Tagged: Swift
32 articles tagged with "Swift"
Designing agentic iOS features with clear user control
A practical model for agentic app features: explicit user intent, bounded tools, visible progress, confirmation points, and recoverable actions.
Foundation Models in production: practical boundaries for on-device AI
How to decide which Foundation Models features belong on device, when to use Private Cloud Compute or a server model, and how to design reliable failure paths.
Prompting coding agents for iOS work: tighter briefs, smaller diffs, better results
How to use coding agents for iOS development without drowning in technical debt. Focus on contextual briefs, bite-sized tasks, and a strict review loop.
Reviewing AI-generated iOS code without lowering the bar
AI-generated iOS code should be reviewed with the same standards as human code: product behavior, lifecycle edges, concurrency ownership, tests, architecture, and production diagnosis. Faster typing is not a quality model.
Code review for Swift teams: what to standardize and what to stop arguing about
Swift code review works better when teams standardize the decisions that affect correctness, architecture, testability, and ownership — and stop relitigating harmless style preferences in every pull request.
Xcode build times: what actually helps
Xcode build times improve when teams reduce work, make dependency invalidation boring, split targets with discipline, measure clean versus incremental builds, and stop treating DerivedData folklore as a strategy.
Finding memory leaks in iOS apps without wasting a day in Instruments
Memory leaks are not solved by staring at Instruments until the graph confesses. Start with ownership, reproduce the leak, prove deallocation, then use Instruments for the cases that actually deserve it.
Logging on iOS: useful structure, sane defaults, and better debugging
Most iOS logging is either print spam that nobody reads or silence that hides the bug. A reasonable logging setup is small, structured, and actually useful when something breaks at 2 AM.
Concurrency boundaries in networking and persistence
Most concurrency bugs in iOS apps are not race conditions in the textbook sense. They are boundary violations: the wrong actor touching the wrong layer at the wrong time.
Offline-first on iOS: sync, conflicts, and earning user trust
Offline-first is not a checkbox. It is a contract with the user about what happens when the network disappears, how conflicts get resolved, and whether their data is actually safe.
SwiftUI forms that stay manageable as the product grows
A maintainable SwiftUI form is not one giant view with thirty bindings and a prayer. Split by section ownership, keep drafts local, validate with intent, and stop letting product growth turn basic data entry into sludge.
Modeling app state so SwiftUI updates stay predictable
Predictable SwiftUI starts with boring state boundaries: keep ownership clear, derive local view state instead of sharing giant models, and stop letting one write ripple through half the app.
Image loading on iOS: caching, decoding, and the mistakes that make scrolling worse
A practical image-loading setup for iOS: cache the right thing, decode off the main thread, control request churn, and stop blaming scrolling jank on the collection view.
Building a SwiftUI design system without overengineering it
A useful SwiftUI design system is not a giant abstraction layer. It is a small set of tokens, components, and rules that make product work faster without hiding the platform or freezing the app in theory.
Deep links on iOS: a setup that stays maintainable
A maintainable deep-linking setup comes from one rule: treat links as app routes with typed parsing, ownership boundaries, and tests, not as random URL handling scattered across the codebase.
Modern iOS testing stack: fast unit tests + stable UI tests + strategy
A useful iOS testing stack is less about tool choice and more about test boundaries, promotion rules, and keeping slow checks rare enough that people still trust the signal.
Feature flags: safe rollouts without shipping fear
A practical feature flag setup for iOS: separate release, experiment, and kill-switch flags, keep evaluation deterministic, and avoid the cleanup debt that turns rollout safety into product entropy.
Background tasks in 2026: what works, what gets throttled, and how to be reliable
A practical guide to background work on iOS in 2026: where BGTaskScheduler helps, where the system throttles you, and how to design refresh and processing flows that stay reliable on real devices.
Sendable pitfalls: what actually breaks, and how to redesign safely
Swift 6 surfaces Sendable problems exactly where values cross isolation boundaries. Here is what usually breaks, how to classify each error, and how to redesign ownership without hiding the problem behind @unchecked Sendable.
Actors in practice: safe shared state without "actor everywhere" nonsense
A practical guide to Swift actors: where they help, where they hurt, and how to isolate shared state without turning your app into async soup.
Swift 6 strict concurrency migration: the staged plan that won’t brick your app
A practical migration plan for Swift 6 strict concurrency: baseline warnings, isolate boundaries, fix Sendable issues, and tighten checks without stalling delivery.
SwiftUI lists that don’t lag: identity, diffing, and avoiding layout thrash
Most SwiftUI list “performance problems” are self-inflicted: unstable identity, accidental view churn, and heavy layout work in rows. Here’s how to make lists fast, measurable, and boring.
AGENTS.md for iOS: guardrails that stop AI from breaking your app
Treat AI as a powerful, unreliable teammate. An AGENTS.md file gives it constraints, workflows, and verification steps that keep your iOS codebase stable and your PRs reviewable.
Slash commands that save hours: /build /test /perf /release-notes for iOS
Turn repetitive iOS workflows into reliable one-liners. Define a small set of slash commands that run the right builds, tests, and checks, and generate release notes without ceremony.
Codex workflow for iOS: guardrails, repeatable loops, and how to keep the build green
A practical Codex-assisted workflow for iOS teams: define guardrails, run tight build and test loops, measure impact, and ship changes without breaking CI.
Networking in modern iOS: typed endpoints, retries/backoff, and observability without bloat
A practical URLSession setup that scales: typed endpoints and decoding, retry rules that do not create duplicate side effects, and lightweight logging/metrics so you can measure reliability and latency.
Modern iOS testing stack: fast unit tests + UI tests that don’t flake
A pragmatic iOS testing setup: keep unit tests fast, make UI tests stable, and add one verification loop that catches regressions without turning CI into a lottery.
App launch performance in 2026: first-frame thinking, cold-start budgets, and practical fixes
A practical way to measure iOS cold start and ship improvements: define a first-frame budget, diagnose the common failure modes, and verify changes with repeatable runs.
StoreKit subscriptions in the real world: entitlements, edge cases, and recovery strategies
A practical StoreKit 2 approach for subscription gating that survives renewals, grace periods, restores, and the weird stuff you only see after launch.
SwiftUI animations that don’t glitch: transactions, explicit vs implicit, and performance-safe patterns
A practical SwiftUI animation guide: how transactions actually work, why animations disappear, and how to ship smooth UI without expensive re-renders.
SwiftUI Observation performance: stop unwanted re-renders and measure what matters
Practical patterns for @Observable, avoiding accidental invalidations, and proving performance wins with measurement (not vibes).
Swift Concurrency in Practice: Async/Await and Actors
Practical Swift concurrency patterns for async/await, actors, MainActor, Sendable, cancellation, and building responsive iOS apps without data races.