InfoQ Homepage iOS Content on InfoQ
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Google and Apple Publish Exposure Notification API Draft
Only a few weeks after its initial announcement, the partnership between Google and Apple to provide their mobile OSes with solid foundations for contact tracing applications has reached a key milestone, a preliminary draft of the Exposure Notification API and beta release for iOS.
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Google and Apple Jointly Working on Contact Tracing for iOS and Android
Google and Apple announced a joint effort to create a Bluetooth-based contact tracing solution for iOS and Android. This initiative aims to provide a tool to fight the spread of the COVID-19 virus by alerting participants who have been in contact with someone who has been positively diagnosed.
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How Uber Deals with Unreachable Code Associated to Feature Flags in its Mobile Apps
Piranha is a newly open-sourced tool by Uber that can be used to remove stale code in mobile apps written in Java, Objective-C, or Swift for Android and iOS. The tool was born with the aim to pay technical debt ensuing from the process of implementing and eventually removing feature flags, says Uber.
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Flutter Golden Tests Powering Automated UI Testing at eBay
Automating UI tests to ensure the visual appearance of your app is correct on all supported devices and form factors is usually challenging. Flutter golden tests may help simplify this task, as eBay's approach to UI screenshot testing for its Motors app shows.
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Facebook Natively Rewrites Messenger to Make it Faster and Smaller on iOS
Facebook has been at work to rewrite its iOS Messenger app using native technologies. Soon to be available on the App Store, the new Messenger is twice as fast on launch and less than one-fourth in size, says Facebook. Its unified architecture outlines a new SQLite-centered approach to native app development.
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Swift 5.2 Brings callAsFunction, Subscript with Default Arguments, and More
The Swift programming language, originally developed by Apple and released in 2014, has just reached version 5.2. Swift 5.2 is available in the Xcode 11.4 Beta, bringing callAsFunction, subscript with default arguments, Key Path Expressions as Functions, a new diagnostic architecture, and more.
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Swift Crypto Brings Apple CryptoKit API to Server-Side Swift
Swift Crypto is a new open-source library for Swift that aims to provide a common API for cryptographic operations on all supported platforms. On macOS, Swift Crypto leverage Apple's CryptoKit framework, while BoringSSL is used for all other platforms.
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React Native is the Way to Go for Mobile App Development at Shopify
After a year spent experimenting with React Native, Shopify says it will adopt it for future mobile app development. Reported benefits include almost doubled development performance and over 95% code sharing across platforms.
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NativeScript Replaces JavaScriptCore with V8 for iOS Apps
NativeScript new JavaScript runtime for iOS, based on Google's V8 engine, is now in beta, after several months of development. This change should bring reduced app startup time as well as simplify NativeScript's development process.
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Swift 6 Will Bring Improved Concurrency Support and Memory Ownership
Swift development lead Ted Kremenek has announced a preliminary vision of what Swift 6 could include and how the community will get there on Swift's mailing list. Swift 6 will bring significant improvements to the language, including better concurrency support and memory ownership. No fixed timeline has been set yet, though, leading people to think it will not happen in 2020.
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Blazor Makes Its Way Into Cross-Platform Mobile App Development
Officially announced at the "Focus on Blazor" .NET Conf, Blazor's Mobile Bindings are a new experimental project aimed to enable cross-platform mobile app development using Microsoft Blazor and .NET for iOS and Android. Similarly to React Native, Mobile Blazor Binding use native UI controls, thus enabling a native look and feel.
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Using React Native for iOS and Android App Development at Walmart
For the last two years, Walmart engineers have been steadily integrating React Native into their mobile development tool chest. Instead of aiming for a pure React Native app, they chose to deliver a hybrid app leveraging the best of native and React.
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What Made the iOS 13 Launch So Buggy and How to Fix the Development Process
Apple's latest iOS release, iOS 13, was affected by a number of bugs that caused disappointed reactions by users. In a story ran by Bloomberg, sources familiar with Apple explained what went wrong in the iOS 13 release process and how Apple is aiming to fix this for the future.
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Hidden Costs of iOS/Android Shared Development, at Dropbox and Slack
Building a new native mobile app requires a lot of work since it is necessary to code it in Kotlin/Java for Android, and then again in Objective-C/Swift for iOS. In the past, Dropbox and Slack had been implementing a strategy to share code between platforms, building a shared library in C++, until recently, when they decided to get rid of this.
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Objective-C Introduces Zero-Runtime-Cost Direct Methods
Since Swift was launched in 2014, Objective-C has known only minor changes, mostly aimed at improving its interoperability with Swift. Far from being a fringe language, though, Objective-C has recently added support for "direct" methods, which look like ordinary class methods but behave more like a C function.