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我知道SpeechRecognizer如何在android中工作。我有一個要求,我需要在一段時間後致電SpeechRecognizer.stopListening()方法。但之後,當我再次啓動監聽器時,它將無法工作。Android SpeechRecognizer沒有重新開始
代碼開始SpeechRecognizer
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);
}
講的幾秒鐘後,我使用
sr.stopListening();
而且在onResults我試圖啓動它接收結果之後再次使用
sr.startListening(speechIntent);
但它不工作。我該怎麼做才能使它工作?
EDIT
如果我叫promptSpeechInput();方法而不是sr.startListening(speechIntent);它開始給我SpeechRecognizer.ERROR_RECOGNIZER_BUSY
錯誤重複。