android - ユーザー名のデータを更新すると、プロト バフ データストアが機能しません。問題は 1 つのフラグメントにのみ存在します。

Question

データを更新すると、私のプロト バフ データストアが機能しません。問題は 1 つのフラグメントにのみ存在します。

@AndroidEntryPoint クラス Otp :Fragment(){

val args: OtpArgs by navArgs()

private val Context.userDataStore: DataStore<UserPreferences> by dataStore(
    fileName = DATA_STORE_FILE_NAME,
    serializer = UserPreferencesSerializer
)


companion object {
    private const val USER_PREFERENCES_NAME = "user_preferences"
    private const val DATA_STORE_FILE_NAME = "user_prefs.pb"
    private const val SORT_ORDER_KEY = "sort_order"


}
private val otpViewModel: OtpViewModel by navGraphViewModels(R.id.login_nav) {defaultViewModelProviderFactory}
private lateinit var otpFragBinding: OtpFragBinding
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

}
override fun onCreateView(
    inflater: LayoutInflater, container: ViewGroup?,
    savedInstanceState: Bundle?
): View? {
    otpFragBinding = OtpFragBinding.inflate(inflater, container, false).apply {
        signupviewmodel = otpViewModel
        lifecycleOwner = viewLifecycleOwner

    }

    setUpOtp(args.username.toString())
    setupSnackbar()
    setupToolbar()
    return otpFragBinding.root
}
fun setupToolbar(){
    requireActivity().appBarLayout.visibility = View.GONE
}
private fun setupSnackbar() {
    view?.setupSnackbar(this, otpViewModel.snackbarText, Snackbar.LENGTH_SHORT)
}
private fun setUpOtp(arg:String) {
    otpViewModel.navigated.observe(
        viewLifecycleOwner, EventObserver{
            updateUsername(arg)
            findNavController().navigate(R.id.mainFragment)



        })
}

fun updateUsername(username:String) {
    lifecycleScope.launch {
        requireActivity().userDataStore.updateData {
                preferences ->
            preferences.toBuilder().setUsername(username).build()
        }

    }


  }
}