Finding UIKit Memory Leaks with Instruments
Reproduce a UIKit retain cycle, explain its ownership graph, and verify the fix with Memory Graph and Instruments.
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Practical mobile engineering patterns, debugging guides, and delivery notes.
5 Swift Concurrency Cancellation Mistakes That Cause Stale UI
A cancelled Swift task can still return. This tested sample combines cooperative cancellation with a latest-request-wins check so stale work cannot replace current UI…
How I Debug iOS Push Notifications Without Guessing
A missing banner can fail at several points. I trace the push from app identity and permission through APNs and on-device presentation, keeping evidence…
How I Handle Deep Links Across UIKit and SwiftUI
Deep links don’t wait for the UI to be ready. I use one typed router to validate the URL, hold cold-start routes, and keep…