title: How to hide tab bar when dragging like Safari app?
body: <p>I want to know how to implement an animation which hiding the tab bar when dragging downward, like Safari app on iOS 7. Any information from you will be appreciated.</p>
  
  <p>Similar question:  <a href="https://stackoverflow.com/questions/21929220/show-hide-uitoolbar-match-finger-movement-precisely-as-in-for-example-ios7-s">Show/hide UIToolbar, &quot;match finger movement&quot;, precisely as in for example iOS7 Safari</a>.</p>