gistfile1.java

public class SpeechHelper implements OnInitListener {

	private static TextToSpeech mTts;
	private String text; //data to speech
	private static SpeechHelper helper;
	
	public static SpeechHelper getInstance(){
		if(helper == null){
			helper = new SpeechHelper();
		}
		return helper;
	}
	
	
	public void say(String text, Context context){
		
		if(mTts == null){
			this.text = text;
			mTts = new TextToSpeech(context, (OnInitListener) helper);
					
		}
		else{
			mTts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
		}
	}
	
	
	@Override
	public void onInit(int status) {
		// TODO Auto-generated method stub
		if (status == TextToSpeech.SUCCESS) {
			mTts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
		}
	}
	
	public void stopTTS(){
		if(mTts != null){
			mTts.shutdown();
			mTts.stop();
			mTts = null;
		}
	}
}