Unable to read passed RouteSettings inside popUntil routes - Issue only in Release/Profile

Question

This looks possible duplicate of

Flutter Navigator.popUntil() with ModalRoute.withName() not working in profile and release mode

But it's not.

The above question resolves the issue of mismatched route names, But in my case, RouteSettings is always null.

Issue only for Android and only for Release/Profile builds

// Pushing the route
Navigator.of(context).push(
    MaterialPageRoute(
        builder: (context) {
             return ScreenA();
        },
        settings: RouteSettings(name: "screenA"),
    ),
);


// Popping until pushed route
Navigator.of(context).popUntil((route) {
    print(route.settings.name);
    // Here name and arguments are always null
    return route.settings.name == 'screenA';
});

UPDATE

Also tried with pushNamed with specified routes, and onGenerateRoute method. RouteSettings.name and RouteSettings.arguments is always null.

Flutter 1.22.5

so do you mean that [ModalRoute.withName](https://api.flutter.dev/flutter/widgets/ModalRoute/withName.html) does not work too? — pskink, Jul 14 '21 at 05:13
Yes right, I basically have similar implementation of `withName` method. Both doesn't work. — Mehul Prajapati, Jul 14 '21 at 05:16
Thanks, I just tried the above snippet and all works fine, even without specifying routes it works. I definitely am doing something wrong in my project. But I have no idea at all :). Thanks for your time. — Mehul Prajapati, Jul 14 '21 at 09:33
Can this be an issue of context? I somewhere use context from the global key. — Mehul Prajapati, Jul 14 '21 at 09:36
i dont know, tried to setup a breakpoint inside `popUntil` and see whats happening there? — pskink, Jul 14 '21 at 09:38

score 1 · Accepted Answer · answered Jul 17 '21 at 16:40

I was calling popUntil from inside a dialog. Like below example,

await showDialog(
  context: context,
  builder: (context) {
    return Dialog(
      child: Container(
        child: RaisedButton(
          onPressed: () {
            Navigator.of(context).popUntil((route) {
              return route.settings.name == 'screenA';
            });
          },
        ),
      ),
    );
  },
);

And the issue was because of await, Removing it works perfectly fine. If using await before showDialog RouteSettings.name comes null.

Unable to read passed RouteSettings inside popUntil routes - Issue only in Release/Profile

1 Answers1