title: Actionsheet popover background truns to black before popover gets dismissed in ios 9
body: <p>Using following:</p>
  
  <pre><code>  [self.actionSheetPostOptions showFromBarButtonItem:self.navigationItem.rightBarButtonItem animated:YES];
  </code></pre>
  
  <p>also tried </p>
  
  <pre><code>UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil
                                                                         message:nil
                                                                  preferredStyle:UIAlertControllerStyleActionSheet];
  
  UIAlertAction *actnCamera = [UIAlertAction actionWithTitle:@"Camera" style:UIAlertActionStyleDefault
                                                      handler:^(UIAlertAction * action) {
                                                   }];
  
  UIAlertAction *actnLibrary = [UIAlertAction actionWithTitle:@"Library" style:UIAlertActionStyleDefault
                                                   handler:^(UIAlertAction * action) {
                                                   }];
  
  [alertController addAction:actnLibrary];
  [alertController addAction:actnCamera];
  [alertController setModalPresentationStyle:UIModalPresentationPopover];
  UIPopoverPresentationController *popPresenter = [alertController
                                                               popoverPresentationController];
  popPresenter.barButtonItem = self.navigationItem.rightBarButtonItem;
  [self presentViewController:alertController animated:YES completion:nil];
  </code></pre>
  
  <p>but still getting same issue while dismissing.</p>
  
  <p>Update <strong>iOS 11</strong>: This issue no longer exists in iOS 11.</p>