👀 Views: 2 💬 Answers: 1 📅 Created: 2025-06-08

android livedata viewmodel memory-leak Kotlin

This might be a silly question, but I'm experiencing a memory leak in my Android 14 application when using LiveData with a custom ViewModel. I've set up my ViewModel to observe a LiveData object from my Fragment, but it seems that the Fragment isn't being garbage collected after it is removed from the back stack. I've implemented the following code in my Fragment: ```kotlin class MyFragment : Fragment() { private lateinit var viewModel: MyViewModel override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { viewModel = ViewModelProvider(this).get(MyViewModel::class.java) viewModel.myLiveData.observe(viewLifecycleOwner, Observer { data -> // Update UI with data }) return inflater.inflate(R.layout.fragment_my, container, false) } } ``` In my ViewModel, I have the following LiveData object that gets populated: ```kotlin class MyViewModel : ViewModel() { val myLiveData = MutableLiveData<String>() init { // Simulating data fetch myLiveData.value = "Data fetched" } } ``` After navigating away from `MyFragment`, I checked for leaks using LeakCanary and it reports that `MyFragment` is still holding a reference to `MyViewModel`. I've tried changing the observer to use `viewLifecycleOwner`, but the issue persists. I'm unsure how to properly detach the observer or if there's a better approach to managing LiveData with ViewModels to avoid this memory leak. Any suggestions on resolving this issue would be greatly appreciated! Any help would be greatly appreciated!