DataStoreExt.kt

fun <T> DataStore<Preferences>.getValueFlow(
    key: Preferences.Key<T>,
    defaultValue: T,
): Flow<T> {
    return this.data
        .catch { exception ->
            if (exception is IOException) {
                emit(emptyPreferences())
            } else {
                throw exception
            }
        }.map { preferences ->
            preferences[key] ?: defaultValue
        }
}