코어 애니메이션. 시각적 요소를 만들고, 구성하고, 애니메이션 하는 프레임워크.
Framework – Render, compose, and animate visual elements.
공식문서참고
Core Animation provides high frame rates and smooth animations without burdening the CPU and slowing down your app. Most of the work required to draw each frame of an animation is done for you. You configure animation parameters such as the start and end points, and Core Animation does the rest, handing off most of the work to dedicated graphics hardware, to accelerate rendering. For more details, see Core Animation Programming Guide.
