transitionBuilder abstract method

Widget transitionBuilder(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child,)

A builder that defines how the route arrives on and leaves the screen.

The buildTransitions method is typically used to define transitions that animate the new topmost route's comings and goings. When the Navigator pushes a route on the top of its stack, the new route's primary animation runs from 0.0 to 1.0. When the Navigator pops the topmost route, e.g. because the use pressed the back button, the primary animation runs from 1.0 to 0.0.

Implementation

Widget transitionBuilder(
  BuildContext context,
  Animation<double> animation,
  Animation<double> secondaryAnimation,
  Widget child,
);