Is there a way to leverage

remember

in combination with Proto DataStores? I've defined my

DataStore

:

val Context.dataStore: DataStore<AppPreferences> = dataStore(serializer = ..., ...)

However, I would like to have a way to fetch single values inside composables:

@Composable
fun SomeUI() {
    val context = LocalContext.current
    var userFontSize by remembe { context.dataStore.data.fontSize } // or something similar

    // Re-composition happens if the value changes for some reason. And it also gets stored if the var changes.
}

It's easy to do with a

SharedPreferences

-backed

DataStore

since I can use keys to fetch the value and set it. But I am not sure how to do it with Protobufs.

You should be able to observe the data store's flow with

collectAsState

or

produceState

collectAsState

only makes is so I can keep up-to-date with it being changed externally. And I do not see how

produceState

helps me here. Isn't that function meant for data that, without any influence, changes? Like timers. I just don't see how I can use it to update my data store when I assign a new value:

userFontSize = 12

.

When you edit your DataStore the flows automatically emit the new value. So if you start collecting that flow with either way that Adam suggests you will receive the latest value when it changes.