Modifier.pressScale¶

Scales the receiver down on press and springs it back to its original size on release.

When to use¶

Tap targets that need an immediate, tactile response (cards, tiles, large buttons).
Anywhere you want a "pushed-in" feel without committing to a Material 3 ripple.

When not to use¶

Inside lists where every row already animates (you'll fight existing motion).
On composables with a clickable indication that already animates scale or elevation; pick one source of motion.

Usage¶

Box(
    modifier = Modifier
        .size(96.dp)
        .pressScale()
        .clip(RoundedCornerShape(16.dp))
        .background(Color(0xFF6750A4))
        .clickable { onClick() },
)

Tighter shrink for primary CTAs:

Modifier.pressScale(scale = 0.9f)

Parameters¶

Name	Type	Default	Notes
`scale`	`Float`	`0.96f`	Target scale while pressed. Must be in `(0f, 1f]`.
`animationSpec`	`AnimationSpec<Float>`	medium-bouncy spring	Spring used for both shrink and recover.

Design notes¶

Node subtype: LayoutModifierNode + PointerInputModifierNode. Pointer events drive a single long-lived Animatable<Float>. The scale is applied at placement time via placeWithLayer { … } rather than during draw(), which is cheaper and lets the layer system batch transforms.
Update vs. recreate: changing scale while the node is attached re-targets any in-flight animation rather than recreating the node, so you can drive scale from state without dropping animation continuity.
Cancellation: onCancelPointerInput and onDetach both reset to 1f so a touch interrupted by a parent gesture or by leaving composition doesn't leave the layer stuck shrunk.
No Indication interaction: the modifier observes pointer events with PointerEventPass.Main but does not consume them. Stack it with clickable freely.