Pop a screen in between in Flutter-CodePudding

I pushed three screens: ScreenOne > ScreenTwo(1) > ScreenTwo(2)

I'm at the second instance of ScreenTwo now, but I want to remove the first instance of ScreenTwo from the stack, so it should be ScreenOne > ScreenTwo(2).

When launching ScreenTwo(2) I know I shouldn't remove ScreenTwo(1) from the stack yet, so I can't just call Navigator.replace(). I really need to have ScreenOne > ScreenTwo(1) > ScreenTwo(2) for some time, and then remove the first instance of ScreenTwo(1).

How I can handle it? Navigator.pop() and similars only take into account the screen or screens on top of the stack.

If someone needs more context, this is for a phone app. Not an app for phones, but an app that mimics the behavior of a phone. So in reality, we have HomeScreen > CallScreen(Caller1) > CallScreen(Caller2). As the app can handle different calls at a time the first approach has been to map every call to a CallScreen and let every screen handle their own call events, so the first call can finish while the user is talking in the second one.

CodePudding user response：

As discussed in this post: How can I pop to specific screen in flutter

I quote:

If you didn't define any route in the MaterialApp then you need to define at the time of push.

Navigator.of(context).push(
    MaterialPageRoute(builder: (_) {
      return SecondPage();
    },
      settings: RouteSettings(name: 'SecondPage',),
    ));

You need to define the same route name

Navigator.of(context).popUntil((route){
  return route.settings.name == 'SecondPage';
})

;

Or as an alternative if you did define the routes you can use that:

pushNamedAndRemoveUntil(
            '/BottomNavigation', (Route<dynamic> route) => false);

CodePudding user response：

In this case it is most suitable that you go from screen1 > Screen2 > replace previous with Screen3

Use this navigation from screen 2 to screen 3. Navigator.pushReplacementNamed(context,"Third Screen");