What is onGenerateRoute in Flutter?

Replace the current route of the navigator that most tightly encloses the given context by pushing the given route and then disposing the previous route once the new route has finished animating in .

PageRoute<T> class Null safety. A modal route that replaces the entire screen .

onGenerateRoute property Null safety The route generator callback used when the app is navigated to a named route . If this returns null when building the routes to handle the specified initialRoute, then all the routes are discarded and Navigator. defaultRouteName is used instead ( / ). See initialRoute.

In Flutter, a route is just a widget.

Flutter Navigator class Navigator provides methods to mutate the stack by a push to stack or by popping from the stack . The Navigator. push method is for navigating to a newer page and Navigator. pop is for going back from the current page.