Edit parent view controller's title from child

Question

I have app with UICollectionViews in UIPageViewController based on this tutorial for UIPageViewController, now I've embedded main view controller in navigation controller, and I want to change title of nav bar dynamically when in detail view, but how can I access it?

At first I've tried to embed in navigation controller Page View Controller, but nav bar wasn't displayed.

storyboard

edit: I've found out, that I can add navigation item to Time Snap Detail View Controller and set its title here, even though it's not visible in storyboard.

But how can I edit title in navigation bar, when I'm in Page View Controller?(In this case, on stack of the navigation controller is Main View Controller, which has Page View Controller as child view controller).

have you tried `self.title = @"My Title"` from inside your page view controller? — TotoroTotoro, Nov 25 '13 at 21:32
hi, it doesn't work, in parent view controller, it's added like this: `[self addChildViewController:self.pageController]; [[self view] addSubview:[self.pageController view]]; [self.pageController didMoveToParentViewController:self];` — Adam Bardon, Nov 25 '13 at 21:45
this doesn't work either, self.parentViewController is read-only — Adam Bardon, Nov 25 '13 at 21:50
You're not assigning anything to `self.parentViewController`, just changing the title. That doesn't work either? — TotoroTotoro, Nov 25 '13 at 21:50
no, I've tried even `[self.parentViewController setTitle:@"sdfsdf"];` with same result — Adam Bardon, Nov 25 '13 at 21:53
check my [latter question](http://stackoverflow.com/questions/21443555/uipageviewcontroller-within-navigationcontroller), I haven't tried it though because I used different UI — Adam Bardon, Mar 31 '15 at 18:25

score 1 · Answer 1 · edited Sep 17 '20 at 08:23

1

I tried this, and it's ok:

childVC.parentViewController.navigationItem.title = @"abc";

edited Sep 17 '20 at 08:23

Windle

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answered Sep 16 '20 at 03:44

Johny Li

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score 1 · Answer 2 · answered Jun 19 '21 at 19:35

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The parent in view controller is not working anymore. Looks like the only way is to save the parent in this child view controller's method and set it's title:

override func didMove(toParent: UIViewController?)

answered Jun 19 '21 at 19:35

juissi

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score 0 · Answer 3 · answered Mar 24 '14 at 11:07

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try this. it's working for me in almost same scenario

    self.navigationController.parentViewController.navigationItem.title = @"sdfsdf.";

answered Mar 24 '14 at 11:07

KennyVB

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Edit parent view controller's title from child

3 Answers3