Diagnosing and Fixing React Native Native‑Module Linking Failures
When a new native module crashes a React Native app, this guide walks through the symptoms, ordered checks, fixes, and escalation steps to restore a healthy build.
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Designing iOS Measurement Around App Tracking Transparency
How to handle Apple's App Tracking Transparency when users deny IDFA access, with a Swift example and SKAdNetwork fallback guidance.
UIKit vs SwiftUI: A Decision Guide for New iOS Projects
Choosing between UIKit and SwiftUI can shape your app’s development timeline, compatibility, and future maintenance. This guide outlines the constraints, compares key aspects in a concise table, explains trade‑offs, and shows a hybrid implementation example.
appleFrom Web to Native: Building and Testing a Capacitor Plugin for iOS and Android
Learn how to write, test, and ship a Capacitor plugin that bridges JavaScript to native Swift and Kotlin, including threading, build steps, and verification.
capacitor
androidConfiguring App Transport Security Exceptions in iOS and macOS Apps
Add an NSExceptionDomains entry to Info.plist to allow HTTP for a specific domain while keeping ATS enabled everywhere else.
Implementing iOS Reachability: Detecting Network Changes with SCNetworkReachability
Learn how to use iOS SCNetworkReachability to monitor Wi‑Fi, cellular, and offline states. The guide covers prerequisites, a Swift wrapper, flag interpretation, UI updates, and best‑practice limitations.
Enabling Hermes in React Native for Faster Startup and Lower Memory
Learn how to enable the Hermes JavaScript engine in a React Native project to improve startup time and reduce memory usage, with steps for Android and iOS, verification commands, and rollback instructions.
Sign in with Apple: The Engineering Decisions That Matter Before You Ship
Sign in with Apple is easy to add and easy to get wrong. Here's how to handle one-time profile data, server-side JWT validation, and the private email relay before they bite you in production.
Choosing Between XCTest Assertions, Nimble Matchers, and Custom Matchers in Swift Tests
A decision guide for Swift test authors: when plain XCTest assertions suffice, when Nimble's built-in matchers pay off, and when a custom matcher is worth writing — with setup, code, and validation.