title: Hiding tabBar showing black bar in Ios7
body: <p>I am using this code to hide the TabBar:   </p>
  
  <pre><code>self.tabBarController.tabBar.hidden=YES;
  </code></pre>
  
  <p>I am hiding tabBarController in my project.but it showing black bar in bottom of the view in Ios7.When i go back to the same view it is looking good.any help will be appreciated.</p>