public enum AsyncUpdates

                    

**Note: this API is experimental and may changed.**

When async updates are enabled, parts of animation updates will happen off of the main thread. At a high level, during the animation loop, there are two main code paths: 1. setProgress 2. draw setProgress is called on every frame when the internal animator updates or if you manually call setProgress. setProgress must then iterate through every single node in the animation (every shape, fill, mask, stroke, etc.) and call setProgress on it. When progress is set on a node, it will: 1. Call the dynamic property value callback if one has been set by you. 2. Recalculate what its own progress is. Various animation features like interpolators or time remapping will cause the progress value for a given node to be different than the top level progress. 3. If a node's progress has changed, it will call invalidate which will invalidate values that are cached and derived from that node's progress and then bubble up the invalidation to LottieDrawable to ensure that Android renders a new frame. draw is what actually draws your animation to a canvas. Many of Lottie's operations are completed or cached in the setProgress path. However, there are a few things (like parentMatrix) that Lottie only has access to in the draw path and it, of course, needs to actually execute the canvas operations to draw the animation. Without async updates, in a single main thread frame, Lottie will call setProgress immediately followed by draw. With async updates, Lottie will determine if the most recent setProgress is still close enough to be considered valid. An existing progress will be considered valid if it is within LottieDrawable.MAX_DELTA_MS_ASYNC_SET_PROGRESS milliseconds from the current actual progress. If the calculated progress is close enough, it will only execute draw. Once draw completes, it will schedule a setProgress to be run on a background thread immediately after draw finishes and it will likely complete well before the next frame starts. The background thread is created via LottieDrawable.setProgressExecutor. You can refer to it for the current default thread pool configuration.