Row constructor

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

Creates a horizontal array of children.

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

The textDirection argument defaults to the ambient Directionality, if any. If there is no ambient directionality, and a text direction is going to be necessary to determine the layout order (which is always the case unless the row has no children or only one child) or to disambiguate start or end values for the mainAxisAlignment, the textDirection must not be null.

Implementation 

Row({
  Key key,
  MainAxisAlignment mainAxisAlignment = MainAxisAlignment.start,
  MainAxisSize mainAxisSize = MainAxisSize.max,
  CrossAxisAlignment crossAxisAlignment = CrossAxisAlignment.center,
  TextDirection textDirection,
  VerticalDirection verticalDirection = VerticalDirection.down,
  TextBaseline textBaseline,
  List<Widget> children = const <Widget>[],
}) : super(
  children: children,
  key: key,
  direction: Axis.horizontal,
  mainAxisAlignment: mainAxisAlignment,
  mainAxisSize: mainAxisSize,
  crossAxisAlignment: crossAxisAlignment,
  textDirection: textDirection,
  verticalDirection: verticalDirection,
  textBaseline: textBaseline,
);