Open-sourcing Litho, a declarative UI framework for Android

This post introduces Litho, a declarative UI framework for Android, open-sourced from Meta. Litho aims to improve UI performance by decoupling layout operations from Android views using React's declarative model and Yoga layout system, allowing heavy measure and layout operations to be moved to a background thread. It also breaks down complex views into smaller, incrementally rendered pieces and recycles them, reducing memory usage and improving scroll performance by up to 35%.