iOS 8 presentationController determine if really is popover

Question

I\'m using the new adaptive \"Present As Popover\" capability of iOS 8. I wired up a simple segue in the StoryBoard to do the presentation. It works great on an iPhone 6 P

Answer 1

Solution that works with multitasking

Assign the presenting controller as the popover's delegate

...
controller.popoverPresentationController.delegate = controller;
[self presentViewController:controller animated:YES completion:nil];

Then, in the controller, implement the delegate methods:

- (void)presentationController:(UIPresentationController *)presentationController willPresentWithAdaptiveStyle:(UIModalPresentationStyle)style transitionCoordinator:(id)transitionCoordinator
{
    if (style != UIModalPresentationNone)
    {
        // Exited popover mode
        self.navigationItem.leftBarButtonItem = button;
    }
}

- (void)prepareForPopoverPresentation:(UIPopoverPresentationController *)popoverPresentationController
{
    // Entered popover mode
    self.navigationItem.leftBarButtonItem = nil;
}