MainActivity.kt

@OptIn(ExperimentalLifecycleComposeApi::class)
    @Composable
    private fun App() {
        ...

        NavHost(navController = navController, startDestination = Destinations.Home.route) {
            // main screen
            ...

            // details screen
            ...

            // adding user screen
            composable(
                route = Destinations.AddNewUser.route,
                deepLinks = listOf(
                    navDeepLink {
                        with(this@MainActivity) {
                            val scheme = getString(R.string.scheme)
                            val host = getString(R.string.host)
                            val path = getString(R.string.path_to_add_user)
                            val uri =
                                "$scheme://$host$path?name={name}&desc={desc}&joinedYear={joinedYear}&isElite={isElite}"
                            uriPattern = uri
                        }
                    }
                ),
            ) { navBackStaceEntry ->
                val name = navBackStaceEntry.arguments?.getString("name").orEmpty()
                val desc = navBackStaceEntry.arguments?.getString("desc").orEmpty()
                val joinedYear = navBackStaceEntry.arguments?.getString("joinedYear")?.toInt() ?: 0
                val isElite = navBackStaceEntry.arguments?.getString("isElite").toBoolean()
                val userToBeAdded = User(0, name, desc, joinedYear, isElite)
                AddUserScreen(userToBeAdded) { newUser ->
                    viewModel.addNewUser(newUser)
                    navController.popBackStack(Destinations.Home.route, false)
                }
            }
        }
    }