Note: To use this api in non-instrumented tests, run with robolectric. This is because android's Bundle is necessarily integrated into the parsing of route arguments.
A mapping of KType to custom NavType<*> in the route. May be empty if route does not use custom NavTypes.
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Last updated 2025-05-15 UTC.
[null,null,["Last updated 2025-05-15 UTC."],[],[],null,["# androidx.navigation.testing\n===========================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/androidx/navigation/testing/package-summary \"View this page in Java\")\nCommon/AllAndroid/JVM\n\nClasses\n-------\n\n|----------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|\n| [TestNavHostController](/reference/kotlin/androidx/navigation/testing/TestNavHostController) | Subclass of [NavHostController](/reference/kotlin/androidx/navigation/NavHostController) that offers additional APIs for testing Navigation. | android |\n| [TestNavigatorState](/reference/kotlin/androidx/navigation/testing/TestNavigatorState) | An implementation of [NavigatorState](/reference/kotlin/androidx/navigation/NavigatorState) that allows testing a [androidx.navigation.Navigator](/reference/kotlin/androidx/navigation/Navigator) in isolation (i.e., without requiring a [androidx.navigation.NavController](/reference/kotlin/androidx/navigation/NavController)). | android |\n\nExtension functions summary\n---------------------------\n\n|--------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----|\n| `operator `[SavedStateHandle](/reference/kotlin/androidx/lifecycle/SavedStateHandle) | [SavedStateHandle.Companion](/reference/kotlin/androidx/lifecycle/SavedStateHandle.Companion)`.`[invoke](/reference/kotlin/androidx/navigation/testing/package-summary#(androidx.lifecycle.SavedStateHandle.Companion).invoke(kotlin.Any,kotlin.collections.Map))`(` ` route: `[Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html)`,` ` typeMap: `[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`\u003c`[KType](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.reflect/-k-type/index.html)`, `[NavType](/reference/kotlin/androidx/navigation/NavType)`\u003c*\u003e\u003e` `)` SavedStateHandle constructor to create a SavedStateHandle with a serializable object. | Cmn |\n\nExtension functions\n-------------------\n\n### invoke\n\nCmn \nArtifact: [androidx.navigation:navigation-testing](/jetpack/androidx/releases/navigation) \n[View Source](https://cs.android.com/search?q=file:androidx/navigation/testing/SavedStateHandleFactory.kt+function:invoke) \nAdded in [2.8.0](/jetpack/androidx/releases/navigation#2.8.0) \n\n```\noperator fun SavedStateHandle.Companion.invoke(\n route: Any,\n typeMap: Map\u003cKType, NavType\u003c*\u003e\u003e = emptyMap()\n): SavedStateHandle\n```\n\nSavedStateHandle constructor to create a SavedStateHandle with a serializable object.\n\nReturns a [SavedStateHandle](/reference/kotlin/androidx/lifecycle/SavedStateHandle) populated with arguments from [route](/reference/kotlin/androidx/navigation/testing/package-summary#(androidx.lifecycle.SavedStateHandle.Companion).invoke(kotlin.Any,kotlin.collections.Map)).\n\nNote: To use this api in non-instrumented tests, run with robolectric. This is because android's Bundle is necessarily integrated into the parsing of route arguments. \n\n| Parameters |\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `route: `[Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) | The route to extract argument values from |\n| `typeMap: `[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`\u003c`[KType](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.reflect/-k-type/index.html)`, `[NavType](/reference/kotlin/androidx/navigation/NavType)`\u003c*\u003e\u003e = emptyMap()` | A mapping of KType to custom NavType\\\u003c\\*\\\u003e in the [route](/reference/kotlin/androidx/navigation/testing/package-summary#(androidx.lifecycle.SavedStateHandle.Companion).invoke(kotlin.Any,kotlin.collections.Map)). May be empty if [route](/reference/kotlin/androidx/navigation/testing/package-summary#(androidx.lifecycle.SavedStateHandle.Companion).invoke(kotlin.Any,kotlin.collections.Map)) does not use custom NavTypes. |"]]
