Modifier Run Block

WithRunBlock

@Composable
fun WithRunBlock() {
    var isExpanded by remember {
        mutableStateOf(true)
    }

    Box(
        modifier = Modifier
            .height(50.dp)
            .run {
                if (isExpanded) {
                    isExpanded = false
                    fillMaxWidth()
                } else {
                    fillMaxWidth(0.5f)
                }
            }
            .background(Color.Red)
    )
}