Flutter Navigator 2.0

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Episode - 16 Go to Previous Page

In application coming to the previous page is also important as much as going to the next page. So lets us create a function that will handle the poping of the pages. Create a private function with name

_handlePopPage()

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bool _handelPopPages(Route<dynamic> route, result) {
    if (!route.didPop(result)) {
      return false;
    }
 }   

Ac pbi Havuwocan fuglij cbiq ku xiqu yavtuh og dxo geunl pitpyuut turw dmox vuhrzouy re bne hawisufut ahQofwera:

@override
Widget build(BuildContext context) {
  return Navigator(
    onPopPage: _handelPopPages,
    key: navigatorKey,
    pages: [],
   );
}   

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  bool _handelPopPages(Route<dynamic> route, result) {
    if (!route.didPop(result)) {
      return false;
    }

    if (route.settings.name == BookPages.loginPath ||
        route.settings.name == BookPages.signupPath ||
        route.settings.name == BookPages.homePath) {
      appStateManager.logout();
    }

    if (route.settings.name == BookPages.detailsPath) {
      bookManager.bookTapped(-1);
    }
    if (route.settings.name == BookPages.cartPath) {
      appStateManager.onCartTapped(false);
    }
    if (route.settings.name == BookPages.settingsPath) {
      appStateManager.onSettingTapped(false);
    }
    if (route.settings.name == BookPages.checkoutPath) {
      appStateManager.onCheckoutTapped(false);
    }
    if (route.settings.name == BookPages.mybooksPath) {
      appStateManager.onMyBookTapped(false);
    }
    if (route.settings.name == BookPages.readBookPath) {
      appStateManager.onReadBookTapped(false);
    }

    return true;
  }