dropChild method

  1. @override
void dropChild(
  1. RenderObject child
)
override

Called by subclasses when they decide a render object is no longer a child.

Only for use by subclasses when changing their child lists. Calling this in other cases will lead to an inconsistent tree and probably cause crashes.

Implementation

@override
void dropChild(RenderObject child) {
  _firstSortedChild = null;
  _lastSortedChild = null;
  super.dropChild(child);
}