getBorderRadius method

Implementation

BorderRadiusGeometry? getBorderRadius() {
  if (this is BoxDecoration) {
    return (this as BoxDecoration).borderRadius;
  } else if (this is ShapeDecoration) {
    final shape = (this as ShapeDecoration).shape;
    if (shape is RoundedRectangleBorder) {
      return shape.borderRadius;
    } else if (shape is CircleBorder) {
      return BorderRadius.circular(100);
    }
  }
  return null;
}