Facebook is open-sourcing its Litho framework for smooth UI performance on Android mobile applications.

The framework supports native development and leverages the declarative model used in Facebook’s React UI library and the Yoga layout system. Layout operations are decoupled from Android views, which “allows us to move the CPU-intensive measure and layout operations to the background thread, saving milliseconds,” said Facebook software engineers Pasquale Anatriello and Marco Cova.

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