locales method

@override Future<List> locales()

returns the list of speech locales available on the device.

Implementation

@override
Future<List<dynamic>> locales() async {
  var availableLocales = [];
  var lang = _webSpeech?.lang;
  if (null != lang && lang.isNotEmpty) {
    lang = lang.replaceAll(':', '_');
    availableLocales.add('$lang:$lang');
  }
  return availableLocales;
}