A UIKit screen with image conversion and API response handling stutters while scrolling. Which work would you move off the main actor?
Heavy computation that occupies the CPU for a while, like JSON decoding, UIImage resizing, and thumbnail generation, goes off the main actor, and only code that touches the view hierarchy and cell updates stays on main. The rest runs in nonisolated functions, Task.detached, or a separate actor.
ConcurrencyShort answerAdvanced
You've been asked to move a large app written with completion handlers and GCD to Swift 6…
#mainactor
ConcurrencyShort answerAdvanced
In Swift Concurrency, what's the difference between putting @MainActor on a whole view…
#mainactor
ConcurrencyShort answerBasics
In Swift, what's the difference between a class and an actor?
#mainactor
ConcurrencyShort answerIntro
A new iOS feature needs a network result shared across several screens, and the UI has to…
#mainactor