title: ios - UICollectionView change default offset when horizontal paging
body: <p>I'm trying to use UICollectionView to display the view to the left and right of the current view that is centered in the screen.</p>
  
  <p>I have this displaying properly but the horizontal paging does not center on the subsequent views because it defaults to the width of the frame, which is 320.0.</p>
  
  <p>Where is UICollectionView calculating the default offset value it uses when clipping to the next pages?</p>
  
  <p>I would like to change this value.  Is there a better way to do this?  Essentially I am trying to recreate the experience being used in the search results for the app store on the iphone.</p>