How to change the scroll physics using CarouselSlider in Flutter? - flutter

Question

For example, if someone swiped the carousel once quickly, it would spin from 1 to 100 (currently its quite stiff and moves about 2 places).
I have tried to achieve this by creating a CustomScrollPhysics class that extends ScrollPhysics, and overriding the SpringDescription but this doesn't seem to work and not really sure if this is the right way to go about this?
class CarouselSpring extends StatefulWidget {
const CarouselSpring({Key? key}) : super(key: key);
#override
State<CarouselSpring> createState() => _CarouselSpringState();
}
class _CarouselSpringState extends State<CarouselSpring> {
#override
Widget build(BuildContext context) {
final size = MediaQuery.of(context).size;
final List<int> items = [];
for (int i = 0; i < 100; i++) {
items.add(i);
}
return Scaffold(
body: Center(
child: SizedBox(
height: size.height * 0.50,
width: size.width * 0.50,
child: CarouselSlider(
items:
items.map((e) => Center(child: Text(e.toString()))).toList(),
options: CarouselOptions(
scrollPhysics: CustomScrollPhysics(),
),
),
),
),
);
}
}
class CustomScrollPhysics extends ScrollPhysics {
static final SpringDescription customSpring =
SpringDescription.withDampingRatio(mass: 1, stiffness:99);
#override
SpringDescription get spring => customSpring;
}

Answer 1

Thanks to the link provided by #pskink, I just needed to override the applyTo method in the CustomScrollPhysics class which extends ScrollPhysics.
Now I can adjust the scroll physics (e.g. here can spin through really fast on one flick).
class CustomScrollPhysics extends ScrollPhysics {
static final SpringDescription customSpring =
SpringDescription.withDampingRatio(mass: 200, stiffness:1);
#override
CustomScrollPhysics applyTo(ScrollPhysics? ancestor){
return CustomScrollPhysics();
}
#override
SpringDescription get spring => customSpring;
}