public override void didStartUserGesture(Route route, Route previousRoute)
{
D.assert(navigator != null);
D.assert(route != null);
_maybeStartHeroTransition(route, previousRoute, HeroFlightDirection.pop, true);
}
public override void didPush(Route route, Route previousRoute)
{
D.assert(navigator != null);
D.assert(route != null);
_maybeStartHeroTransition(previousRoute, route, HeroFlightDirection.push, false);
}
