Animated smooth indicator is not responding - flutter

Question

I am using smooth_page_indicator, but the Animated smooth indicator is not responding, I am pretty sure i am missing something here. i have a feeling it has something to do with how i created my list. in the application, however, the switcher shows that i have 3 main items. but still, as always, assistance would be really appreciated.
class ExploreCollections extends StatefulWidget {
const ExploreCollections({Key? key}) : super(key: key);
#override
State<ExploreCollections> createState() => _ExploreCollectionsState();
}
class _ExploreCollectionsState extends State<ExploreCollections> {
int _activeIndex = 0;
final List<Widget> _images = [
Stack(
children: [
Image.asset('assets/images/image 10.png'),
Padding(
padding: const EdgeInsets.only(left: 55.0, top: 230),
child: Text(
'Luxury \n Fashion \n &Accessories'.toUpperCase(),
style: TextStyle(
fontFamily: 'Bodoni',
fontSize: 40,
fontWeight: FontWeight.w500,
color: Colors.grey.shade700
),
),
),
Padding(
padding: const EdgeInsets.only(top: 250.0),
child: Center(
child:SvgPicture.asset('assets/iconImages/Button.svg') ,
),
),
],
),
Stack(
children: [
Image.asset('assets/images/leeloo.jpeg'),
],
),
Stack(
children: [
Image.asset('assets/images/ayaka.jpeg'),
],
),
];
#override
Widget build(BuildContext context) {
return SingleChildScrollView(
child: Stack(
children: [
CarouselSlider.builder(
options: CarouselOptions(
viewportFraction: 1,
aspectRatio: 1.8,
height: MediaQuery.of(context).size.height,
autoPlay: false,
initialPage: 0,
enableInfiniteScroll: false,
enlargeCenterPage: true,
onPageChanged: (index, reason){
_activeIndex = index;
}
),
itemCount: _images.length,
itemBuilder: (BuildContext context, int index, int realIndex) {
return _images[index];
},
),
Center(
child: buildIndicator(),
),
],
),
);
}
Widget buildIndicator(){
return AnimatedSmoothIndicator(
activeIndex: _activeIndex,
count: _images.length
);
}
}

Answer 1

Call setState to update the UI
onPageChanged: (index, reason) {
_activeIndex = index;
setState(() {});
}),