Keyframes
Keyframes is a combination of (1) an ExtendScript script that extracts image animation data from an After Effects file and (2) a corresponding rendering library for Android and iOS. Keyframes can be used to export and render high quality, vector based animations with complex shape and path curves, all with minimal file footprint.
Usage
Developing Animations in After Effects
For a detailed list of constraints for developing animations to use with the Keyframes library, please refer to