Improving Android video on News Feed with Litho

What this post added

This post details the migration of the Android News Feed video rendering to Litho, a UI framework. It addresses challenges in efficiently rendering video within a scrollable feed, including CPU, memory, and network resource demands, and the impact of device fragmentation. The solution involved creating a new Litho video component architecture with `CoreVideoComponent`, `AutoplayVideoComponent`, and `VideoAttachmentComponent` to improve maintainability and flexibility. Performance improvements were achieved through Litho's advanced recycling system and pre-allocation feature, reducing object allocations and mitigating frame drops. The post also highlights Litho's lifecycle callbacks (`onPrepare`, `onMount`, `onUnmount`) for encapsulating video playback logic and `onCreateLayout` for layout construction and resource preparation.