Renewed version of the Column Builder for Flutter by @slightfoot. (Original: https://gist.github.com/slightfoot/a75d6c368f1b823b594d9f04bf667231)

column_builder.dart

import 'package:flutter/widgets.dart';

class ColumnBuilder extends StatelessWidget {
  final IndexedWidgetBuilder itemBuilder;
  final MainAxisAlignment mainAxisAlignment;
  final MainAxisSize mainAxisSize;
  final CrossAxisAlignment crossAxisAlignment;
  final TextDirection? textDirection;
  final VerticalDirection verticalDirection;
  final int itemCount;

  const ColumnBuilder({
    Key? key,
    required this.itemBuilder,
    required this.itemCount,
    this.mainAxisAlignment = MainAxisAlignment.start,
    this.mainAxisSize = MainAxisSize.max,
    this.crossAxisAlignment = CrossAxisAlignment.center,
    this.verticalDirection = VerticalDirection.down,
    this.textDirection,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return new Column(
      children: new List.generate(
          this.itemCount, (index) => this.itemBuilder(context, index)).toList(),
    );
  }
}