title: Fullscreen iPad UIPopoverController
body: <p>I have an iPad app which displays a <code>UIImagePicker</code> through a <code>UIPopoverController</code>.
  I would like to make the popovercontroller fullscreen (or at least as big as possible).</p>
  
  <p>I'm using the <code>presentPopoverFromRect</code> method with a new <code>CGRect</code> which I have set to various widths and heights with no result. The source of the imagepicker is <code>UIImagePickerControllerSourceTypePhotoLibrary</code>. </p>
  
  <pre><code>UIPopoverController* popoverController = [[UIPopoverController alloc] initWithContentViewController:photoPicker];
  popoverController.delegate = self;
  popoverController presentPopoverFromRect:CGRectMake(0, 0, 2500, 2500) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
  </code></pre>
  
  <p>Can I even make this fullscreen? What about sourcetype <code>UIImagePickerControllerSourceTypeCamera</code>?</p>