iOS
Articles on iOS performance, Swift optimization, Xcode tooling, and building fast Apple platform apps.
iOS engineering articles 721–733 of 733
Service Update Major Video System Update and Prague is Online
Twitch rebuilt their entire video infrastructure while serving millions of concurrent viewers. Here's how they pulled off a zero-downtime migration.
Shaving off 50% Waiting Time from the iOS Edit-Build-Test Cycle
The article content couldn't be loaded (404 error), so I'm unable to provide an accurate summary of Spotify's iOS build optimization work.
Improving Etsy for iOS with server-based logging
Etsy's iOS team faced a dilemma: their safety net for preventing crashes was quietly hiding logic bugs across the entire codebase.
Etsy's Device Lab
When mobile traffic jumped from 25% to 40% in six months, Etsy knew they had a problem. Their engineers were testing on personal iPhones while users browsed on dozens of different devices.
Login Verification On Twitter For iPhone And Android
Twitter built a 2FA system where your private keys never leave your phone and the server stores no persistent secrets. Here's the engineering behind it:
Mobile App Development: Catching Crashers
Twitter's iOS team shipped beta builds to employees and discovered crashes that would never show up in testing. The culprit? Jailbroken devices and unprefixed Objective-C categories.
Introducing the Dropbox Sync API for Mobile Developers
Brian Smith from Dropbox introduced an API in 2013 that promised to make cloud sync feel like working with local files. Developers loved it, but there's a twist.
Introducing the Super Debugger: Wireless Real-Time Debugging for iOS
Jason Brennan from Shopify just open-sourced a debugger that lets you tweak iOS UI properties and watch them update in real-time on your device. No recompiling, no breakpoints, just instant visual feedback.
Right To Left Support For Twitter Mobile
Christine Tieu from Twitter's Mobile Web Team reveals how they flipped their entire mobile UI for Arabic and Farsi without drowning in duplicate CSS rules.
Keeping Instagram Up with Over a Million New Users in Twelve Hours
Instagram's Android launch brought 1 million new users in 12 hours. Here's how their infrastructure team kept the lights on during hypergrowth.
Blazing Fast Node.js: 10 Performance Tips for LinkedIn Mobile
LinkedIn Engineering discovered that one synchronous file write operation tanked their Node.js throughput from thousands of requests per second to just dozens.
Mobile Proxy Architecture at SoundCloud
SoundCloud's mobile team hit a wall: their API-first approach broke down when browsers couldn't handle CORS redirects properly. Their solution? A proxy architecture that evolved from nginx to Node.js.
iOS App Sharing Implementation
Gernot Poetsch breaks down how iOS apps can leverage SoundCloud's connection API to share content across social networks without managing tokens yourself. This 2011 guide still offers valuable lessons on delega...