createRoute method
Creates the Route that corresponds to this page.
The created Route must have its Route.settings property set to this Page.
Implementation
@override
Route<T> createRoute(BuildContext context) => DialogRoute(
context: context,
barrierColor: barrierColor,
barrierDismissible: barrierDismissible,
settings: this,
builder: builder,
anchorPoint: anchorPoint,
barrierLabel: barrierLabel,
useSafeArea: useSafeArea,
themes: themes,
);