layerListOf method Null safety
- Finder finder
Find all layers that are children of the provided finder
.
The finder
must match exactly one element.
Implementation
Iterable<Layer> layerListOf(Finder finder) {
TestAsyncUtils.guardSync();
final Element element = finder.evaluate().single;
final RenderObject object = element.renderObject!;
RenderObject current = object;
while (current.debugLayer == null) {
current = current.parent! as RenderObject;
}
final ContainerLayer layer = current.debugLayer!;
return _walkLayers(layer);
}