The Case of the Mystery Body Recompute: Debugging SwiftUI, Core Data, and Ghost Body Passes

If you have spent enough time with SwiftUI, you have likely run into the dreaded ghost re-render: your view appears, nothing in your data model has visibly changed, but body fires twice. Recently, I embarked on a deep-dive investigation using LLDB, stack traces, and Self._printChanges() to uncover why a presented AlertContent view was evaluating its body twice upon Read more

makeWidget() vs. init(widget:): Does Swift Prefer Factory Methods or Convenience Inits?

If you’ve spent any time working across different programming languages, you’ve likely encountered two distinct design philosophies for object creation: When designing Swift APIs—whether for an app architecture or an open-source library—a common question arises: Should you write a make…() factory method or a convenience init? The short answer: Swift strongly prefers initializers. Let’s break Read more