title: View got hidden below UINavigationBar iOS 7
body: <p>Earlier, I was using iOS 6.1 for my project. Recently I have switched to iOS 7. For, a lot of changes I knew, I updated my code.. But I have observed a strange behavior. My view on every screen gets hidden below navigation bar. Repositioning view solves the problem for iOS7, but creates problems for older iOS versions.</p>
  
  <p>Can anyone explain me, what is the reason and why does it happen?? What has been changed in iOS 7 that's causing this problem??</p>
  
  <p>Any help would be appreciated.. </p>