title: UIView full screen
body: <p>I am creating a UIview using the following code:</p>
  
  <pre><code>UIview* baseView = [[UIview alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
  //self.view = baseView;
  [self.view addSubview:baseView];
  [baseView setBackgroundColor:[UIColor blackColor]];
  baseView.userInteractionEnabled = YES;
  baseView.alpha = 0.7;
  </code></pre>
  
  <p>The only problem is that even if I am using the mainScreen option to set it full screen, it appears full screen except for a 5cm line at the top of the UIWindow. Is there any reason for this?</p>