIntent);

    RecognitionListener recognitionListener = new RecognitionListener() {
        @Override
        public void onReadyForSpeech(Bundle params) {

        }

        @Override
        public void onBeginningOfSpeech() {

        }

        @Override
        public void onRmsChanged(float rmsdB) {

        }

        @Override
        public void onBufferReceived(byte[] buffer) {

        }

        @Override
        public void onEndOfSpeech() {

        }

        @Override
        public void onError(int error) {
            String message;
            switch (error) {
                case SpeechRecognizer.ERROR_AUDIO:
                    message = "Audio recording error";
                    break;
                case SpeechRecognizer.ERROR_CLIENT:
                    message = "Client side error";
                    break;
                case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
                    message = "Insufficient permissions";
                    break;
                case SpeechRecognizer.ERROR_NETWORK:
                    message = "Network error";
                    break;
                case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
                    message = "Network timeout";
                    break;
                case SpeechRecognizer.ERROR_NO_MATCH:
                    message = "No match";
                    break;
                case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
                    message = "RecognitionService busy";
                    break;
                case SpeechRecognizer.ERROR_SERVER:
                    message = "error from server";
                    break;
                case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
                    message = "No speech input";
                    break;
                default:
                    message = "Didn't understand, please try again.";
                    break;
            }
            textView.setText(message);
        }

        @Override
        public void onResults(Bundle results) {
            ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
            textView.setText(matches.get(0));

            //displaying the first match
            //if (matches != null)
                //processResult(matches.get(0));
        }

        @Override
        public void onPartialResults(Bundle partialResults) {

        }

        @Override
        public void onEvent(int eventType, Bundle params) {

        }


};