Method initTTS

android/src/org/coolreader/CoolReader.java:466–513

(final OnTTSCreatedListener listener)

	boolean ttsError;
	
	public boolean initTTS(final OnTTSCreatedListener listener) {
		if ( ttsError || !TTS.isFound() ) {
			if ( !ttsError ) {
				ttsError = true;
				showToast("TTS is not available");
			}
			return false;
		}
		if ( ttsInitialized && tts!=null ) {
			BackgroundThread.instance().executeGUI(new Runnable() {
				@Override
				public void run() {
					listener.onCreated(tts);
				}
			});
			return true;
		}
		if ( ttsInitialized && tts!=null ) {
			showToast("TTS initialization is already called");
			return false;
		}
		showToast("Initializing TTS");
    	tts = new TTS(this, new TTS.OnInitListener() {
			@Override
			public void onInit(int status) {
				//tts.shutdown();
				L.i("TTS init status: " + status);
				if ( status==TTS.SUCCESS ) {
					ttsInitialized = true;
					BackgroundThread.instance().executeGUI(new Runnable() {
						@Override
						public void run() {
							listener.onCreated(tts);
						}
					});
				} else {
					ttsError = true;
					BackgroundThread.instance().executeGUI(new Runnable() {
						@Override
						public void run() {
							showToast("Cannot initialize TTS");
						}
					});
				}
			}
		});
		return true;
	}
	
	private AudioManager am;
	private int maxVolume;