title: Unable to scroll in scroll view
body: <p>This is my view layout in storybaord:</p>
  
  <p><img src="https://i.stack.imgur.com/Ocmtl.png" alt="enter image description here"></p>
  
  <p>My Scroll view frame is set to be <code>320x568</code>, and in my view controller I have set </p>
  
  <pre><code>self.scrollView.scrollEnabled = YES;
  [self.scrollView setContentSize:CGSizeMake(320,1000)];//obviously content is larger than frame
  </code></pre>
  
  <p>However, the scroll still doesn't work. So I enabled vertical bounce, and found that every time when I drag down it just bounces back to original position. Can anyone help me fix this issue? </p>