performLayout method

  1. @override
Size performLayout(
  1. BoxConstraints constraints
)
override

Hook for subclasses to perform layout within the given constraints.

Implementation

@override
Size performLayout(BoxConstraints constraints) {
  rebuild();
  if (_activeChildElement != null) {
    return _activeChildElement!.layout(constraints);
  }
  return constraints.constrain(Size.zero);
}