Flutter - how avoid pushing same route twice?

Question

This structure of my app navigation:

CupertinoTabScaffold ->tabBuilder:TabPage-> tabBar: CupertinoTabBar

My TabPage:

return MaterialApp(
  navigatorKey: navKey,    
  home: child,
);

I have separate navigation in each tab. by clicking on the bottom tab, I go back to the beginning. this is my code and this is working now:

 key.currentState!.pushNamedAndRemoveUntil('/', ModalRoute.withName('/'));

for each tab I have my own navigation key. I pass it to each TabPage.

but if the page is at the root I need to avoid pushing same route twice. I tried this code but it doesn't work:

  key.currentState!.pushNamedAndRemoveUntil("/",
    (route) => route.isFirst && route.settings.name == "/" ? false : true);

how avoid pushing same route twice?

Solution

Navigator.of(context).pushNamedAndRemoveUntil(
   "newRouteName",
   (route) => route.isCurrent && route.settings.name == "newRouteName"
  ? false
  : true);

t will pop the current route if name of the route is "newRouteName" and then push new one, else will not pop anything.

Edit: Latest flutter provides ModalRoute.of(context).settings.name to get the name of current route.

Comments

[FetFrumos]

how is this different from my version?