Flutter Navigator pop

Flutter has an imperative routing mechanism, the Navigator widget, and a more idiomatic declarative routing mechanism (which is similar to build methods as used with widgets), the Router widget . The two systems can be used together (indeed, the declarative system is built using the imperative system).

MaterialPageRoute<T> class Null safety. A modal route that replaces the entire screen with a platform-adaptive transition . For Android, the entrance transition for the page slides the route upwards and fades it in. The exit transition is the same, but in reverse.

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 .

So in case of Flutter, when we navigate to another screen, we use the push methods and Navigator widget adds the new screen onto the top of the stack. Naturally, the pop methods would remove that screen from the stack .