title: UIScrollView within UICollectionViewCell Not Working
body: <p>I have a <code>UICollectionView</code> with a custom <code>UICollectionViewCell</code>. The <code>UICollectionView</code> scrolls horizontally, with each cell occupying all of the visible screen.</p>
  
  <p>The <code>UICollectionViewCell</code> has a <code>UIView</code> subview, which in turn has a <code>UIScrollView</code> subview.</p>
  
  <p>The <code>UIScrollView</code> is intended to scroll vertically, but it's not scrolling at all. I've tried setting the scroll view's <code>contentSize</code> with no success.</p>
  
  <p>I suspect that the <code>UIScrollView</code> is not getting any touch events rather than it being a size issue.</p>
  
  <p>Any suggestions?</p>
  
  <p>EDIT >></p>
  
  <p>I'm now sure it's an event problem rather than anything specific to the <code>UIScrollView</code>.</p>
  
  <p>I've now overridden the <code>pointInside:</code> method in the <code>UIView</code> in the <code>UICollectionViewCell</code> and can see that it now returns false every time I tap on it. In that case you'd think that the tap event would propagate to the next subview , but the <code>UIView</code> still isn't getting events. I've tried adding a <code>UIGestureRecognizer</code> to the <code>UIView</code> but it never registers a tap. </p>
  
  <p>Could there be anything here intercepting the events that I'm not aware of?</p>