code: public void setTraversalBefore(AccessibilityNodeInfo info) {
      if (this.traversalBefore != null) {
        this.traversalBefore.recycle();
      }
      
      this.traversalBefore = obtain(info);
    }
docs: Sets the view before whose node this one should be visited during traversal.
  
  This may be useful for configuring traversal order in tests before the corresponding
  views have been inflated.
  
  @param info The view providing the preceding node.
  @see #getTraversalBefore()