detach method
- @override
override
Mark this node as detached.
Typically called only from the parent's detach, and by the owner to mark the root of a tree as detached.
Subclasses with children should override this method to first call their inherited detach method, and then detach all their children.
Implementation
@override
void detach() {
super.detach();
if (_rowDecorationPainters != null) {
for (BoxPainter painter in _rowDecorationPainters)
painter?.dispose();
_rowDecorationPainters = null;
}
for (RenderBox child in _children)
child?.detach();
}