CustomAnimationExample.kt

@Composable
fun CustomAnimationExample() {
    val offset = remember { Animatable(0f) }
    val coroutineScope = rememberCoroutineScope()
    var isUpwards by remember { mutableStateOf(true) }

    Column {
        Button(onClick = {
            coroutineScope.launch {
                val target = if (isUpwards) 300f else 0f
                offset.animateTo(
                    targetValue = target,
                    animationSpec = tween(
                        durationMillis = 1000,
                        easing = LinearEasing
                    )
                )
                isUpwards = !isUpwards
            }
        }) {
            Text("Move It!")
        }
        Box(
            modifier = Modifier.offset(y = offset.value.dp)
        ) {
            Text("I'm moving!")
        }
    }
}