Unable to detect completion of TTS (callback) android.

Question

I am developing android application in which I am using text to speech conversion.What I need when I open my application run text to speech conversion. After completion of this I want to do some thing.My code looks like

public class Mainactivity extends Activity implements OnInitListener, OnUtteranceCompletedListener{
    private static int REQ_CODE = 1;
    private TextToSpeech tts = null;
    private boolean ttsIsInit = false;

    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    startTextToSpeech();
    }

    private void startTextToSpeech() {
        Intent intent = new Intent(Engine.ACTION_CHECK_TTS_DATA);
        startActivityForResult(intent, REQ_CODE);
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQ_CODE) {
            if (resultCode == Engine.CHECK_VOICE_DATA_PASS) {
                tts = new TextToSpeech(this, this); 
            } 
            else {
                Intent installVoice = new Intent(Engine.ACTION_INSTALL_TTS_DATA);
                startActivity(installVoice);
            }
        }
    }

        public void onInit(int status) {
            if (status == TextToSpeech.SUCCESS) {
                ttsIsInit = true;
                int result = tts.setOnUtteranceCompletedListener(this);
                if (tts.isLanguageAvailable(Locale.ENGLISH) >= 0)
                    tts.setLanguage(Locale.ENGLISH);
                tts.setPitch(5.0f);
                tts.setSpeechRate(1.0f);

                 HashMap<String, String> myHashAlarm = new HashMap<String, String>();
                  myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_STREAM, String.valueOf(AudioManager.STREAM_ALARM));
                  myHashAlarm.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "SOME MESSAGE");
                  tts.speak("hi how are you?", TextToSpeech.QUEUE_FLUSH, myHashAlarm);
             }
        }

   @Override
   public void onDestroy() {
      if (tts != null) {
        tts.stop();
        tts.shutdown();
      }
        super.onDestroy();
     }

   @Override
   public void onUtteranceCompleted(String uttId) {
       Toast.makeText(Mainactivity.this,"done", Toast.LENGTH_LONG).show();
       if (uttId.equalsIgnoreCase("done")) {
           Toast.makeText(Mainactivity.this,"inside done", Toast.LENGTH_LONG).show();
       } 
   }
}

When I open my application text to speech working fine. But how to detect whether text to speech completed or not.Need help..... Thank you.....

Answer 1

If you are using API level 15 or later you can set a progress listener on your TextToSpeech reference using

setOnUtteranceProgressListener(UtteranceProgressListener listener)

You will get callbacks reporting the progress of the TTS, including a callback when it is finished. See http://developer.android.com/reference/android/speech/tts/TextToSpeech.html and http://developer.android.com/reference/android/speech/tts/UtteranceProgressListener.html

However, I notice that you're already using the deprecated OnUtteranceCompletedListener. Are you getting the callbacks on onUtteranceCompleted()? That should also work.