After expand and collapse a cell I have an issue with cellForItem: for its child cells. After cell is collapsed without collapseChildren option, child cells are not invalidated, and indexPathForItem: returns valid indexPath, so cellForItem: returns incorrect cell (one from below).
This caused a lot of unexpected behavior.
This is the simplest solution: still assingsetExpanded:NO only in case it is expected, but invalidate all hierarchy of children every time.
After expand and collapse a cell I have an issue with
cellForItem:for its child cells. After cell is collapsed without collapseChildren option, child cells are not invalidated, andindexPathForItem:returns valid indexPath, socellForItem:returns incorrect cell (one from below). This caused a lot of unexpected behavior.This is the simplest solution: still assing
setExpanded:NOonly in case it is expected, but invalidate all hierarchy of children every time.