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Navigator 2.0

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petrovWF edited this page Jun 17, 2021 · 1 revision

Navigator 2.0

We use Navigator 2.0 which is the declarative way for navigation. We already implemented Navigator 2.0 and encourage you to continue using it but if you prefer the old imperative way feel free to make those changes.

For more detailed information about navigation and routing head to the official documentation.

Requirements

Before you start using the declarative way for navigation you should be familiar with:

  • Page
  • Router
  • RouterDelegate
  • BackButtonDispatcher

Pages Pages are immutable objects and are used to set the navigators history stack. These are all implemented pages:

  • LoginPage
  • PasswordPage
  • UsernamePage
  • TaskDetailsPage
  • TaskListPage
  • LoadingPage
  • SettingsPage

Feel free to add or remove any of these.

Router

This classes will wrap the RouterDelegate and provide it down the build tree.

  • AuthRouter
  • HomeRouter

RouterDelegate

This classes will inform the Router when to rebuild and they will decide which pages to be shown with the help of the state.

  • AppRouterDelegate
  • HomeRouterDelegate
  • AuthRouterDelegate

Usage

In app.dart there are 3 global keys which can be used to access the wanted navigator even without context available.
Learn more about the navigatorKey.

In app.dart build method, Router instance will be created with:

  • routerDelegate: _appRouterDelegate
  • backButtonDispatcher: RootBackButtonDispatcher()

Root router for this application is AppRouterDelegate.

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