title: iOS 7 - navigation bar item text color
body: <p>I'm having an issue with text color of navigation bar item on iOS7.</p>
  
  <p>All things are fine until I present a viewcontroller, from this time, all navigation bar items  text color are Grey. Do you have any experience with this issue?</p>
  
  <p>The codes used to present VC:</p>
  
  <pre><code>[passcodePopover presentPopoverFromRect:CGRectMake([UIScreen mainScreen].bounds.size.width/2 ,currentWindow.frame.size.height/2,1,1)
                                       inView:currentWindow
                     permittedArrowDirections:0 animated:NO];[passcodePopover presentPopoverFromRect:CGRectMake([UIScreen mainScreen].bounds.size.width/2 ,currentWindow.frame.size.height/2,1,1)
                                       inView:currentWindow
                     permittedArrowDirections:0 animated:NO];
  </code></pre>