compose navigation custom navType

NavigationComponent にて、画面遷移時に任意のデータクラスを渡したい場合、カスタムNavTypeを定義して受け渡しを可能にする必要がある。

  composable<SelectFavoriteTeamRoute>(
        typeMap = mapOf(
            typeOf<QuestionnaireModel.Gender>() to NavType.EnumType(QuestionnaireModel.Gender::class.java),
            typeOf<QuestionnaireModel.Prefecture>() to NavType.EnumType(QuestionnaireModel.Prefecture::class.java),
            typeOf<QuestionnaireUIModel.Year?>() to CustomNavType.YearNavType,
            typeOf<QuestionnaireUIModel.Month?>() to CustomNavType.MonthNavType,
        ),
    ) { backEntry ->
        val args = backEntry.toRoute<SelectFavoriteTeamRoute>()
        Timber.d("${args.gender}, ${args.prefecture}, ${args.year}, ${args.month}")
        SelectFavoriteTeamScreen(
            navigateToHome = navController::navigationToHome,
            onBackClick = navController::navigateUp,
        )
    }

object CustomNavType {
    val YearNavType: NavType<QuestionnaireUIModel.Year?> =
        object : NavType<QuestionnaireUIModel.Year?>(isNullableAllowed = true) {
            override fun get(bundle: Bundle, key: String): QuestionnaireUIModel.Year? {
                return Json.decodeFromString(bundle.getString(key) ?: return null)
            }

            override fun parseValue(value: String): QuestionnaireUIModel.Year? = Json.decodeFromString(UriCodec.decode(value))

            override fun put(bundle: Bundle, key: String, value: QuestionnaireUIModel.Year?) {
                bundle.putString(key, Json.encodeToString(value))
            }

            override fun serializeAsValue(value: QuestionnaireUIModel.Year?): String = UriCodec.encode(Json.encodeToString(value))
        }

    val MonthNavType: NavType<QuestionnaireUIModel.Month?> =
        object : NavType<QuestionnaireUIModel.Month?>(isNullableAllowed = true) {
            override fun get(bundle: Bundle, key: String): QuestionnaireUIModel.Month? {
                return Json.decodeFromString(bundle.getString(key) ?: return null)
            }

            override fun parseValue(value: String): QuestionnaireUIModel.Month? = Json.decodeFromString(UriCodec.decode(value))

            override fun put(bundle: Bundle, key: String, value: QuestionnaireUIModel.Month?) {
                bundle.putString(key, Json.encodeToString(value))
            }

            override fun serializeAsValue(value: QuestionnaireUIModel.Month?): String = UriCodec.encode(Json.encodeToString(value))
        }
}

   @Serializable
    data class Year(val number: Int, val displayName: String, val isSelected: Boolean)