visitChildren method Null safety

  1. @override
void visitChildren(
  1. RenderObjectVisitor visitor
)
override

Calls visitor for each immediate child of this render object.

Override in subclasses with children and call the visitor for each child.

Implementation

@override
void visitChildren(RenderObjectVisitor visitor) {
  ChildType? child = _firstChild;
  while (child != null) {
    visitor(child);
    final ParentDataType childParentData = child.parentData! as ParentDataType;
    child = childParentData.nextSibling;
  }
}