FormGroup onWillPop does not work correctly formgroup is not yet initalized.

[mavriq-dev]

I'm trying to use the ReactiveForms onWillPop to handle saving to a database. I have it set up like this.

return ReactiveForm(
      formGroup: form,
      onWillPop: () => _onWillPop(context, ref),
      child: SomeWidget()

In the following code:

 Future<bool> _onWillPop(BuildContext context, WidgetRef ref) async {
    final formGroup = ReactiveForm.of(context) as FormGroup;

an error is thrown as ReactiveForm.of returns null. Calling the same function with a submit button works fine. Is there any way that onWillPop could be changed so it is thrown after the form is initialized?

[joanpablo]

Hi @mavriq-dev Thanks for the feedback.

Based on the example you wrote above, the context object you are passing to your _onWillPop() does not include the ReactiveForm widget. You are providing the context of the parent widget and not the context of the ReactiveForm widget. Instead, you can directly pass the form object to your _onWillPop method.

return ReactiveForm(
      formGroup: form,
      onWillPop: () => _onWillPop(form, ref),
      child: SomeWidget()