adoptChild method Null safety
- covariant Layer child
override
Mark the given node as being a child of this node.
Subclasses should call this function when they acquire a new child.
Implementation
@override
void adoptChild(Layer child) {
assert(!_debugMutationsLocked);
if (!alwaysNeedsAddToScene) {
markNeedsAddToScene();
}
if (child._compositionCallbackCount != 0) {
_updateSubtreeCompositionObserverCount(child._compositionCallbackCount);
}
super.adoptChild(child);
}