If I remember correctly from doing something like this in the path, the important thing in the below code is you are providing a custom image for the nav bar to draw as its background, instead of doing a blur effect. The image you supply happens to be empty so nothing is drawn in the end, and you get the effect you want.
Mike. P.S. 2 minute builds sound insane though. The entirety of Sketch does incremental builds considerably faster than that. Go look at your build log, try to figure out what’s swallowing time. > On 28 Jan 2022, at 21:13, Alex Zavatone via Cocoa-dev > <cocoa-dev@lists.apple.com> wrote: > > Hi David. I hate to tell you, your code doesn’t work. > > The old UINavigationBar background that I’m trying to remove is still there > when I use your code over what I stumbled across. > > Something in the code below does remove the background image. > > self.navigationController!.navigationBar.isTranslucent = false > self.navigationController!.navigationBar.titleTextAttributes = > [.foregroundColor: UIColor.white] > > let navBar = self.navigationController!.navigationBar > let standardAppearance = UINavigationBarAppearance() > standardAppearance.configureWithOpaqueBackground() > standardAppearance.backgroundImage = UIImage() > > navBar.standardAppearance = standardAppearance > navBar.scrollEdgeAppearance = standardAppearance > > self.navigationController?.navigationBar.backgroundImage(for: .default) > navigationController?.navigationBar.setBackgroundImage(UIImage(), for: > .default) > > Sadly, each build takes 2 minutes (thanks Swift!) even if I’m only changing 1 > line, so it’s not time effective to figure out exactly what is. > > Fun times. > > Cheers, > Alex Zavatone > > >> On Jan 28, 2022, at 2:02 PM, David Duncan <david.dun...@apple.com> wrote: >> >> >> >>> On Jan 28, 2022, at 11:50 AM, Alex Zavatone <z...@mac.com >>> <mailto:z...@mac.com>> wrote: >>> >>> Awesome. Thank you, David. >>> >>> >>> I stumbled across this too while going through Apple documentation. What’s >>> scary is that I have no idea why it works. >>> >>> self.navigationController!.navigationBar.barStyle = .default >>> self.navigationController!.navigationBar.isTranslucent = false >>> self.navigationController!.navigationBar.titleTextAttributes = >>> [.foregroundColor: UIColor.white] >>> self.navigationController?.navigationBar.backgroundImage(for: .default) >>> navigationController?.navigationBar.setBackgroundImage(UIImage(), >>> for: .default) >> >> This stuff is pre-iOS 13 appearance customization. Using the new stuff will >> disable it. >> >>> >>> let navBar = self.navigationController!.navigationBar >>> let standardAppearance = UINavigationBarAppearance() >>> standardAppearance.configureWithOpaqueBackground() >>> standardAppearance.backgroundImage = UIImage() >>> >>> navBar.standardAppearance = standardAppearance >>> navBar.scrollEdgeAppearance = standardAppearance >> >> With iOS 13 the navigation bar now has multiple appearance states. The >> scrollEdgeAppearance is when your bar is at the edge of a scroll view (top >> for a navigation bar, bottom for tab & toolbar). This configures the bar to >> use the same appearance state (in this case, a solid color background, using >> UIColor.systemBackgroundColor). In context the setting of backgroundImage >> doesn’t do anything (it defaults to nil and empty images have identical >> behavior). >> >> By setting standardAppearance == scrollEdgeAppearance it in turn disables >> the “bar becomes transparent at the top” behavior introduced for large >> titles in iOS 13 and extended to all bar in iOS 15. >> >>> >>> >>> Thanks again David. You’re on my Christmas list. >>> >>> Alex Zavatone >>> >>>> On Jan 28, 2022, at 1:30 PM, David Duncan <david.dun...@apple.com >>>> <mailto:david.dun...@apple.com>> wrote: >>>> >>>> UINavigationBarAppearance *appearance = [UINavigationBarAppearance new]; >>>> [appearance configureWithTransparentBackground]; >>>> navigationItem.standardAppearance = appearance; >>>> >>>> Thats the simplest per-item way to do it. This does imply you adopt the >>>> new appearance APIs introduced in iOS 13. >>>> >>>>> On Jan 28, 2022, at 11:03 AM, Alex Zavatone via Cocoa-dev >>>>> <cocoa-dev@lists.apple.com <mailto:cocoa-dev@lists.apple.com>> wrote: >>>>> >>>>> Hi there. I’m in the middle of trying to find out how the hell to remove >>>>> a background from a UINavigationBar and it’s not easy. You’d think that >>>>> you could get a UInavigationBar.navigationitem.background and remove it >>>>> from a superview or set its alpha to 0, but it’s not that easy. >>>>> >>>>> Does anyone have any clue how to get a reference to the background once >>>>> it has been set so that it can be set to 0 alpha or removed from the >>>>> superview? >>>>> >>>>> Thanks in advance and happy Friday. Apple sure has ways to make things >>>>> that should be simple very obscure and extremely deifficult to handle. >>>>> >>>>> Cheers, >>>>> Alex Zavatone >>>>> _______________________________________________ >>>>> >>>>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com >>>>> <mailto:Cocoa-dev@lists.apple.com>) >>>>> >>>>> Please do not post admin requests or moderator comments to the list. >>>>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >>>>> <http://lists.apple.com/> >>>>> >>>>> Help/Unsubscribe/Update your Subscription: >>>>> https://lists.apple.com/mailman/options/cocoa-dev/david.duncan%40apple.com >>>>> >>>>> <https://lists.apple.com/mailman/options/cocoa-dev/david.duncan%40apple.com> >>>>> >>>>> This email sent to david.dun...@apple.com <mailto:david.dun...@apple.com> >>>> >>> >> > > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/mabdullah%40karelia.com > > This email sent to mabdul...@karelia.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. 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