InfoQ Homepage iOS Content on InfoQ
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The Ten Year Journey of Facebook's App for iOS
Facebook rewrote its iOS app in 2012 to take advantage of native performance and improve reliability and usability over its previous HTML5-based cross-platform implementation. In the ten years since the rewrite, the app codebase has evolved non-stop to account for the introduction of new features, to circumvent SDK limitations, and to keep up with changes in the iOS platform.
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AirBnb Animation Engine Lottie Improves Performance by Adopting Core Animation
AirBnb has announced the fourth major iteration of its open-source vector-based animation engine Lottie. Thanks to the adoption of Core Animation, Lottie 4.0 provides significant performance improvements and reduces CPU load, says AirBnb iOS engineer Cal Stephens.
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Apple Announces Full Swift Rewrite of the Foundation Framework
The Swift team has started to work on a new open-source implementation of the Foundation framework. To be written entirely in Swift, the new Foundation aims to improve performance by getting rid of conversion costs between Objective-C and Swift as well as to provide the opportunity for modularizing and clean it up.
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Swift to Add Support for Ownership, Macros, and C++ Interop
The Swift language workgroup has detailed the main focus areas for the development of Swift in 2023 and further on, which include defining an ownership model for memory management, non-copyable types, a macro system, and C++ interoperability.
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Apple Adds Core ML Support for Stable Diffusion on Apple Silicon
Apple released a set of optimizations to Core ML to enable running the Stable Diffusion text-to-image model on Apple Silicon-powered devices running the latest iOS or macOS versions, respectively iOS 16.2 and macOS 13.1.
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AWS Amplify for Swift Reaches 2.0, Brings Async/Await and macOS Support
Previously known as AWS Amplify iOS, AWS Amplify for Swift now offers a rewritten API to support Swift async/await and make concurrency code more idiomatic. Additionally, the new release introduces beta support on macOS for a number of AWS features, including Auth, Storage, Geo, and others.
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Safe Mode is Lyft's Approach to Handling Feature Flags Incidents
Feature flags are a useful tool to conduct A/B experiments and to roll out changes in a controlled way. To make sure that their use does not end up disappointing users when a change causes a crash or degrades the user experience, Lyft created Safe Mode, specifically aimed to prevent crash loops on launch.
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Kotlin Multiplatform Mobile Enters Beta
Created by JetBrains to enable using Kotlin to build iOS and Android apps with native UI from a single codebase, Kotlin Multiplatform Mobile has exited the experimental phase and is now available in beta.
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Swift 5.7 Brings New Generics Implementation and Reference Counting Improvements
Announced at WWDC 2022, Swift 5.7 is now officially available. It includes major improvements to the compiler internals, and many syntax and standard library additions, including String regex, concurrency updates, and more.
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How Rewriting a C++/ObjC Codebase in Swift Shrank it down to 30%
In a recent article on the Swift language blog, Graphing Calculator's creator Ron Avitzur recounted how his decision to fully rewrite his app in Swift allowed him to shrink its codebase down to 30% of its original size, improving maintainability and readability while not losing performance.
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Apple Introduces Lockdown Mode to Secure Its OSes against Cyberattacks
The new Lockdown Mode announced by Apple, available now in the latest betas of iOS 16, iPadOS 16, and macOS Ventura, aims to provide a further level of protection to users at risk of highly targeted Cyberattacks.
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JFrog Artifactory Supports Binary Dependencies for Swift
JFrog has announced its Artifactory repository can be used as a binary package registry for Swift dependencies using the Swift Package Manager.
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SwiftUI Brings Charts, Data-Driven Navigation, and More
At WWDC 2022 Apple has announced a new iteration of SwiftUI, its declarative framework to build UIs for iOS, iPadOS, macOS, and watchOS. Among the most significant highlights are SwiftUI new charting capabilities, refined navigation, new controls, and more.
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Research Finds over 1.5 Million "Abandoned" Mobile Apps
On the heels of a recent discussion sparked on the Web by Apple's policy aimed to remove outdated apps from the App Store, analytics company Pixalate released a report providing insight into how many iOS and Android apps are outdated and for how long they have not received any update.
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Apple to Remove Outdated Apps from the App Store
After several iOS developers reported Apple warned them it would remove a number of their apps, Apple has confirmed and clarified its policy about removing outdated apps from the App Store. The policy has been enforced since 2016 and affects apps that have not been updated within the last three years.