Accessibility works seamlessly in ways that even UIKit doesn’t provide. When using the powerful optimization features of Layer Backing (
.layerBacked) and Subtree Rasterization (
.shouldRasterizeDescendants), VoiceOver can access fine-grained metadata about each element. This is pretty amazing:
CALayer doesn’t support accessibility, and rasterization reduces everything to a single flat image.
The AsyncDisplayKit team fundamentally believes in Accessibility, and invested the time to create an innovative system to make this possible with zero developer effort. As a bonus, this also allows Automated UI Testing greater access to the interface.