【发布时间】:2018-01-08 05:44:10
【问题描述】:
我知道 SpeechRecognizer 在 android 中是如何工作的。我有一个要求,我需要在一段时间后调用 SpeechRecognizer.stopListening() 方法。但在那之后,当我再次启动监听器时,它就不起作用了。
启动 SpeechRecognizer 的代码
private void promptSpeechInput() {
/*
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
getString(R.string.speech_prompt));
try {
startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
} catch (ActivityNotFoundException a) {
Toast.makeText(getApplicationContext(),
getString(R.string.speech_not_supported),
Toast.LENGTH_SHORT).show();
}
*/
speechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
speechIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, context.getPackageName());
// for more: https://stackoverflow.com/questions/7973023/what-is-the-list-of-supported-languages-locales-on-android
/*intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en_IN"); */
speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
speechIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);
speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS, 200);
speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS, new Long(5000));
speechIntent.putExtra(RecognizerIntent.EXTRA_SPEECH_INPUT_POSSIBLY_COMPLETE_SILENCE_LENGTH_MILLIS, new Long(5000));
speechIntent.putExtra("android.speech.extra.DICTATION_MODE", false);
speechIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, false);
/*
intent.putExtra("android.speech.extra.GET_AUDIO_FORMAT", "audio/AMR");
intent.putExtra("android.speech.extra.GET_AUDIO", true);
*/
sr.startListening(speechIntent);
}
几秒钟后我确实会使用
sr.stopListening();
在收到 onResults 的结果后,我正在尝试使用
再次启动它sr.startListening(speechIntent);
但它不起作用。我应该怎么做才能让它工作?
编辑
如果我再次调用 promptSpeechInput(); 方法而不是 sr.startListening(speechIntent); 它开始重复给我SpeechRecognizer.ERROR_RECOGNIZER_BUSY 错误。
【问题讨论】:
标签: android kotlin speech-recognition