Meta Platforms, Inc.
Incremental mount framework

Abstract:

Systems and methods directed to improve the responsiveness of an application's UI and improve a user's experience are disclosed. In particular, the systems and methods implement layout and rendering of UI components in a mobile application as two independent steps: layout and mount. During the layout step, attributes related to a layout are identified. For example, during the layout step, a list of UI components in each container, and their respective sizes and positions are identified. The layout result is then used in the mount step to create an actual view hierarchy to be rendered on screen once the component becomes visible. As result of this decoupling of layout operations from the rendering operations, the CPU-intensive measure and layout operations can be moved to the background thread, saving milliseconds.