TestNavHostController

Kotlin |Java

class TestNavHostController : NavHostController

kotlin.Any
↳	androidx.navigation.NavController
	↳	androidx.navigation.NavHostController
		↳	androidx.navigation.testing.TestNavHostController

Subclass of NavHostController that offers additional APIs for testing Navigation.

Summary

Inherited constants

From class NavController

String

KEY_DEEP_LINK_INTENT

The Intent that triggered a deep link to the current destination.

Public constructors
`<init>(context: Context)` Subclass of NavHostController that offers additional APIs for testing Navigation.

Public methods
Unit	`setCurrentDestination(@IdRes destId: Int, args: Bundle = Bundle())` Navigate directly to any destination on the current androidx.navigation.NavGraph via an explicit deep link.

Inherited functions

From class NavController

`Unit`	`addOnDestinationChangedListener(@NonNull listener: NavController.OnDestinationChangedListener)` Adds an `OnDestinationChangedListener` to this controller to receive a callback whenever the `getCurrentDestination()` or its arguments change. The current destination, if any, will be immediately sent to your listener.
`NavDeepLinkBuilder`	`createDeepLink()` Create a deep link to a destination within this NavController.
`NavBackStackEntry`	`getBackStackEntry(@IdRes destinationId: Int)` Gets the topmost `NavBackStackEntry` for a destination id. This is always safe to use with `the current destination` or `its parent` or grandparent navigation graphs as these destinations are guaranteed to be on the back stack.
`NavBackStackEntry?`	`getCurrentBackStackEntry()` Gets the topmost `NavBackStackEntry`.
`NavDestination?`	`getCurrentDestination()` Gets the current destination.
`NavGraph`	`getGraph()` Gets the topmost navigation graph associated with this NavController.
`NavInflater`	`getNavInflater()` Returns the `inflater` for this controller.
`NavigatorProvider`	`getNavigatorProvider()` Retrieve the NavController's `NavigatorProvider`. All `Navigators` used to construct the `navigation graph` for this nav controller should be added to this navigator provider before the graph is constructed. Generally, the Navigators are set for you by the `NavHost` hosting this NavController and you do not need to manually interact with the navigator provider.
`NavBackStackEntry?`	`getPreviousBackStackEntry()` Gets the previous visible `NavBackStackEntry`. This skips over any `NavBackStackEntry` that is associated with a `NavGraph`.
`ViewModelStoreOwner`	`getViewModelStoreOwner(@IdRes navGraphId: Int)` Gets the `ViewModelStoreOwner` for a NavGraph. This can be passed to `androidx.lifecycle.ViewModelProvider` to retrieve a ViewModel that is scoped to the navigation graph - it will be cleared when the navigation graph is popped off the back stack.
`Boolean`	`handleDeepLink(@Nullable intent: Intent?)` Checks the given Intent for a Navigation deep link and navigates to the deep link if present. This is called automatically for you the first time you set the graph if you've passed in an `Activity` as the context when constructing this NavController, but should be manually called if your Activity receives new Intents in `Activity#onNewIntent(Intent)`. The types of Intents that are supported include: Intents created by `NavDeepLinkBuilder` or `createDeepLink()`. This assumes that the current graph shares the same hierarchy to get to the deep linked destination as when the deep link was constructed. Intents that include a `data Uri`. This Uri will be checked against the Uri patterns in the `NavDeepLinks` added via `NavDestination#addDeepLink(NavDeepLink)`. The `navigation graph` should be set before calling this method.
`Unit`	`navigate(@IdRes resId: Int)` Navigate to a destination from the current navigation graph. This supports both navigating via an `action` and directly navigating to a destination.
`Unit`	`navigate(@IdRes resId:`