didStartUserGesture method Null safety

  1. @override
void didStartUserGesture(
  1. Route route,
  2. Route? previousRoute
)
override

The Navigator's routes are being moved by a user gesture.

For example, this is called when an iOS back gesture starts, and is used to disabled hero animations during such interactions.

Implementation

@override
void didStartUserGesture(Route<dynamic> route, Route<dynamic>? previousRoute) {
  assert(navigator != null);
  assert(route != null);
  _maybeStartHeroTransition(route, previousRoute, HeroFlightDirection.pop, true);
}