iOS × UI Performance
iOS UI Performance, page 2
iOS UI Performance articles 31–60 of 70
Announcing Lottie 4.0 for iOS
Airbnb just solved one of mobile animation's biggest performance problems. Lottie 4.0 eliminates the CPU overhead that was causing animations to drop frames and freeze.
Improving Auto Pause for Everyone
Strava's engineering team faced a deceptively hard problem: how do you automatically detect when a runner stops moving without draining their battery or showing the wrong pace?
How to Create Dynamic Island and ActivityKit with Flutter
Amorn Apichattanakul from KBTG shows Flutter developers how to tap into iOS's Dynamic Island feature. Yes, you can build Live Activities in Flutter apps—here's the bridge you need.
How Tinder Solves Complex Lottie Localizations with Server Driven UI
Tinder was manually creating 40+ localized Lottie animations for every campaign. Their solution? A clever architecture that reduced it to just one.
Improving the iOS Listing Screen with Generics
Etsy's iOS listing screen handles 16% of all app traffic. But after a decade, its monolithic architecture was slowing everything down.
How We Revamped Tokopedia Play for iOS: So Fast & Productive
Tokopedia's iOS team rewrote their entire live streaming chat feature from scratch in record time. The reason? React Native couldn't handle the load during major promotions.
Airbnb's Page Performance Score on iOS
Airbnb built a unified performance scoring system that works across all platforms. Here's how they instrumented it on iOS to track real user experience at scale.
Monitoring Performance of Screens in Your iOS App
Revolut's iOS team was drowning in vague performance reports. "This screen is laggy" became a detective hunt through Xcode Profiler with no clear starting point.
How Do We Improve Our Most Important Page on iOS App
Tokopedia's homepage was crashing on millions of iOS devices. The culprit? React Native couldn't keep up with their scale.
Implementing Diffable DataSource for Heterogeneous Items in iOS
Pattogató Bence from Wise Engineering tackles a problem every iOS dev faces: animating heterogeneous items in collection views without the usual headaches. His solution? A clever enum wrapper that makes UIColle...
Debugging the UI of Third-Party iOS Apps
Ever wonder how Twitter built their custom tab bar or how Reeder optimized their scroll performance? There's a way to peek under the hood.
A Deep Dive into Airbnb’s Server-Driven UI System
Airbnb ships features simultaneously across web, iOS, and Android without waiting for app store releases. Their secret? Server-driven UI.
Improving Platform Channel Performance in Flutter
Aaron Clarke from Google's Flutter team eliminated unnecessary memory copies in platform channels and achieved up to 52% performance gains. Here's how he debugged his way through Objective-C class clusters and ...
Resizing Images In SwiftUI
Kari Grooms from Expedia Group's Vrbo team cracked one of SwiftUI's most frustrating puzzles: resizing images without distortion. What should be simple turns into a 10-step journey through modifier hell.
Tinder Swipe Animation in SwiftUI Tutorial
Gary Tokman shows how to build Tinder's signature swipe animation in SwiftUI—and it takes less than 10 minutes. No complex gesture handling, no hours of UIKit code, just declarative SwiftUI magic.
SwiftUI Stretchable Header View Implementation
Oleg Tsibulevskiy from Just Eat Takeaway shows how to build one of iOS's most popular UI effects with surprisingly little code. The stretchable header that zooms and stretches as users scroll? It's easier than ...
Pre-submit UI Tests at Pinterest
Pinterest's UI test suite was failing more than 50% of the time. Engineers were drowning in false positives, and tests had lost all credibility.
Motion Engineering at Scale
Airbnb was shipping hundreds of features, but custom animations were getting cut due to complexity. Their solution? A declarative framework that reduced transition code from hundreds of lines to just a few.
Lottie and Swift at Airbnb
Airbnb rewrote their massively popular Lottie animation library from scratch in Swift. Here's why they chose a complete rewrite over incremental updates.
Bank of America Amps Up In-App Experiences
Bank of America cut their mobile app response time in half. Here's how they did it with a simple API consolidation strategy.
Improving Animations on iOS with Stagehand
Cash App just open-sourced Stagehand, their solution to a problem that's plagued iOS developers since 2008: building animations shouldn't feel like archaeology.
Interactive 3D Cards for Revolut iOS App
Igor Dudenkov from Revolut reveals how they built interactive 3D metal cards in iOS—without touching OpenGL or Metal frameworks. The secret? Apple's high-level SceneKit framework that made photorealistic card r...
Creating a Fluid Scroll Experience on iOS
ClassPass engineers faced a deceptively simple challenge: build an Apple Maps-style draggable list. The first attempt looked perfect—until users tried the continuous scroll.
Handling Multiple Native iOS Views in React Native
Callstack tackles a common React Native challenge: managing multiple native iOS views without the usual headaches. This 2019 piece still holds valuable lessons for teams bridging native and JavaScript code.
Implementing Infinite Scrolling Efficiently
Phong Lam from Walmart Global Tech tackles a problem every mobile dev faces: infinite scroll that doesn't tank performance. His solution? Stop rendering everything and start being strategic.
Server-Provided Animations in iOS Apps
Valerii Che from Badoo solved a problem every mobile team dreads: waiting days for App Store approval just to update animations. His solution? Move them to the server.
Introducing AloeStackView for iOS
Marli Oshlack from Airbnb reveals how they slashed iOS screen development time from weeks to hours. The secret? Rethinking the entire approach to UI layout.
Implementing Scalable UI in iOS: Better, Faster Performance
Alexis Santos from Bumble reveals how his team transformed iOS UI development from chaotic to scalable. The secret? A custom framework that cut compilation time and eliminated code duplication.
Universal Links for Android and iOS
Konstantin Yakushev from Bumble Tech reveals the brutal truth about universal links: Apple and Google's 'simple' solution is riddled with undocumented bugs that break user experience in shocking ways.
iOS UI Development Best Practices
Valerii Che from Bumble's engineering team reveals why they ditched Storyboards entirely. Their code-first approach handles weekly feature releases without breaking existing functionality.