Fragment Layout Not Updating After Returning from Another Fragment in Android Navigation Component
I am experiencing an issue with my Fragment layout not updating when I navigate back to it using the Android Navigation Component. When I navigate from Fragment A to Fragment B and then return to Fragment A, the layout remains static and does not reflect changes made. I am using `ViewModel` for state management, but it seems the UI is not being redrawn properly. Here is a simplified version of my code for Fragment A: ```kotlin class FragmentA : Fragment() { private lateinit var viewModel: MyViewModel override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { viewModel = ViewModelProvider(this).get(MyViewModel::class.java) return inflater.inflate(R.layout.fragment_a, container, false) } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) viewModel.data.observe(viewLifecycleOwner, Observer { data -> // Update UI elements with new data textView.text = data }) } } ``` In my ViewModel: ```kotlin class MyViewModel : ViewModel() { private val _data = MutableLiveData<String>() val data: LiveData<String> get() = _data fun updateData(newData: String) { _data.value = newData } } ``` When I navigate from Fragment A to Fragment B: ```kotlin // In Fragment A findNavController().navigate(R.id.action_fragmentA_to_fragmentB) ``` In Fragment B, I am updating the ViewModel data: ```kotlin class FragmentB : Fragment() { private lateinit var viewModel: MyViewModel override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View? { viewModel = ViewModelProvider(requireActivity()).get(MyViewModel::class.java) // Simulating data update viewModel.updateData("New Data from Fragment B") return inflater.inflate(R.layout.fragment_b, container, false) } } ``` When I return to Fragment A, the textView does not reflect 'New Data from Fragment B'. I added log statements in the `onViewCreated` method of Fragment A, and they confirm that the observer does not trigger. I've also tried calling `viewModel.updateData()` before returning to Fragment A, but it didn't help. Is there a specific lifecycle handling I might be missing here, or is there a better approach to ensure that the UI updates when returning from another Fragment?