When building SwiftUI applications, it is easy to default to adding mutable boolean flags onto domain models. On paper, adding var isFavorite: Bool to a Recipe struct feels natural. In practice, it entangles domain content with user presentation state, triggers unnecessary view invalidations, and complicates syncing with persistent storage. Here is an architectural walkthrough Read more
In the classic WWDC 2020 session “Data Essentials in SwiftUI” (around timestamp 4:18), Apple presented a core architectural pattern for managing complex form state: the EditorConfig struct. The speaker highlights why wrapping form data into a value type is so powerful: “EditorConfig can maintain invariants on its properties and be tested independently. And because Read more
When managing modal presentation in SwiftUI, developers frequently face a dilemma between direct boolean bindings (.sheet(isPresented:)) and item bindings (.sheet(item:)). While .sheet(item:) binds presentation directly to optional data, it presents architectural trade-offs: the item passed to the sheet content closure is immutable value data, meaning two-way editing requires workarounds like class reference Read more