NavigationActivity.kt

class NavigationActivity : ComponentActivity() {

    private val userViewModel: UserViewModel by viewModel()
    private val networkConnection: NetworkConnection by inject()

    @SuppressLint("FlowOperatorInvokedInComposition", "StateFlowValueCalledInComposition")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            val navController = rememberNavController()
            KtorCRUDTheme {
                val networkStatus = networkConnection.networkStatus

                LaunchedEffect(key1 = Unit) {
                    networkStatus.collect { isOffline ->
                        userViewModel.updateStartRoute(if (isOffline) ShowData else NoInternet)
                    }
                }
                val startRoute by userViewModel.startRoute.collectAsState()
                NavigationComponent(navController, startRoute)
            }
        }
    }

    @Composable
    private fun NavigationComponent(
        navController: NavHostController,
        startRoute: Any
    ) {
        NavHost(navController = navController, startDestination = startRoute) {
            composable<NoInternet> {
                ShowNoInternetStatus()
            }
            composable<ShowData> {
                LoadUsers(userViewModel) { data ->
                    navController.navigate(ShowIndividualData(data))
                }
            }
            composable<ShowIndividualData> {
                val args = it.toRoute<Data>()
                ClickActivity(args)
            }
        }
    }
}