title: How to add UIPanGestureRecognizer to UIScrollView subviews
body: <p>I am adding subviews to a <code>UIScrollView</code> and then I add <code>UIPanGestureRecognizer</code> to these subviews. Everything works fine but now after adding <code>UIPanGestureRecognizer</code> to subviews of the scroll view, scrolling is not possible. </p>
  
  <p>What can be the possible solution to this issue?</p>