Check if first time using the app during launch-CodePudding

I'm trying to implement a first time using screen (like any other app when you have to fill some options before using the app for the first time). I can't go to another Jetpack compose on an main activity on-create state because it check that every recomposition, and take me to the navigation path (I'd like to check the datastore entry once during launch), this what I already try, not seem to be working:

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        lifecycleScope.launch {
            val onBoardingStatus = dataStoreManager.onBoard.first()
            setContent {
                val navController = rememberNavController()
                OnBoardingNavHost(navController)
                navController.navigate(if (onBoardingStatus) "on_boarding" else "main") {
                    launchSingleTop = true
                    popUpTo(0)
                }
            }
        }
    }

it is possible to check that only once (in application class for example and not in oncreate?) please advice, thanks in advance

CodePudding user response：

You have to use LaunchedEffect for this, you can do something like this

enum class OnboardState {
    Loading,
    NoOnboarded,
    Onboarded,
}

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContent {
        var onboardingState by remember {
            mutableStateOf(OnboardState.Loading)
        }
        LaunchedEffect(Unit) {
            onboardingState = getOnboardingState()
        }
        when (onboardingState) {
            OnboardState.Loading -> showSpinner()
            OnboardState.NoOnboarded -> LaunchedEffect(onboardingState) {
                navigateToOnboarding()
            }
            OnboardState.Onboarded -> showContent()
        }
    }
}