GetX update a widget with list of widgets - flutter

Question

So what I want to do is pretty simple I have an integer called currentStep and I also have a list of widgets inside a builder when I click the button its updates both currentStep value and the widget that should be returned.
Here's the code:
Widget StackPositioned(BuildContext context) {
return Positioned(
top: 260,
width: MediaQuery.of(context).size.width,
child: Container(
width: MediaQuery.of(context).size.width,
margin: const EdgeInsets.symmetric(horizontal: 15),
child: Column(
children: <Widget>[
RegistrationHeader(context),
const Gap(20),
RegistrationSteps(context)[currentStep.value],
],
),
),
);
}
List of widgets:
List<Widget> RegistrationSteps(BuildContext context) {
return [
Column(
children: <Widget>[
Label(context, "Tam Adınız"),
const Gap(10),
FullNameInput(context),
const Gap(15),
Label(context, "E-Posta"),
const Gap(10),
EmailInputField(context),
const Gap(15),
Label(context, "Şifreniz"),
const Gap(10),
PasswordInputField(context),
....
And the updater:
TextButton(
onPressed: () => currentStep.value++,
style: TextButton.styleFrom(
backgroundColor: Colors.purple,
minimumSize: Size(MediaQuery.of(context).size.width, 50),
),
child: Text(
"Devam Et",
style: Displays.display2.copyWith(color: Colors.white),
),
),
My integer:
RxInt currentStep = 0.obs;
Edit: I have done this with setState() but, GetX is the project requirement.

Answer 1

Just wrap your RegistrationSteps(context)[currentStep.value],widget with Obx.
like this
Obx(() {
return RegistrationSteps(context)[currentStep.value];
});
It will make RegistrationSteps widget observable. that means if anyvalue changes inside it , it will update itself.