Question

I’ve a UISplitViewControllerDelegate, which is receiving the UIBarButtonItem and UIPopoverController when the UISplitViewController in rotated to landscape orientation. The following delegating method is implemented:

- (void)splitViewController:(UISplitViewController *)svc
     willHideViewController:(UIViewController *)aViewController
          withBarButtonItem:(UIBarButtonItem *)barButtonItem
       forPopoverController:(UIPopoverController *)pc
{
    barButtonItem.title = self.title;
    myViewController.splitViewBarButtonItem = barButtonItem;
    myViewController.splitViewPopoverController = pc;
}

When myViewController is setting the barButtonItem it is placed in the leftBarButtonItem in the view’s navigation bar.
My problem is, that myViewController has another popover, which should be dismissed, when the leftBarButtonItem is tapped. It is not a problem to dismiss the other popover, but the problem is, that I do not know, when the barButtonItem is clicked.

How can I accomplish this?

Answer 1

I found a solution using the splitViewController:popoverController:willPresentViewController: method.

- (void)splitViewController:(UISplitViewController *)svc
          popoverController:(UIPopoverController *)pc
  willPresentViewController:(UIViewController *)aViewController {
    [myViewController dismissPopovers];
}

The dismissPopovers method in myViewController is implemented to hide popovers if they are presented.