build method

@override Widget build(BuildContext context)

Override this method to build widgets that depend on the state of the listenable (e.g., the current value of the animation).

Implementation

@override
Widget build(BuildContext context) {
  final alignmentDirect = axis == Axis.vertical
      ? AlignmentDirectional(-1.0, axisAlignment)
      : AlignmentDirectional(axisAlignment, -1.0);
  return ClipRect(
    child: Align(
      alignment: alignment ?? alignmentDirect,
      heightFactor:
          axis == Axis.vertical ? math.max(sizeFactor.value, 0.0) : null,
      widthFactor:
          axis == Axis.horizontal ? math.max(sizeFactor.value, 0.0) : null,
      child: child,
    ),
  );
}