Hey, i was trying out

Transition

in Compose, and had couple of questions. First is about

transitionDefinition

- i see that it’s an equivalent of value animator (correct me if i’m wrong). Is there a way to set the duration to it, and delay before the start? Second is about the

Transition

composable - is there a way to start the transition based on the user event (e.g., click)? Any hints/suggestions would be appreciated! 🙂

This article has examples of the various animation builders - there are a few that let you specify duration: https://proandroiddev.com/animations-in-jetpack-compose-using-transition-25d5d2143401 You can look at the API reference for more information: https://developer.android.com/reference/kotlin/androidx/animation/TweenBuilder Transition animations are controlled by state changes, so to start an animation on a click, your click handler should change some state (e.g in a

@Model

or a

state {}

. There are lots of examples of this in the framework, take a look at the implementation of any UI control that animates itself (eg.

Modifier.ripple

, radio buttons, I think Slider might use them).

thanks i’ve check the medium article before that. I was trying to use

angle using tween

as specified in the article, but

angle

gets highlighted as an unresolved reference. Have you tried it before?

did you try:

private val angle = FloatPropKey()

thanks that worked! 👍