This is a dialog fragment that inflates a xml file. This dialog fragment will then be used in another fragment as a pop up.

I am trying to override the back button where the back button should not close/dismiss the dialog fragment. it should only passes a live data through a view model and toast a message “Back Button Pressed! You can’t exit at here”.

Currently when i pressed the back button, the dialog fragment will still dismiss. How can i solve this issue?

class MsicUpdateLater : DialogFragment() {

    private val sharedViewModel: BrnViewModel by activityViewModels()

    private lateinit var backPressedCallback: OnBackPressedCallback

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setStyle(STYLE_NORMAL, R.style.FullWidthSheetDialog)

        backPressedCallback = object : OnBackPressedCallback(true) {
            override fun handleOnBackPressed() {
                // is this the right way?
                Toast.makeText(requireContext(), "Back Button Pressed! You can't exit at here", Toast.LENGTH_SHORT).show()
                sharedViewModel.msicDialogFragment()
            }
         }
        requireActivity().onBackPressedDispatcher.addCallback(this, backPressedCallback)
    }

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.brn_tin_update_later_pop_up, container, false)
    }

    override fun onDestroyView() {
        super.onDestroyView()
        backPressedCallback.remove()
    }
}