TextField will be cleared when the soft keyboard disappears

[rrousselgit]

TextField will be cleared when the soft keyboard disappears

[rrousselGit]

Nor can you do so with any other kind of widgets.

Widgets are immutable. You need a State subclass using hooks to preserve values between builds.

[rrousselGit]

You should not create these as fields of the class.

Instead create them using hooks inside the build method

Widget build(BuildContext context) {
  final controller = useMemoized(() => TextEditingController());
  ... 
}

[shingohu]

you mean I can't define any final variables directly from KookWidget?