--- title: A Field Guide to UIKit Compatibility Pitfalls | daily.dev description: A practical guide documenting real-world UIKit compatibility bugs introduced with Liquid Glass on iOS 26, still partially present in iOS 27. Covers four main... canonical: https://daily.dev/posts/a-field-guide-to-uikit-compatibility-pitfalls-tdyhi9qig twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A Field Guide to UIKit Compatibility Pitfalls | daily.dev og:description: A practical guide documenting real-world UIKit compatibility bugs introduced with Liquid Glass on iOS 26, still partially present in iOS 27. Covers four main... og:url: https://daily.dev/posts/a-field-guide-to-uikit-compatibility-pitfalls-tdyhi9qig og:image: https://api.daily.dev/og/posts/TDyhi9qIG.png og:image:alt: A Field Guide to UIKit Compatibility Pitfalls og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A Field Guide to UIKit Compatibility Pitfalls **[Fatbobman](https://daily.dev/sources/fatbobman)** · [@fatbobman](https://daily.dev/fatbobman) · 7 min read · 0 upvotes · 0 comments ## Summary A practical guide documenting real-world UIKit compatibility bugs introduced with Liquid Glass on iOS 26, still partially present in iOS 27. Covers four main problem areas: UIBarButtonItem custom views losing size and color (fixed by switching to SwiftUI via UIHostingController), badge API update failures and button ordering issues, UITabBarController rebuild bugs causing visual glitches, WKWebView layout problems with fixed-position elements under a tab bar, and an unresolved Stepper offset bug triggered by keyboard appearance. Each section includes code-level workarounds and Apple Feedback IDs where applicable. The author recommends staying close to Apple's HIG and testing on every supported OS version. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Liquid Glass Adaptation in UIKit \+ SwiftUI Hybrid Architecture](https://daily.dev/posts/liquid-glass-adaptation-in-uikit-swiftui-hybrid-architecture-zjhbaignh) · Fatbobman · 0 upvotes · 0 comments --- Tags: [#ios](https://daily.dev/tags/ios), [#swiftui](https://daily.dev/tags/swiftui) [View this post on daily.dev](https://daily.dev/posts/a-field-guide-to-uikit-compatibility-pitfalls-tdyhi9qig) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A Field Guide to UIKit Compatibility Pitfalls","url":"https://daily.dev/posts/a-field-guide-to-uikit-compatibility-pitfalls-tdyhi9qig","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-field-guide-to-uikit-compatibility-pitfalls-tdyhi9qig"},"datePublished":"2026-07-29T11:18:35.624Z","dateModified":"2026-08-24T09:00:24.125Z","description":"A practical guide documenting real-world UIKit compatibility bugs introduced with Liquid Glass on iOS 26, still partially present in iOS 27. 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