private int myEngineIndex; // loop counter when initializing TTS engines
// Called from onCreate to colled all languages and voices from all TTS engines, initialize the spinners
private void getEnginesAndLangs() {
myTts = new TextToSpeech(AndyUtil.getAppContext(), null);
List<EngineInfo> engines;
engines = myTts.getEngines(); // at least we can get the list of engines without initializing myTts object…
try { myTts.shutdown(); } catch (Exception e) {};
myTts = null;
myEngineIndex = 0; // Initialize the loop iterating through all TTS engines
if (engines.size() > 0) {
for (EngineInfo ei : engines)
allEngines.add(new EngLang(ei));
myTts = new TextToSpeech(AndyUtil.getAppContext(), ttsInit, allEngines.get(myEngineIndex).name());
// DISRUPTION 1: we can’t continue here, must wait until ttsInit callback returns, see below
}
}
public void onInit(int status) {
if (myEngineIndex < allEngines.size()) {
if (status == TextToSpeech.SUCCESS) {
// Ask a TTS engine which voices it currently has installed
EngLang el = allEngines.get(myEngineIndex);
Intent in = new Intent(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
in = in.setPackage(el.ei.name); // set engine package name
try {
startActivityForResult(in, LANG_REQUEST); // goes to onActivityResult()
// DISRUPTION 2: we can’t continue here, must wait for onActivityResult()…
} catch (Exception e) { // ActivityNotFoundException, also got SecurityException from com.turboled
if (myTts != null) try {
myTts.shutdown();
} catch (Exception ee) {}
if (++myEngineIndex < allEngines.size()) {
// If our loop was not finished and exception happened with one engine,
// we need this call here to continue looping…
myTts = new TextToSpeech(AndyUtil.getAppContext(), ttsInit, allEngines.get(myEngineIndex).name());
} else {
completeSetup();
}
}
}
} else
