In a storyboard I have a root view controller with a button which triggers a 'Present as Popover' segue to a UINavigationController containing a UITableViewController. I want the nav controller to be present on both iPhone and iPad.
On an iPad, this works great in a popover.
On an iPhone, I get the modal presentation, so now I need an additional bar button item to dismiss the modal view. From watching the WWDC videos, I've attempted the following in the root view controller:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
UIViewController *vc = segue.destinationViewController;
vc.popoverPresentationController.delegate = self;
}
- (void)dismissPopover {
[self dismissViewControllerAnimated:YES completion:nil];
}
- (UIViewController *)presentationController:(UIPresentationController *)controller viewControllerForAdaptivePresentationStyle:(UIModalPresentationStyle)style {
UINavigationController *nvc = (UINavigationController *)controller.presentedViewController;
UIBarButtonItem *bbi = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(dismissPopover)];
nvc.topViewController.navigationItem.leftBarButtonItem = bbi;
return nvc;
}
I understand the -presentationController:viewControllerForAdaptivePresentationStyle:
method should only get called when the UI is adaptive i.e. modal, however it doesn't get called at all, even when running as a modal on iPhone.
Best Answer
Here's the Swift version of Nick's correct answer for those who want a quick cut and paste.
Note: This is to create a popover on your iPad but a modal sheet with a close button on your iPhone.
In Xcode 6.3 storyboard, you hook up a view controller and designate the segue as a "Present as Popover"
The below code should go in the view controller that segues to the popover, not in the popover itself:
First you set up the popover delegate:
Then you add the delegate extension and create the navigation controller / close button on the fly: