flutter_riverpod如何侦听列表

import 'package:flutter_riverpod/flutter_riverpod.dart';

final listProvider = Provider.family<int, int>((ref, index) {
  // 这里可以根据索引创建和返回列表项的Provider
  return Provider<int>((ref) {
    // 这里可以返回列表项的值
    return index * 2;
  });
});

class MyWidget extends ConsumerWidget {
  @override
  Widget build(BuildContext context, ScopedReader watch) {
    final listLength = 5;

    return ListView.builder(
      itemCount: listLength,
      itemBuilder: (context, index) {
        final listItem = watch(listProvider(index));

        return ListTile(
          title: Text('Item $index'),
          subtitle: Text('Value: $listItem'),
        );
      },
    );
  }
}