SwiftUI on Young's Blog https://blog.yellowbox.dev/en/tags/swiftui/ Recent content in SwiftUI on Young's Blog Hugo -- 0.154.5 en Tue, 21 Apr 2026 00:00:00 +0900 Debugging SwiftUI Image Flickering: Three Bugs Stacked on Top of Each Other https://blog.yellowbox.dev/en/post/indie-dev/swiftui-image-flickering-triple-bug/ Tue, 21 Apr 2026 00:00:00 +0900 https://blog.yellowbox.dev/en/post/indie-dev/swiftui-image-flickering-triple-bug/ Album artwork in my music app kept flickering. Turns out it was three separate bugs: NSCache lookup order, @State reset timing, and a URL that changed on every render. Why Storing Closures in SwiftUI @Observable Causes EXC_BAD_ACCESS https://blog.yellowbox.dev/en/post/indie-dev/swiftui-observable-closure-crash/ Tue, 21 Apr 2026 00:00:00 +0900 https://blog.yellowbox.dev/en/post/indie-dev/swiftui-observable-closure-crash/ Storing closure properties in an @Observable class caused EXC_BAD_ACCESS. @ObservationIgnored didn't help. Separating into another class didn't help. The fix was ditching the ViewModel pattern entirely.