title: UICollectionView horizontal paging with 3 items
body: <p>I need to show 3 items in a UICollectionView, with paging enabled like this</p>
  
  <p><img src="https://i.stack.imgur.com/RYS5l.png" alt="enter image description here"></p>
  
  <p>but I am getting like this 
  <img src="https://i.stack.imgur.com/mrk86.png" alt="enter image description here"></p>
  
  <p>I have made custom flow, plus paging is enabled but not able to get what i need. How can i achieve this or which delegate should i look into, or direct me to some link from where i can get help for this scenario.  </p>
  
  <pre><code>- (void)awakeFromNib
  {
      self.itemSize = CGSizeMake(480, 626);
      self.minimumInteritemSpacing = 112;
      self.minimumLineSpacing = 112;
      self.scrollDirection = UICollectionViewScrollDirectionHorizontal;
      self.sectionInset = UIEdgeInsetsMake(0, 272, 0, 272);
  }
  </code></pre>