buildTransitions<T> abstract method
Wraps the child with one or more transition widgets which define how route
arrives on and leaves the screen.
Subclasses override this method to create a transition animation.
The MaterialPageRoute.buildTransitions method is an example of a method
that uses this to build a transition. It looks up the current
PageTransitionsTheme with Theme.of(context).pageTransitionsTheme
and delegates to this method with a PageTransitionsBuilder based
on the theme's ThemeData.platform.
Implementation
Widget buildTransitions<T>(
PageRoute<T> route,
BuildContext context,
Animation<double> animation,
Animation<double> secondaryAnimation,
Widget child,
);