How to replace the deprecated method splitViewController:willHideViewController:withBarButtonItem:forPopoverController:

Question

My standard implementation for this delegate method is the following. I just initialize the navigation button and save locally the button and the popover.

- (void) splitViewController: (UISplitViewController *) splitController
      willHideViewController: (UIViewController *)      viewController
           withBarButtonItem: (UIBarButtonItem *)       barButtonItem
        forPopoverController: (UIPopoverController *)   popoverController
{
    // Set the button to open the PopOver
    barButtonItem.title = viewController.title;
    [self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];

    // Save the ref to the default left navigation button
    _masterButton = barButtonItem;

    // Save the ref to the PopOver
    _masterPopOver = popoverController;
}

From iOS 8 this method is deprecated and the Apple documentation says:

Implement the splitViewController:willChangeToDisplayMode: method instead.

But the arguments of the new method has nothing to do with the deprecated method! I guess I have to create a button and a popover myself?

Does somebody already made this re-coding to implement the current popup behaviour?

Thank you for your help

Have you found any answers to this issue? Looking for the same thing! — lionserdar, Oct 08 '14 at 15:55
Not yet. I guess I will have to do the work by myself. It is not very urgent for me but as soon as I do the work, I will put it here — PatrickV, Oct 10 '14 at 15:19

score 12 · Answer 1 · answered Oct 21 '14 at 05:42

12

Take a look at displayModeButtonItem. It is very similar to barButtonItem from the deprecated method.

You can refactor your example into using the new splitViewController:willChangeToDisplayMode: method in the following way:

- (void)splitViewController:(UISplitViewController *)svc
    willChangeToDisplayMode:(UISplitViewControllerDisplayMode)displayMode {

    if (displayMode == UISplitViewControllerDisplayModePrimaryHidden) {
        self.navigationItem.leftBarButtonItem = svc.displayModeButtonItem;
    }
}

answered Oct 21 '14 at 05:42

Alex Tamoykin

175
5

1

But there is no `leftBarButtonItem` defined. How to do then? – Cihad Turhan Oct 24 '14 at 14:02
Thanks - Code is complete, just copy and past into your detail view. – Jim Geldermann Dec 13 '15 at 13:27

score 1 · Answer 2 · answered Dec 31 '15 at 15:25

This is an extension to Alexander's answer. To cover Cihad's comment: the last line of code creates the leftBarButtonItem and makes it the blue "<" button that will open the master viewController.

I just commented out willHideViewController and willShowViewController from my detail viewController and cut and pasted Alexander's code. Worked first time.

Then I discovered that if I started the app in portrait it did not work until I went landscape and back to portrait. Obviously the method is not called until a change of orientation.

So I added this code in my viewDidLoad method of my detail viewController and it worked fine:

        //Set up the splitview controller
    if (self.splitViewController.displayMode == UISplitViewControllerDisplayModePrimaryHidden) {
        self.navigationItem.leftBarButtonItem = self.splitViewController.displayModeButtonItem;}

splitViewController is a property of your detail viewController that should be there for you to use.

How to replace the deprecated method splitViewController:willHideViewController:withBarButtonItem:forPopoverController:

2 Answers2