Core Animation for Fun and Profit
August 24, 2021 3:00 PM 3:40 PM Aspen Ballroom
Core Animation made UI on the original iPhone possible. It offloaded the heavy tasks to the GPU and also added beautiful animations. It is an out-of-process engine that takes the layer tree from our app, packages it, and renders it in a separate process while our app is running. The iOS app experience is unimaginable without animations because they provide a context to the user. Animations are either implicit, the default property changes, or explicit, our custom animations. Explicit animations come in four flavors: basic animations, keyframe animations, animation groups, and spring animations. All properties that can be numerically interpolated can become animatable. Non-numeric properties can use transitions.