TestNavHostController

Artifact: androidx.navigation:navigation-testing

View Source

Added in 2.3.0

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Kotlin |Java

Common/AllAndroid/JVM

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• Common/All
• Android/JVM

• android

  class TestNavHostController : NavHostController

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

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Subclass of NavHostController that offers additional APIs for testing Navigation.

Summary

Public constructors
TestNavHostController(context: Context)	android

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

Public properties
List<NavBackStackEntry>	backStack Gets an immutable copy of the elements currently on the back stack.	android

Inherited functions
From androidx.navigation.NavController open Unit addOnDestinationChangedListener(     listener: NavController.OnDestinationChangedListener ) android inline Boolean @MainThread <T : Any> clearBackStack() android Boolean @MainThread clearBackStack(destinationId: @IdRes Int) Clears any saved state associated with destinationId that was previously saved via popBackStack when using a saveState value of true. android Boolean @MainThread <T : Any> clearBackStack(route: KClass<T>) android Boolean @MainThread <T : Any> clearBackStack(route: T) android Boolean @MainThread clearBackStack(route: String) android open NavDeepLinkBuilder createDeepLink() Create a deep link to a destination within this NavController. android inline NavBackStackEntry <T : Any> getBackStackEntry() android open NavBackStackEntry getBackStackEntry(destinationId: @IdRes Int) Gets the topmost NavBackStackEntry for a destination id. android NavBackStackEntry <T : Any> getBackStackEntry(route: KClass<T>) android NavBackStackEntry <T : Any> getBackStackEntry(route: T) android NavBackStackEntry getBackStackEntry(route: String) android open ViewModelStoreOwner getViewModelStoreOwner(navGraphId: @IdRes Int) Gets the ViewModelStoreOwner for a NavGraph. android open Boolean @MainThread handleDeepLink(intent: Intent?) Checks the given Intent for a Navigation deep link and navigates to the deep link if present. android Boolean @MainThread handleDeepLink(request: NavDeepLinkRequest) android open Unit @MainThread navigate(deepLink: Uri) android open Unit @MainThread navigate(directions: NavDirections) Navigate via the given NavDirections android open Unit @MainThread navigate(request: NavDeepLinkRequest) android open Unit @MainThread navigate(resId: @IdRes Int) Navigate to a destination from the current navigation graph. android open Unit @MainThread navigate(deepLink: Uri, navOptions: NavOptions?) android open Unit @MainThread navigate(directions: NavDirections, navOptions: NavOptions?) Navigate via the given NavDirections android open Unit @MainThread navigate(directions: NavDirections, navigatorExtras: Navigator.Extras) Navigate via the given NavDirections android open Unit @MainThread navigate(request: NavDeepLinkRequest, navOptions: NavOptions?) android open Unit @MainThread navigate(resId: @IdRes Int, args: Bundle?) Navigate to a destination from the current navigation graph. android Unit @MainThread <T : Any> navigate(route: T, builder: NavOptionsBuilder.() -> Unit) android Unit @MainThread navigate(route: String, builder: NavOptionsBuilder.() -> Unit) android open Unit @MainThread navigate(     deepLink: Uri,     navOptions: NavOptions?,     navigatorExtras: Navigator.Extras? ) android open Unit @MainThread navigate(     request: NavDeepLinkRequest,     navOptions: NavOptions?,     navigatorExtras: Navigator.Extras? ) android open Unit @MainThread navigate(resId: @IdRes Int, args: Bundle?, navOptions: NavOptions?) Navigate to a destination from the current navigation graph. android Unit @MainThread <T : Any> navigate(     route: T,     navOptions: NavOptions?,     navigatorExtras: Navigator.Extras? ) android Unit @MainThread navigate(     route: String,     navOptions: NavOptions?,     navigatorExtras: Navigator.Extras? ) android open Unit @MainThread navigate(     resId: @IdRes Int,     args: Bundle?,     navOptions: NavOptions?,     navigatorExtras: Navigator.Extras? ) Navigate to a destination from the current navigation graph. android open Boolean @MainThread navigateUp() android open Boolean @MainThread popBackStack() android open Boolean @MainThread popBackStack(destinationId: @IdRes Int, inclusive: Boolean) Attempts to pop the controller's back stack back to a specific destination. android inline Boolean @MainThread <T : Any> popBackStack(inclusive: Boolean, saveState: Boolean) android open Boolean @MainThread popBackStack(     destinationId: @IdRes Int,     inclusive: Boolean,     saveState: Boolean ) Attempts to pop the controller's back stack back to a specific destination. android Boolean @MainThread <T : Any> popBackStack(     route: KClass<T>,     inclusive: Boolean,     saveState: Boolean ) android Boolean @MainThread <T : Any> popBackStack(route: T, inclusive: Boolean, saveState: Boolean) android Boolean @MainThread popBackStack(route: String, inclusive: Boolean, saveState: Boolean) android open Unit removeOnDestinationChangedListener(     listener: NavController.OnDestinationChangedListener ) android open Unit @CallSuper restoreState(navState: Bundle?) android open Bundle? @CallSuper saveState() android open Unit @MainThread @CallSuper setGraph(graphResId: @NavigationRes Int) Sets the navigation graph to the specified resource. android open Unit @MainThread @CallSuper setGraph(graph: NavGraph, startDestinationArgs: Bundle?) android open Unit @MainThread @CallSuper setGraph(graphResId: @NavigationRes Int, startDestinationArgs: Bundle?) Sets the navigation graph to the specified resource. android
From androidx.navigation.NavHostController final Unit enableOnBackPressed(enabled: Boolean) Set whether the NavController should handle the system Back button events via the registered OnBackPressedDispatcher. android final Unit setLifecycleOwner(owner: LifecycleOwner) android final Unit setOnBackPressedDispatcher(dispatcher: OnBackPressedDispatcher) Sets the host's OnBackPressedDispatcher. android final Unit setViewModelStore(viewModelStore: ViewModelStore) android

Inherited properties

From androidx.navigation.NavController open NavBackStackEntry? currentBackStackEntry android Flow<NavBackStackEntry> currentBackStackEntryFlow android open NavDestination? currentDestination android open NavGraph graph android open NavInflater navInflater The inflater for this controller. android open NavigatorProvider navigatorProvider android open NavBackStackEntry? previousBackStackEntry android StateFlow<List<NavBackStackEntry>> visibleEntries android

Public constructors

TestNavHostController

android

Added in 2.3.0

TestNavHostController(context: Context)

Public functions

setCurrentDestination

android

Added in 2.3.0

fun setCurrentDestination(destId: @IdRes Int, args: Bundle = savedState()): Unit

Navigate directly to any destination on the current androidx.navigation.NavGraph via an explicit deep link. If an implicit deep link exists for this destination use #navigate(Uri) instead.

Parameters
destId: @IdRes Int	The destination id to navigate to.
args: Bundle = savedState()	The arguments to pass to the destination.

Throws
java.lang.IllegalArgumentException	If the destination does not exist on the NavGraph.

setCurrentDestination

android

Added in 2.4.0

fun setCurrentDestination(destRoute: String, args: Bundle = savedState()): Unit

Navigate directly to any destination on the current androidx.navigation.NavGraph via an explicit deep link. If an implicit deep link exists for this destination use #navigate(Uri) instead.

Parameters
destRoute: String	The destination route to navigate to.
args: Bundle = savedState()	The arguments to pass to the destination.

Throws
java.lang.IllegalArgumentException	If the destination does not exist on the NavGraph.

Public properties

backStack

android

Added in 2.3.0

val backStack: List<NavBackStackEntry>

Gets an immutable copy of the elements currently on the back stack.