Flutter Navigator 2

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.

The MaterialApp. router() is another convenience. “Creates a [MaterialApp] that uses the [Router] instead of a [Navigator] .” The router constructor provides you a way to create a MaterialApp and configure and return a custom Navigator.

In Flutter these elements are called routes and they’re managed by a Navigator widget. The navigator manages a stack of Route objects and provides two ways for managing the stack, the declarative API Navigator. pages or imperative API Navigator. push and Navigator .