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.

Generating Text Inputs for Mobile App Testing Using GPT-3

A group of researchers from the Chinese Academy of Sciences and Monash University have presented a new approach to text input generation for mobile app testing based on a pre-trained large language model (LLM). Dubbed QTypist, the approach was evaluated on 106 Android apps and automated test tools, showing a significant improvement of testing performance.

Android Extension SDK Aims to Simplify the Use of Modular System Components

Introduced with Android 10, Modular System Components enable updating end-user devices outside of the normal Android release cycles. The new Extension SDK framework, now public, aims to make their integration simpler for developers.

How Lyft Detects Android Memory Leaks in Production

While modern tooling for Android and iOS enable memory leak detection using local builds, this is not enough to guarantee an app shows correct memory behavior in production, where it runs on a wide range of devices in diverse conditions. For this reason, Lyft engineers combine A/B testing and memory observability to detect which features leak memory.

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.