title: How to set UIScrollView's background image as a stretchable image?
body: <p>I want to set UIScrollView's background image as a stretchable image. I tried:</p>
  
  <pre><code>UIImage* backgroundImage =[[UIImage imageNamed:@"background"]
                                 resizableImageWithCapInsets:UIEdgeInsetsMake(100, 0, 0, 0) ];
  self.scrollView.backgroundColor = [UIColor colorWithPatternImage:backgroundImage];
  </code></pre>
  
  <p>But it is not stretching.</p>
  
  <p>What can I do?</p>