ancestors property Null safety
An Iterable over the ancestors of this node.
Iterates the ancestors of this node starting at the parent and iterating over successively more remote ancestors of this node, ending at the root FocusScopeNode (FocusManager.rootScope).
Implementation
Iterable<FocusNode> get ancestors {
if (_ancestors == null) {
final List<FocusNode> result = <FocusNode>[];
FocusNode? parent = _parent;
while (parent != null) {
result.add(parent);
parent = parent._parent;
}
_ancestors = result;
}
return _ancestors!;
}