Strange Behavior When Using Room with Coroutines for Background Data Fetching in Android 13
Can someone help me understand I've been struggling with this for a few days now and could really use some help. I'm working with an scenario when trying to fetch data from a Room database using Kotlin coroutines in my Android 13 application. I have set up a DAO and a repository pattern, but when I try to retrieve a list of items, the UI does not update as expected. Instead, it sometimes shows a stale state or freezes. Here’s a simplified version of my DAO: ```kotlin @Dao interface ItemDao { @Query("SELECT * FROM items") suspend fun getAllItems(): List<Item> } ``` And here’s how I’m calling this in my ViewModel: ```kotlin class ItemViewModel(private val repository: ItemRepository) : ViewModel() { private val _items = MutableLiveData<List<Item>>() val items: LiveData<List<Item>> get() = _items fun fetchItems() { viewModelScope.launch { _items.value = repository.getAllItems() } } } ``` I've ensured that my Room database is set up correctly and that I call `fetchItems()` from the UI. The weird part is that if I call `fetchItems()` multiple times, the UI sometimes shows old data due to caching or some kind of race condition. I even tried adding `@Transaction` annotation to my DAO method, but that didn’t change anything. I have also validated that `getAllItems()` is returning the latest data by logging its output. I've looked into LiveData behavior and made sure that my observers are set up correctly, yet the UI is still not reflecting the current state of the database. I also checked if there's any question with my coroutine context, but everything seems to be in order. Any insights on what might be causing this scenario would be really helpful. Thank you! I'm working with Kotlin in a Docker container on Debian. I'm working in a Linux environment. Any feedback is welcome!