Multiple back stacks NavigationBar

[Mohammad Mohammadi]

Hi
Please give me an example for NavigationBar with 4 tabs.
I want to create a multiple back stacks Navigation Bar and save current page and tabs page data when switch between those.
also when switch between tabs onResume event called. 👇

@Composable
fun OnResume(onResume: () -> Unit) {
    OnLifecycleEvent { event ->
        if (event == Lifecycle.State.Active) onResume()
    }
}

@Composable
fun OnLifecycleEvent(onEvent: (event: Lifecycle.State) -> Unit) {
    val eventHandler = rememberUpdatedState(onEvent)
    val lifecycleOwner = rememberUpdatedState(LocalLifecycleOwner.current)

    DisposableEffect(lifecycleOwner.value) {
        val lifecycle = lifecycleOwner.value.lifecycle

        val observer = object : LifecycleObserver {

            override fun onStateChanged(state: Lifecycle.State) {
                eventHandler.value(state)
            }
        }
        lifecycle.addObserver(observer)
        onDispose {
            lifecycle.removeObserver(observer)
        }
    }
}

Thank you.

[Tlaster]

Sorry I'm busying doing my own job and bug fixes for PreCompose and any other things, you can try to do this yourself or asking ChatGPT :)

[Mohammad Mohammadi]

Ok sorry 😢 good luck.
is PreCompose support Multiple back stacks?

 navController.navigate(screen.route) {
                            // Pop up to the start destination of the graph to
                            // avoid building up a large stack of destinations
                            // on the back stack as users select items
                            popUpTo(navController.graph.findStartDestination().id) {
                                saveState = true
                            }
                            // Avoid multiple copies of the same destination when
                            // reselecting the same item
                            launchSingleTop = true
                            // Restore state when reselecting a previously selected item
                            restoreState = true
                        }

[Tlaster]

PreCompose does support Nestesd NavHost with different Navigator.

[Mohammad Mohammadi]

PreCompose does support Nestesd NavHost with different Navigator.

Oh God

[Mohammad Mohammadi]

When do you anticipate adding it to the library?

[Tlaster]

PreCompose already support Nestesd NavHost with different Navigator.