render method

Implementation

@override
Widget render(BuildContext context) {
  var reversed = buildReversed();
  var axisDirection = widget.vertical
      ? (reversed ? AxisDirection.up : AxisDirection.down)
      : (reversed ? AxisDirection.left : AxisDirection.right);
  var scrollable = buildScrollable(axisDirection);
  return LayoutBuilder(builder: (outContext, bodyConstraints) {
    scrollController.contentWidth =
        bodyConstraints.hasBoundedWidth ? bodyConstraints.maxWidth : null;

    Widget child;
    if (widget.shrinkWrap == true) {
      child = scrollable;
    } else if (bodyConstraints.hasBoundedHeight) {
      child = SizedBox(
        height: bodyConstraints.maxHeight,
        width:
            bodyConstraints.hasBoundedWidth ? bodyConstraints.maxWidth : null,
        child: scrollable,
      );
    } else if (!widget.vertical) {
      child = SizedBox(
        height: scrollController.firstChildSize?.height ?? 0,
        width:
            bodyConstraints.hasBoundedWidth ? bodyConstraints.maxWidth : null,
        child: scrollable,
      );
    } else {
      child = scrollable;
    }
    return child;
  });
}