AnimationSpec

Configure how animations behave over time.

AnimationSpec Types

Spec	Description
`tween()`	Duration-based with easing
`spring()`	Physics-based spring animation
`keyframes()`	Define values at specific times
`snap()`	Instant change, no animation
`infiniteRepeatable()`	Loops forever
`repeatable()`	Loops N times

Tween Animation

animateFloatAsState(
    targetValue = 1f,
    animationSpec = tween(
        durationMillis = 300,
        delayMillis = 50,
        easing = FastOutSlowInEasing
    )
)

Spring Animation

animateFloatAsState(
    targetValue = if (expanded) 1f else 0f,
    animationSpec = spring(
        dampingRatio = Spring.DampingRatioMediumBouncy,
        stiffness = Spring.StiffnessLow
    )
)

Spring Constants

DampingRatio	Description
`DampingRatioHighBouncy`	0.2 - Very bouncy
`DampingRatioMediumBouncy`	0.5 - Medium bounce
`DampingRatioLowBouncy`	0.75 - Low bounce
`DampingRatioNoBouncy`	1.0 - No bounce

Stiffness	Description
`StiffnessHigh`	Fast
`StiffnessMedium`	Medium
`StiffnessMediumLow`	Medium-slow
`StiffnessLow`	Slow
`StiffnessVeryLow`	Very slow

Keyframes Animation

animateFloatAsState(
    targetValue = 1f,
    animationSpec = keyframes {
        durationMillis = 1000
        0f at 0 using LinearEasing
        0.5f at 500
        1f at 1000
    }
)

Easing Types

Easing	Description
`LinearEasing`	Constant speed
`FastOutSlowInEasing`	Accelerate then decelerate (default)
`FastOutLinearInEasing`	Fast start, linear end
`LinearOutSlowInEasing`	Linear start, slow end
`EaseInOutCubic`	Smooth start and end