localeOf method

Locale localeOf (BuildContext context, { bool nullOk: false })

The locale of the Localizations widget for the widget tree that corresponds to BuildContext context.

If no Localizations widget is in scope then the Localizations.localeOf method will throw an exception, unless the nullOk argument is set to true, in which case it returns null.

Implementation 

static Locale localeOf(BuildContext context, { bool nullOk = false }) {
  assert(context != null);
  assert(nullOk != null);
  final _LocalizationsScope scope = context.inheritFromWidgetOfExactType(_LocalizationsScope);
  if (nullOk && scope == null)
    return null;
  assert(scope != null, 'a Localizations ancestor was not found');
  return scope.localizationsState.locale;
}