Column({Key key, MainAxisAlignment mainAxisAlignment: MainAxisAlignment.start, MainAxisSize mainAxisSize: MainAxisSize.max, CrossAxisAlignment crossAxisAlignment: CrossAxisAlignment.center, TextBaseline textBaseline, List<Widget> children: const [] })

Creates a vertical array of children.

The direction, mainAxisAlignment, mainAxisSize, and crossAxisAlignment arguments must not be null. If crossAxisAlignment is CrossAxisAlignment.baseline, then textBaseline must not be null.

Source 

Column({
  Key key,
  MainAxisAlignment mainAxisAlignment: MainAxisAlignment.start,
  MainAxisSize mainAxisSize: MainAxisSize.max,
  CrossAxisAlignment crossAxisAlignment: CrossAxisAlignment.center,
  TextBaseline textBaseline,
  List<Widget> children: const <Widget>[],
}) : super(
  children: children,
  key: key,
  direction: Axis.vertical,
  mainAxisAlignment: mainAxisAlignment,
  mainAxisSize: mainAxisSize,
  crossAxisAlignment: crossAxisAlignment,
  textBaseline: textBaseline
);