Router.java 文件源码

/**
 * Detaches the {@param childFactory} from the current {@link Interactor}. NOTE: No consumers of
 * this API should ever keep a reference to the detached child router, leak canary will enforce
 * that it gets garbage collected.
 *
 * <p>If you need to keep references to previous routers, use {@link RouterNavigator}.
 *
 * @param childRouter the {@link Router} to be detached.
 */
@MainThread
protected void detachChild(Router childRouter) {
  children.remove(childRouter);

  Interactor interactor = childRouter.getInteractor();
  ribRefWatcher.watchDeletedObject(interactor);
  ribRefWatcher.logBreadcrumb(
      "DETACHED", childRouter.getClass().getSimpleName(), this.getClass().getSimpleName());
  if (savedInstanceState != null) {
    Bundle childrenBundles =
        checkNotNull(savedInstanceState.getBundleExtra(KEY_CHILD_ROUTERS));
    childrenBundles.putBundleExtra(childRouter.tag, null);
  }

  childRouter.dispatchDetach();
}