NavigatorProvider

Kotlin |Java

open class NavigatorProvider

kotlin.Any
↳	androidx.navigation.NavigatorProvider

A NavigationProvider stores a set of Navigators that are valid ways to navigate to a destination.

Summary

Public constructors
<init>() A NavigationProvider stores a set of Navigators that are valid ways to navigate to a destination.

Public methods
Navigator<out NavDestination!>?	addNavigator(@NonNull navigator: Navigator<out NavDestination!>) Register a navigator using the name provided by the Navigator.Name annotation.
open Navigator<out NavDestination!>?	addNavigator(@NonNull name: String, @NonNull navigator: Navigator<out NavDestination!>) Register a navigator by name.
T	getNavigator(@NonNull navigatorClass: Class<T>) Retrieves a registered Navigator using the name provided by the Navigator.Name annotation.
open T	getNavigator(@NonNull name: String) Retrieves a registered Navigator by name.

Extension functions

From androidx.navigation operator T NavigatorProvider.get(name: String) Retrieves a registered Navigator by name. operator T NavigatorProvider.get(clazz: KClass<T>) Retrieves a registered Navigator using the name provided by the Navigator.Name annotation. NavGraph NavigatorProvider.navigation(@IdRes id: Int = 0, @IdRes startDestination: Int, builder: NavGraphBuilder.() -> Unit) Construct a new NavGraph operator Unit NavigatorProvider.plusAssign(navigator: Navigator<out NavDestination>) Register a navigator using the name provided by the Navigator.Name annotation. operator Navigator<out NavDestination!>? NavigatorProvider.set(name: String, navigator: Navigator<out NavDestination>) Register a Navigator by name.

Public constructors

<init>

NavigatorProvider()

A NavigationProvider stores a set of Navigators that are valid ways to navigate to a destination.

Public methods

addNavigator

@Nullable fun addNavigator(@NonNull navigator: Navigator<out NavDestination!>): Navigator<out NavDestination!>?

Register a navigator using the name provided by the Navigator.Name annotation. destinations may refer to any registered navigator by name for inflation. If a navigator by this name is already registered, this new navigator will replace it.

Parameters
navigator	Navigator<out NavDestination!>: navigator to add

Return
Navigator<out NavDestination!>?	the previously added Navigator for the name provided by the Navigator.Name annotation, if any

addNavigator

@CallSuper @Nullable open fun addNavigator(
    @NonNull name: String, 
    @NonNull navigator: Navigator<out NavDestination!>
): Navigator<out NavDestination!>?

Register a navigator by name. destinations may refer to any registered navigator by name for inflation. If a navigator by this name is already registered, this new navigator will replace it.

Parameters
name	String: name for this navigator
navigator	Navigator<out NavDestination!>: navigator to add

Return
Navigator<out NavDestination!>?	the previously added Navigator for the given name, if any

getNavigator

@NonNull fun <T : Navigator<*>!> getNavigator(@NonNull navigatorClass: Class<T>): T

Retrieves a registered Navigator using the name provided by the Navigator.Name annotation.

Parameters
navigatorClass	Class<T>: class of the navigator to return

Return
T	the registered navigator with the given Navigator.Name

Exceptions
IllegalArgumentException	if the Navigator does not have a Navigator.Name annotation
IllegalStateException	if the Navigator has not been added

See Also

• #addNavigator(Navigator)

getNavigator

@CallSuper @NonNull open fun <T : Navigator<*>!> getNavigator(@NonNull name: String): T

Retrieves a registered Navigator by name.

Parameters
name	String: name of the navigator to return

Return
T	the registered navigator with the given name

Exceptions
IllegalStateException	if the Navigator has not been added

See Also

• #addNavigator(String, Navigator)