disposing (?) a listSignal after screen is closed

[foxmind1]

I have a listSignal and i want it to reset to its initial state after i close the screen (local state)

this is what i'm currently doing but i don't want to use StatefulWidget everywhere, is there any better approach?

final selectedStocks = listSignal(<Stock>[]);

class DetailsScreen extends StatefulWidget {
...
...

@override
  void dispose() {
    selectedStocks.value = selectedStocks.initialValue;
    super.dispose();
  }

...
...

[jinyus]

There's SignalProvider but it doesn't seem to support ListSignal as yet, I'm only seeing support for regular and computed signals.

You can couple it with Provider or lite_ref to achieve that.

final selectedStocksRef = Ref.scoped(
  (_) => listSignal(<Stock>[]),
  dispose: (instance) => instance.dispose(),
);

void main() {
  runApp(LiteRefScope(child: MyApp()));
}

class DetailsScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final selectedStocks = selectedStocksRef.of(context);
    //... rest of build method ... //
  }
}

The list signal will be disposed when DetailsScreen is unmounted.

[rodydavis]

I am planning on adding a generic for it!