The rebound problem of using Scrollview in cocos Creator

The official document states Elastic Whether it rebounds , But this specific explanation is whether to allow scrolling content beyond the boundary , And rebound after stopping , If set to false You can't trigger the touch roll effect .

I have changed content Size , If content The size can contain all item, Will not rebound . as follows , Set up resize mode by container Just fine , But this content Inside item You cannot zoom