Reference index / 마이크로인터랙션·로딩 피드백
Shimmer
A repeating highlight that sweeps across an element surface.
When to use it
Showing ongoing activity on skeleton placeholders.
Caveats and distinctions
A motion effect usable without skeletons; it does not encode completion.
Implementation and classification
UI·UX 모션 / 마이크로인터랙션·로딩 피드백
Sources and verification status
https://developer.apple.com/design/human-interface-guidelines/motion
Source scope and verification status describe the existing catalog record. Publishing this page does not independently re-verify the latest library version, license, or production behavior.