How can I animate the height of a composable to 0.dp on some event, something like

shrinkVertically()

ExitTransition in

AnimatedVisibility

?

This is how it is implemented in AnimatedVisibility https://github.com/androidx/androidx/blob/5d2c0b74d83a90c8086c2b079524c1bdc94ebf99[…]onMain/kotlin/androidx/compose/animation/EnterExitTransition.kt But I think you don't need all of that and you can either use

Modifier.animateContentSize()

than just change the size of your component or

animateFloatAsState()

and map the 0-1 float to scale / offset