Running Android TTS in a Service

Question

I\'m trying to get Android\'s TTS to run inside a service, but I have no idea why it isn\'t working, it compiles, doesn\'t crash, but it just doesn\'t work.

The Toast no

Answer 1

Well, making this question gave me a better answer than I could find with google.

Go to the answer to this question, and change it to fit your application.

TTS doesn't speak from a service whereas it does it from an activity in android

Answer 2

You can do like below: It's working for me. You have to create an activity to start this service, like this: this.startService(intent)

public class TTSService extends Service implements TextToSpeech.OnInitListener{

private String str;
private TextToSpeech mTts;
private static final String TAG="TTSService";

@Override

public IBinder onBind(Intent arg0) {

    return null;
}


@Override
public void onCreate() {

      mTts = new TextToSpeech(this,
                this  // OnInitListener
                );
      mTts.setSpeechRate(0.5f);
      Log.v(TAG, "oncreate_service");
     str ="turn left please ";
    super.onCreate();
}


@Override
public void onDestroy() {
    // TODO Auto-generated method stub
     if (mTts != null) {
            mTts.stop();
            mTts.shutdown();
        }
        super.onDestroy();
}

@Override
public void onStart(Intent intent, int startId) {


    sayHello(str);

    Log.v(TAG, "onstart_service");
    super.onStart(intent, startId);
}

@Override
public void onInit(int status) {
    Log.v(TAG, "oninit");
     if (status == TextToSpeech.SUCCESS) {
            int result = mTts.setLanguage(Locale.US);
            if (result == TextToSpeech.LANG_MISSING_DATA ||
                result == TextToSpeech.LANG_NOT_SUPPORTED) {
                Log.v(TAG, "Language is not available.");
            } else {

                sayHello(str);

            }
        } else {
            Log.v(TAG, "Could not initialize TextToSpeech.");
        }
}
private void sayHello(String str) {
      mTts.speak(str,
                TextToSpeech.QUEUE_FLUSH, 
                null);
}
}

Answer 3

https://developer.android.com/reference/android/speech/tts/TextToSpeechService.html

since API Level 14, android has added a default TextToSpeech Service class that does what you want.