didChangeNext method

  1. @override
void didChangeNext (
  1. Route nextRoute

This route's next route has changed to the given new route. This is called on a route whenever the next route changes for any reason, so long as it is in the history, including when a route is first added to a Navigator (e.g. by Navigator.push), except for cases when didPopNext would be called. nextRoute will be null if there's no next route.


void didChangeNext(Route<dynamic> nextRoute) {
  assert(_controller != null, '$runtimeType.didChangeNext called before calling install() or after calling dispose().');
  assert(!_transitionCompleter.isCompleted, 'Cannot reuse a $runtimeType after disposing it.');