Navigating Fragment Lifecycle implementing ViewPager2 and Dagger Hilt in Android 14
I'm experimenting with I'm confused about I'm trying to implement I'm working with a frustrating scenario with Fragment lifecycle management when using ViewPager2 in combination with Dagger Hilt for dependency injection in my Android 14 application... My setup involves a ViewPager2 that hosts multiple Fragments, and I've noticed that sometimes when I swipe between the Fragments, I get a `NullPointerException` when accessing a ViewModel that was injected via Dagger Hilt. In particular, the behavior appears when I attempt to access a property from the ViewModel in the `onViewCreated` method of my Fragment. The stack trace points to a line in the ViewModel, indicating that the instance is somehow null even though it should be injected by Hilt. Here's a simplified version of my Fragment setup: ```kotlin @AndroidEntryPoint class MyFragment : Fragment(R.layout.fragment_my) { private val viewModel: MyViewModel by viewModels() override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) viewModel.someLiveData.observe(viewLifecycleOwner) { data -> // Use data } } } ``` And my ViewModel looks like this: ```kotlin @HiltViewModel class MyViewModel @Inject constructor( private val repository: MyRepository ) : ViewModel() { val someLiveData = MutableLiveData<String>() init { // Simulating data fetch someLiveData.value = repository.getData() } } ``` I’ve checked that Hilt is correctly set up in my project, and I'm using the latest version of the Hilt library. The `NullPointerException` seems to occur sporadically, and I suspect it might be related to the Fragment lifecycle not being completely managed by the ViewPager2. I tried implementing `setOffscreenPageLimit(1)`, but the scenario continues. Is there a known scenario with Hilt and Fragment lifecycle when used in conjunction with ViewPager2, or might I be missing something in my implementation? Any insights or suggestions would be greatly appreciated! This is part of a larger web app I'm building. I'm working in a Linux environment. I'm open to any suggestions. For reference, this is a production CLI tool. I appreciate any insights!