Foundations/Animations

Animation System

SwiftDS uses physics-based spring animations for natural, responsive interactions. All animations respect the user's Reduce Motion accessibility setting.

Animation Presets

DSAnimation.interactive

Snappy spring (0.3s response, 0.7 damping)

Buttons, toggles, interactive elements

DSAnimation.smooth

Smooth spring (0.45s response, 0.8 damping)

Modals, sheets, overlays

DSAnimation.gentle

Gentle spring (0.6s response, 0.85 damping)

List inserts, layout changes

DSAnimation.fade

Quick easeOut (0.2s duration)

Opacity transitions, fade effects

DSAnimation.pulse

Slow breathe (1.0s easeInOut, repeating)

Skeleton loaders, pulse effects

Usage

Example

import SwiftUI

Button("Tap me") {
    isPressed.toggle()
}
.scaleEffect(isPressed ? 0.95 : 1.0)
.animation(.interactive, value: isPressed)

// For layout changes
VStack {
    if showDetails {
        DetailView()
            .transition(.opacity)
    }
}
.animation(.gentle, value: showDetails)

Spring Physics

Spring animations use response (duration) and damping (bounciness) parameters:

•Response: How quickly the animation reaches its target
•Damping: How much bounce (lower = more bounce)
•Interactive elements use lower response for snappiness
•Overlays use higher damping for smoothness