My application makes use of opaque navigation and tab bars in its layout. I also use modally presented nav bar controllers using the card style introduced in iOS 13. Everything looks clean and as expected when running the app compiled from Xcode 12 (Test Flight or App Store).
When I run my project using Xcode 13, I'm getting really strange rendering behavior of the bars. In light appearance, they're black instead of opaque white in some cases. In another case, when I have a MKMapView filling the entirety of my view, the tab bar is totally invisible and there are just the blue tab bar items floating on top of the map.
I have attached images of three different scenarios that visually render as expected on Xcode 12, but fail horribly when deployed via Xcode 13.
- Opaque Tab Bar w/ nav controller
- Opaque Tab Bar w/ map view inside view controller
- Opaque Tab Bar w/ Opaque Navigation Bar presented modally as card.
I was able to produce these issues using both SwiftUI and UIKit via Storyboards
I've filed two feedbacks with Apple and sent them a sample project. If anyone else is encountering this issue feel free to mention feedback in yours to upvote the issue.
FB9611443 FB9207757
Hope this gets fixed before RC so I can send an app update in making use of new features!