didChangeNext method
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.
The nextRoute
argument will be null if there's no new next route (i.e.
if isCurrent is true).
Implementation
@override
void didChangeNext(Route? nextRoute) {
if (nextRoute is ModalBottomSheetRoute) {
_nextModalRoute = nextRoute;
}
super.didChangeNext(nextRoute);
}