litho-core/com.facebook.litho/AttachDetachHandler/onAttached

onAttached

@UiThread
fun onAttached(attachables: List<Attachable>?)

Marks the given Attachables as attached, invoking attach if they weren't already attached. Any Attachables that were attached and are no longer attached will be detached. Note that identity is determined by Attachable#getUniqueId().