It’s been 18 years since iOS launched and 17 years since the iOS SDK was released—yet the navigation bar is still frustratingly uncustomizable. Sure, you can tweak text attributes, background images, and colors, but anything beyond that? Forget it. Even Apple’s own Invites app highlights how limited it is. Take back buttons, for example. UIKit technically allows you to set an image or a custom title, but try adding a fully custom view (say, one that matches your company’s design) usin...
