Localizations constructor Null safety

Localizations(
  1. {Key? key,
  2. required Locale locale,
  3. required List<LocalizationsDelegate> delegates,
  4. Widget? child}
)

Create a widget from which localizations (like translated strings) can be obtained.

Implementation

Localizations({
  Key? key,
  required this.locale,
  required this.delegates,
  this.child,
}) : assert(locale != null),
     assert(delegates != null),
     assert(delegates.any((LocalizationsDelegate<dynamic> delegate) => delegate is LocalizationsDelegate<WidgetsLocalizations>)),
     super(key: key);