这是我的代码,我有一系列问题需要通过TTS提问,在每个问题之后会调用语音识别器。但我的话语监听器从未被调用。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_speech_recognizer);
tts = new TextToSpeech(this /* context */, this /* listener */);
}
//This is called after first time user clicks a button
private void processEnquiry() {
// TODO Auto-generated method stub
for(int i=0;i<EnquiryList.size();i++)
{
speak(EnquiryList.get(i).toString());
}
}
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
initialized = true;
tts.setLanguage(Locale.ENGLISH);
if (queuedText != null) {
speak(queuedText);
}
}
}
public void speak(String text) {
// If not yet initialized, queue up the text.
if (!initialized) {
queuedText = text;
return;
}
queuedText = null;
// Before speaking the current text, stop any ongoing speech.
//tts.stop();
// Speak the text.
setTtsListener();
HashMap<String, String> map = new HashMap<String, String>();
map.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID,"MessageId");
tts.speak(text, TextToSpeech.QUEUE_ADD, map);
}
private void setTtsListener()
{
final SpeechRecognizer callWithResult = this;
int listenerResult = tts.setOnUtteranceProgressListener(new UtteranceProgressListener()
{
@Override
public void onDone(String utteranceId)
{
callWithResult.onDone(utteranceId);
}
@Override
public void onError(String utteranceId)
{
callWithResult.onError(utteranceId);
}
@Override
public void onStart(String utteranceId)
{
callWithResult.onStart(utteranceId);
}
});
if (listenerResult != TextToSpeech.SUCCESS)
{
Log.e(TAG, "failed to add utterance progress listener");
}
}
public void onDone(String utteranceId)
{
callSpeechRecognition();
}
public void onError(String utteranceId)
{
}
public void onStart(String utteranceId)
{
}
TextToSpeech.SUCCESS 返回值为0。