List of items (full screen) in vertical scroll that perfectly snaps into place. (#wheel_list_snap)

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark(),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: MyWidget(),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  final controller = FixedExtentScrollController();
  @override
  Widget build(BuildContext context) {
    return Scrollbar(
      controller: controller,
      thumbVisibility: true,
      child: ListWheelScrollView(
        physics: const FixedExtentScrollPhysics(),
        controller: controller,
        useMagnifier: true,
        magnification: 1.25,
        itemExtent: MediaQuery.sizeOf(context).height * 0.8,
        children: [
          Container(
            width: MediaQuery.sizeOf(context).width * 0.8,
            color: Colors.red,
            child: const Center(child: Text('0')),
          ),
          Container(
            width: MediaQuery.sizeOf(context).width * 0.8,
            color: Colors.blue,
            child: const Center(child: Text('1')),
          ),
          Container(
            width: MediaQuery.sizeOf(context).width * 0.8,
            color: Colors.green,
            child: const Center(child: Text('2')),
          ),
        ],
      ),
    );
  }
}