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kotlinlang

I have a strange issue. ViewModel get data from db with a viewModelScope... after update a list in my uiStage model.. is a MutableStateFlow... when i put a brakpoint i see change while without brakpoint ui doesn/t change.

```viewModelScope.launch {
    var confirmedList = getItemsConfirmedByScodeUseCase.invoke()

    var groups = confirmedList.groupBy { it }
    var modules = uiState.value.modules
    modules.forEach {
        it.badge = ""
    }
    groups.forEach { op, list -&gt;
        modules.forEach {
            if (it.operationId == op) {
                it.badge = list.size.toString()
            }
        }
    }
    uiState.value = uiState.value.copy(
        modules = modules
    )
}```


modules is a list inside my
```val uiState = MutableStateFlow&lt;DashboardState&gt;(DashboardState(false))```


It looks like you are just editing the list items in place, rather than creating a new list instance with your updated data. Your copy() isn't actually doing anything useful here since `uiState.value.modules` is being changed out from underneath it, meaning your previous emission and new emission are `.equals()` to one another, which is why you don't get any state change in Compose

Generally, you'll want to avoid mutable items and mutable lists entirely when using StateFlow

i moved calculate badges before create Module list so.. i avoid use "`uiState.value.modules`"