CupertinoTabView constructor

const CupertinoTabView({Key key, WidgetBuilder builder, String defaultTitle, Map<String, WidgetBuilder> routes, RouteFactory onGenerateRoute, RouteFactory onUnknownRoute, List<NavigatorObserver> navigatorObservers: const [] })

Creates the content area for a tab in a CupertinoTabScaffold.

Implementation 

const CupertinoTabView({
  Key key,
  this.builder,
  this.defaultTitle,
  this.routes,
  this.onGenerateRoute,
  this.onUnknownRoute,
  this.navigatorObservers = const <NavigatorObserver>[],
}) : assert(navigatorObservers != null),
     super(key: key);