Hi <@UNH9ZT3NZ>, an animation related inquiry. I c...

# compose

[elye]

Hi @Doris Liu, an animation related inquiry. I can’t seems to find any additional benefit of MutableStateTransition compare to normal mutableStateOf has to offer. It’s long to describe here, so I have put the inquiry on StackOverflow https://stackoverflow.com/questions/71033419/whats-the-use-of-mutablestatetransition-looks-like-mutablestateof-does-all-i. Hopes to get some insight from you. Thanks 🙏

[elye]

Thanks @Doris Liu for the answer. Excellent example indeed.

val currentState = remember {
        MutableTransitionState(BoxState.Collapsed).apply {
            targetState = BoxState.Expanded
        }
    }

makes full sense.

I think the example code in https://developer.android.com/jetpack/compose/animation#updateTransition should use the above instead of

// Start in collapsed state and immediately animate to expanded
var currentState = remember { MutableTransitionState(BoxState.Collapsed) }
currentState.targetState = BoxState.Expanded
val transition = updateTransition(currentState)
// ...