delegatedTransition property

Provideds a secondary transition to the previous route.

Used for the purposes of coordinating transitions between two routes with different route transitions. When a route is added to the stack, the original topmost route will look for this transition, and if available, it will use the delegatedTransition from the incoming transition to animate off the screen.

If the return of the DelegatedTransitionBuilder is null, then by default the original transition of the routes will be used. This is useful if a route can conditionally provide a transition based on the BuildContext.