nodes

Every node a service could reach from the root, in the order of the node tree the platform hands a service: a View's children as View.addChildrenForAccessibility lists them, with unimportant Views flattened out and siblings sorted by position on screen, and a virtual node's children in id order. That is not quite reading order: a service also applies the traversalBefore/traversalAfter hints Style.focusOrder sets, and this does not.

Only what is shown is listed, so a subtree that is invisible or not attached is left out.