mobile-touch
Use when designing iOS/Android gestures, haptic feedback, touch interactions, or native mobile animations.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/dylantarre/animation-principles --skill mobile-touch- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads mobile-touch automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Mobile Touch Animation
Apply Disney's 12 animation principles to mobile gestures, haptics, and native app motion.
Quick Reference
| Principle | Mobile Implementation |
|---|---|
| Squash & Stretch | Rubber-banding, bounce on scroll limits |
| Anticipation | Peek before reveal, long-press preview |
| Staging | Sheet presentations, focus states |
| Straight Ahead / Pose to Pose | Gesture-driven vs preset transitions |
| Follow Through / Overlapping | Momentum scrolling, trailing elements |
| Slow In / Slow Out | iOS spring animations, Material easing |
| Arc | Swipe-to-dismiss curves, card throws |
| Secondary Action | Haptic pulse with visual feedback |
| Timing | Touch response <100ms, transitions 250-350ms |
| Exaggeration | Bounce amplitude, haptic intensity |
| Solid Drawing | Respect safe areas, consistent anchors |
| Appeal | 60fps minimum, gesture continuity |
Principle Applications
Squash & Stretch: Implement rubber-band effect at scroll boundaries. Pull-to-refresh should stretch content naturally. Buttons compress on touch.
Anticipation: Long-press shows preview before full action. Drag threshold provides visual hint before item lifts. Swipe shows edge of destination content.
Staging: Use sheet presentations to maintain context. Dim and scale background during modal focus. Hero transitions connect views meaningfully.
Straight Ahead vs Pose to Pose: Gesture-following animations (drag, pinch) are straight ahead—driven by touch input. System transitions (push, present) are pose to pose—predefined keyframes.
Follow Through & Overlapping: Content continues moving after finger lifts (momentum). Navigation bar elements animate slightly after main content. Lists items settle with stagger.
Slow In / Slow Out: iOS uses spring physics—configure mass, stiffness, damping. Android Material uses standard easing: FastOutSlowIn. Never use linear for user-initiated motion.
Arc: Thrown cards follow parabolic arcs. Swipe-to-dismiss curves based on velocity vector. FAB expand/collapse follows natural arc path.
Secondary Action: Pair haptic feedback with visual response. Button ripple accompanies press. Success checkmark triggers light haptic.
Timing: Touch acknowledgment: <100ms. Quick actions: 150-250ms. View transitions: 250-350ms. Complex animations: 350-500ms. Haptic should sync precisely with visual.
Exaggeration: Pull-to-refresh stretches beyond natural—makes feedback clear. Error shake is pronounced. Success animations celebrate appropriately.
Solid Drawing: Respect device safe areas during animation. Maintain consistent transform origins. Account for notch/dynamic island in motion paths.
Appeal: Minimum 60fps, target 120fps on ProMotion displays. Gesture-driven animation must feel connected to finger. Interruptible animations essential.
Platform Patterns
iOS
// Spring animation with follow-through
UIView.animate(withDuration: 0.5,
delay: 0,
usingSpringWithDamping: 0.7,
initialSpringVelocity: 0.5,
options: .curveEaseOut)
// Haptic pairing
let feedback = UIImpactFeedbackGenerator(style: .medium)
feedback.impactOccurred()
Android
// Material spring animation
SpringAnimation(view, DynamicAnimation.TRANSLATION_Y)
.setSpring(SpringForce()
.setStiffness(SpringForce.STIFFNESS_MEDIUM)
.setDampingRatio(SpringForce.DAMPING_RATIO_MEDIUM_BOUNCY))
.start()
Haptic Guidelines
| Action | iOS | Android |
|---|---|---|
| Selection | .selection | EFFECT_TICK |
| Success | .success | EFFECT_CLICK |
| Warning | .warning | EFFECT_DOUBLE_CLICK |
| Error | .error | EFFECT_HEAVY_CLICK |
Haptics are secondary action—always pair with visual confirmation.
FAQ
What does the mobile-touch skill do?
Use when designing iOS/Android gestures, haptic feedback, touch interactions, or native mobile animations.
How do I install mobile-touch?
Run npx skills add https://github.com/dylantarre/animation-principles --skill mobile-touch in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/mobile-touch/ (personal) or .claude/skills/mobile-touch/ (project).
Which AI agents can use mobile-touch?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is mobile-touch safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains mobile-touch?
It is published by dylantarre in dylantarre/animation-principles. It has 2,380 recorded installs.
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