title: Way to present a UIImagePicker inside a UIViewController in a PopOver
body: <p>I am trying to display a UIImagePickerController inside a UIViewController via PopOver.
    I have added a PopOver via :</p>
  
  <pre><code>overlayTableViewCtrl = [[OverlayTableViewController alloc] initWithStyle:UITableViewStylePlain];
      UINavigationController *navCtrl=[[UINavigationController alloc] initWithRootViewController:selectedPunchTableViewCtrl];
      popOverViewController= [[UIPopoverController alloc] initWithContentViewController:navCtrl];
  
   [popOverViewController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];
  </code></pre>
  
  <p>I am then adding a UIImagePickerController on a UIViewController via </p>
  
  <pre><code>[self presentViewController:cameraPickerCtrl animated:YES completion:nil];
  </code></pre>
  
  <p>I have set a content size for my ViewCtrl :</p>
  
  <pre><code>self.preferredContentSize = CGSizeMake(500, 400);
  </code></pre>
  
  <p>I see the camera inside my ViewCtrl by <code>cameraPickerCtrl.modalPresentationStyle=UIModalPresentationCurrentContext;</code>
   <br>but it appears with a black overlay . I also added a cameraViewTransform but it doesn't help for a custom size of UIViewController taking UIScreen bounds for aspect ratio.</p>
  
  <p>Have anyone tried with a UIImagePickerController inside a custom sized UIViewController in a navigationController hierarchy? Are there any good examples for adding on ipad without Storyboard</p>