Old navigationItem remains when leftBarButtonItem is set without title and sloppy-swiper cancelled

[inamiy]

Hi!

This could be an UIKit bug (that is hard to fix), but I noticed an awkward navigationItem behavior as I wrote reproducing code below:

[Example] Reproduce navigationItem bug when leftBarButtonItem is set without title and sloppy-swiper cancelled

Step to reproduce

1. Set left & right barButtonItems WITHOUT title.
2. Push a new ViewController.
3. Sloppy-swipe-back, but cancel it (don't pop).
4. Sloppy-swipe-back to pop.
5. RootViewController's navigationItem remains on navigationBar.

NOTE

Bug won't reproduce if...

1. leftBarButtonItem is not set, or
2. title is set

---

Is there any workaround or fixes for this problem? (One idea might be to add a dummy transparent text 😵)
Thanks!

[inamiy]

OK, I just solved it by adding empty titleView as follows:

if (self.navigationItem.title == nil && self.navigationItem.titleView == nil) {
    self.navigationItem.titleView = [[UIView alloc] init];
}

[fastred]

Thanks for posting a workaround and a sample code! I think this may be a bug in SloppySwiper. I haven't used it with a custom leftBarButtonItem.

I'd investigate the logic in https://github.com/fastred/SloppySwiper/blob/master/Classes/SloppySwiper.m#L82-L107. There's also this separate issue (when not using SloppySwiper) that may be somehow related: http://holko.pl/ios/2014/04/06/interactive-pop-gesture/