Fragment implementation guide UI after LiveData change in ViewModel during configuration change in Android 14
I'm optimizing some code but I'm sure I'm missing something obvious here, but I'm working on a personal project and I'm working with an scenario where my Fragment does not update the UI when the LiveData from the ViewModel changes, particularly after a configuration change like screen rotation..... I have a simple implementation where I'm observing LiveData but it seems to be losing the observer reference after orientation changes. Here's my setup: In my ViewModel, I have the following LiveData: ```kotlin class MyViewModel : ViewModel() { private val _data = MutableLiveData<String>() val data: LiveData<String> get() = _data fun updateData(newData: String) { _data.value = newData } } ``` In my Fragment, I'm observing this LiveData: ```kotlin class MyFragment : Fragment() { private lateinit var viewModel: MyViewModel override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { return inflater.inflate(R.layout.fragment_layout, container, false) } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) viewModel = ViewModelProvider(this).get(MyViewModel::class.java) viewModel.data.observe(viewLifecycleOwner, { updatedData -> // Assume textView is a TextView in the layout textView.text = updatedData }) } } ``` I initialize the data in `onActivityCreated` like this: ```kotlin viewModel.updateData("Initial Data") ``` The question arises when I rotate the screen; the `Fragment` seems to retain the UI state but does not reflect the updated LiveData. I don’t see any behavior messages, and the observer is set correctly. I've checked that `viewLifecycleOwner` is still valid after the rotation. I suspect that the Fragment is recreating but not properly re-attaching to the ViewModel's LiveData. Is there something more I need to do to ensure that the UI updates correctly after a configuration change? Any tips would be greatly appreciated! How would you solve this? Am I missing something obvious? My team is using Kotlin for this web app.