ShrinkWrappingViewport constructor Null safety

ShrinkWrappingViewport(
  1. {Key? key,
  2. AxisDirection axisDirection = AxisDirection.down,
  3. AxisDirection? crossAxisDirection,
  4. required ViewportOffset offset,
  5. Clip clipBehavior = Clip.hardEdge,
  6. List<Widget> slivers = const <Widget>[]}
)

Creates a widget that is bigger on the inside and shrink wraps its children in the main axis.

The viewport listens to the offset, which means you do not need to rebuild this widget when the offset changes.

The offset argument must not be null.

Implementation

ShrinkWrappingViewport({
  super.key,
  this.axisDirection = AxisDirection.down,
  this.crossAxisDirection,
  required this.offset,
  this.clipBehavior = Clip.hardEdge,
  List<Widget> slivers = const <Widget>[],
}) : assert(offset != null),
     super(children: slivers);