사용 방법
- 설치 명령을 복사하고 자신의 에이전트 환경에 설치하기 전에 소스 패키지를 확인하세요.
- 필요한 도구, 인증 정보, 지원 환경은 원본 문서에서 확인하세요.
- 입력과 원하는 산출물을 설명하고 출처와 결과를 대조하세요.
npx skills add https://github.com/prisma-labs-dev/apple-skills --skill core-animation시작 전 확인
- 설치에는 모델 구독, API 한도, 파일 접근 권한이 포함되지 않습니다.
- 별점 수와 설치 수는 활동 지표이며 독립적인 품질·보안 검증이 아닙니다.
원본 Skill 문서
원본 저장소의 제목, 예시, 코드, 표, 링크, 이미지를 유지해 표시합니다.
Core Animation Reference
Search these docs to answer questions about Core Animation (the QuartzCore framework). Use this skill when working directly with CALayer, layer-backed UIKit/AppKit views, explicit keyframe or spring animations on layer properties, particle systems, or per-frame callbacks via CADisplayLink.
For SwiftUI's declarative animation API (withAnimation, Animation, .animation(_:value:), transitions), use Apple's swiftui-specialist skill (its animations reference) instead. For SwiftUI immediate-mode drawing, use swiftui/canvas.md and swiftui/graphicscontext.md.
Return Format
Always include:
- Summary — answer the question concisely.
- File paths — list relevant files for full details, e.g.:
calayer.mdfor layer geometry, contents, hierarchycabasicanimation.mdfor animating a single property between two valuescatransaction.mdfor batching, disabling implicit animations, or changing default duration
Files
| File | Content |
|---|---|
core-animation-index.md | Full QuartzCore framework index — layer basics, animation classes, transactions, layer subclasses |
calayer.md | CALayer — the root layer class: geometry, contents, hierarchy, layout, animations |
caanimation.md | CAAnimation — abstract base class for all Core Animation animation types |
capropertyanimation.md | CAPropertyAnimation — abstract subclass animating a single layer property |
cabasicanimation.md | CABasicAnimation — interpolate a layer property between two values |
cakeyframeanimation.md | CAKeyframeAnimation — animate a property through a sequence of keyframes |
caspringanimation.md | CASpringAnimation — spring-based interpolation with mass, stiffness, damping |
caanimationgroup.md | CAAnimationGroup — run multiple animations together with a shared duration |
catransition.md | CATransition — fade, push, reveal, and move-in transitions between layer states |
camediatiming.md | CAMediaTiming — protocol shared by layers and animations (beginTime, duration, repeat, speed) |
catransaction.md | CATransaction — batch property changes, disable implicit animations, set default duration/timing |
catransform3d.md | CATransform3D — 4×4 matrix used by CALayer.transform for 3D transforms |
cashapelayer.md | CAShapeLayer — vector-shape layer driven by a CGPath (stroke, fill, line dash) |
cagradientlayer.md | CAGradientLayer — axial, radial, and conic gradient layers |
caemitterlayer.md | CAEmitterLayer — particle emitter layer (fire, smoke, confetti, sparkles) |
caemittercell.md | CAEmitterCell — individual particle definition used by CAEmitterLayer |
careplicatorlayer.md | CAReplicatorLayer — replicate a sublayer with offsets and transforms |
cametallayer.md | CAMetalLayer — layer backed by a Metal drawable for GPU-rendered content |
catextlayer.md | CATextLayer — layer that renders plain or attributed text |
catiledlayer.md | CATiledLayer — tile-based asynchronous content rendering for large or zoomable layers |
cadisplaylink.md | CADisplayLink — timer synchronized to the display's refresh rate |
When to Reach for Core Animation
- You need to animate a layer property SwiftUI/UIKit doesn't expose declaratively (e.g.,
CAGradientLayer.colors,CAShapeLayer.strokeEnd,CAEmitterLayer.birthRate). - You need explicit keyframe or spring control with timing functions (
CAMediaTimingFunction) per segment. - You want to batch implicit animations off (
CATransaction.setDisableActions(true)). - You need a
CADisplayLinkper-frame callback (custom drawing loops, scrubbing, physics). - You're rendering thousands of particles with
CAEmitterLayeror replicating sublayers withCAReplicatorLayer.
If your problem fits inside withAnimation { ... } in SwiftUI or UIView.animate { ... } in UIKit, prefer those — Core Animation sits underneath both and is rarely the right starting point in 2026-era code.
Fetching More Docs
- Search this skill's local
.mdfiles first. - If the topic is not here, check the other installed Apple skills, then grep their local files.
- If no installed skill has the page, the QuartzCore path on Apple's site is
/documentation/quartzcore/<symbol>— fetch via thesosumi.aiMarkdown mirror (e.g.https://sosumi.ai/documentation/quartzcore/camediatimingfunction) or by runningpnpm fetch-docagainst the apple-skills tooling.
