CurrenciesScreenAndCard.kt

@Composable
fun CurrenciesScreen(viewModel: CurrenciesViewModel) {
    val currencyPrices by viewModel.currencyPrices.collectAsStateWithLifecycle()
    LazyColumn {
        itemsIndexed(currencyPrices) { index, currencyPrice ->
            CurrencyPriceCard(
                currencyPrice = currencyPrice,
                onActive = { viewModel.onCardActive(currencyPrice.id, index) },
                onDisposed = { viewModel.onCardDisposed(currencyPrice.id) })
        }
    }
}

@Composable
fun CurrencyPriceCard(
    currencyPrice: CurrencyPrice,
    onActive: () -> Unit,
    onDisposed: () -> Unit,
) {
    LaunchedEffect(Unit) { onActive() }
    DisposableEffect(Unit) { onDispose { onDisposed() } }
    CurrencyCard(currencyPrice.name, "${currencyPrice.price}", currencyPrice.priceFluctuation)
}