java - SpeechRecognizer 什么都不做......我错过了什么

Question

请看下面的代码。 onBeginningOfSpeech() 被调用(甚至在我开始说话之前，顺便说一句)，但随后 - 没有。我错过了什么？

我承认代码大部分是由不同的例子组成的，我没有完全理解。但我希望它至少能做点什么，这样我就可以继续试验。感谢您的帮助。

public class SpeechRecogActivity extends Activity {
private SpeechRecognizer recog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.e("TTS_SpeechRecog", "Starting...");
        recog = SpeechRecognizer.createSpeechRecognizer(this);
        recog.setRecognitionListener(new RecogListener());
        Intent intent = RecognizerIntent.getVoiceDetailsIntent(getApplicationContext());
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "cmn-Hans-CN");
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "cmn-Hans-CN");
        intent.putExtra(RecognizerIntent.EXTRA_ONLY_RETURN_LANGUAGE_PREFERENCE, "cmn-Hans-CN");
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, "com.dummy");
        intent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, true);
        recog.startListening(intent);
    }

    private static class RecogListener implements RecognitionListener {
        @Override
        public void onBeginningOfSpeech() {
            Log.e("TTS_SpeechRecog", "onBeginningOfSpeech...");
        }

        @Override
        public void onRmsChanged(float rmsdB) {
            Log.e("TTS_SpeechRecog", "onRmsChanged...");
        }

        @Override
        public void onEndOfSpeech() {
            Log.e("TTS_SpeechRecog", "onEndOfSpeech...");
        }

        @Override
        public void onReadyForSpeech(Bundle params) {
            Log.e("TTS_SpeechRecog", "onReadyForSpeech...");
        }

        @Override
        public void onResults(Bundle data) {
            Log.e("TTS_SpeechRecog", "onResults...");
            ArrayList strlist = data.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
            for (int i = 0; i < strlist.size();i++ ) {
                Log.d("Speech", "result=" + strlist.get(i));
            }
        }

        @Override
        public void onPartialResults(Bundle partialResults) {
            Log.e("TTS_SpeechRecog", "onPartialResults...");
        }

        @Override
        public void onEvent(int eventType, Bundle params) {
            Log.e("TTS_SpeechRecog", "onEvent...");
        }

        @Override
        public void onBufferReceived(byte[] buffer) {
            Log.e("TTS_SpeechRecog", "onBufferReceived...");
        }

        @Override
        public void onError(int error) {
            Log.e("TTS_SpeechRecog", "onBeginningOfSpeech...");
        }
    }
}

Answer 1

也许你忘了添加权限。

android.permission.RECORD_AUDIO

在 API 23 之前你可以添加:

<code><uses-permission android:name="android.permission.RECORD_AUDIO" /></code>

在 API 23 之后使用运行时权限。