Flutter: Remove ChangeNotifier Boilerplate `notifyListeners()` - flutter

Question

Is there something like #annotation to remove the boilerplate when creating a model class that extend ChangeNotifier?
Boilerplate
class MyModel extends ChangeNotifier{
bool _isLoading = true;
bool get isLoading => _isLoading;
set isLoading(bool value) {
_isLoading = value;
notifyListeners();
}
}
Using something like #annotation
class MyModel extends ChangeNotifier{
#Notify
bool _isLoading = true;
}

Answer 1

You can try Get for your state management: https://pub.dev/packages/get
Reactive programming with Get is as easy as using setState.
First you can create a new controller:
import 'package:get/get.dart';
class FormController extends GetxController {
FormController();
Rx<bool> _isLoading = false.obs;
set setLoading(value) => this._isLoading.value = value;
bool get loading => this._isLoading.value;
}
And in the UI, when you want to show that value and update the screen whenever the values changes, simply do this:
Obx(
() => formController.loading
? Center(
child: CircularProgressIndicator(),
)
: ElevatedButton(
onPressed: formController.googleLoading ||
formController.anonymousLoading
? null
: () async {
formController.setLoading = true;
if (_formKey.currentState!.validate()) {
await userController
.loginWithEmailAndPassword(
formController.email,
formController.password);
}
formController.setLoading = false;
},
child: Text('login'.tr),
),
),
See an more in-depth explanation of state management here. There you will see more examples and also the difference between the simple state manager and the reactive state manager
You will get a good idea of GetX power.