inheritedWidget
import 'package:flutter/widgets.dart';
class MyInherited extends InheritedWidget {
const MyInherited({
Key? key,
required Widget child,
}) : super(key: key, child: child);
// Here be dragons: null check (!) used, but if there's no
// MyInhereted over where you used it this will throw.
static MyInherited of(BuildContext context) {
return context.dependOnInheritedWidgetOfExactType<MyInherited>()!;
}
//if you have properties, it should look something like:
// bool updateShouldNotify(MyInherited old) => old.prop !== new.prop;
//if you don't:
@override
bool updateShouldNotify(MyInherited old) => false;
}