iOS - Storyboard - Delegate for pop over - ios

Question

I'm using storyboard in my ipad application and successfully able to do transitions, use segues etc.
Currently I am showing pop over view controller on click of a button. I want to detect when the pop over dismisses.
How can I do it?

Answer 1

Here is what I did:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"popover"])
{
UIStoryboardPopoverSegue *pop = (UIStoryboardPopoverSegue*)segue;
pop.popoverController.delegate = self;
}
}

Answer 2

UIPopoverController
Now with my revelation that you're talking about a UIPopoverController, here are the steps:
Setup the UIPopoverController with an appropriate delegate (I'm assuming the "sender" view controller)
Have your "sender" conform to the UIPopoverControllerDelegate
Implement the – popoverControllerDidDismissPopover: message and have any detection logic here
Implement - prepareForSegue:sender: and use the segue's destinationController to both get a reference and set the delegate, something like below:
((MyViewController*)segue.destinationController).delegate = self;
Modal View Controller
Add a delegate to the view controller that is being presented
Name your segue if you haven't already
Have your base view controller implement - prepareForSegue:sender: (refer to the UIViewController documentation)
Assign the sending view controller as the modal view controller's delegate in prepareForSegue:sender:
Call a desired method on the delegate immediately before or after you call dismissModalViewControllerAnimated:
That is how I would approach this. I would also recommend having a formal protocol to conform your sending view controller with.

Answer 3

Create a segue in view controller:
#property (strong, nonatomic) UIStoryboardPopoverSegue* popSegue;
In XIB, create an identifier called "popover" for the view.
In Interface, write the following code:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if( [[segue identifier] isEqualToString:#"popover"] )
{
//[[segue destinationViewController] setDelegate:self];
NSLog(#"%#",[[segue destinationViewController] viewControllers]);
self.popSegue = (UIStoryboardPopoverSegue*)segue;
.
.
.
}
Write the following code to dismiss the pop over by coding:
[self.popSegue.popoverController dismissPopoverAnimated:YES];

Answer 4

Since UIStoryboardPopoverSegueis deprecated in iOS 9, you can use a UIStoryboardPopoverPresentationSegue.
Then in prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?)you can set the delegate like this:
Swift:
if let identifier = segue.identifier where identifier == "showPopover" {
let destVC = segue.destinationViewController as! UIViewController
destVC.popoverPresentationController?.delegate = self
}

Answer 5

An Objective-C code for the question is below.
if ([segue.identifier isEqualToString:#"home_login"])
{
UIViewController *dest = segue.destinationViewController;
dest.popoverPresentationController.delegate = self;
}
- (BOOL) popoverPresentationControllerShouldDismissPopover:(UIPopoverPresentationController *)popoverPresentationController
{
return NO;
}