相关疑难解决方法(0)

我正在为我的应用程序开发购物车功能。我希望分别添加/减少 LazyColumn 中每个列表项的数量。我只使用一个“记住”，因此如果我单击添加/减少，它们都会同时更新。如何单独控制每个项目？

截屏

@Composable
fun InventoryCartScreen(
    mainViewModel: MainViewModel = hiltViewModel()
) {

    val multiSelectValue = mutableStateOf(0)// This is the value I want to change

//random list
val shopList = listOf(
        ShoppingList(id = 0,itemNumber = "1",itemDescription = "1",currentInventory = 0,optimalInventory = 0,minInventory = 0),
        ShoppingList(id = 0,itemNumber = "2",itemDescription = "2",currentInventory = 0,optimalInventory = 0,minInventory = 0)
    )

    Column(...) {
       LazyColumn(...) {
            items(items = shopList, key = { it.id }) { item ->
                InventoryCartScreenContents(
                    onaddClick= { multiSelectValue.value ++ }, //adds …