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Last updated 2025-07-30 UTC.
[null,null,["Last updated 2025-07-30 UTC."],[],[],null,["# androidx.lifecycle.viewmodel\n============================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/androidx/lifecycle/viewmodel/package-summary \"View this page in Kotlin\") \\|Java\n\nAnnotations\n-----------\n\n|------------------------------------------------------------------------------------|---|\n| [ViewModelFactoryDsl](/reference/androidx/lifecycle/viewmodel/ViewModelFactoryDsl) | |\n\nInterfaces\n----------\n\n|----------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------|\n| [CreationExtras.Key](/reference/androidx/lifecycle/viewmodel/CreationExtras.Key) | Key for the elements of [CreationExtras](/reference/androidx/lifecycle/viewmodel/CreationExtras). |\n\nClasses\n-------\n\n|------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [CreationExtras](/reference/androidx/lifecycle/viewmodel/CreationExtras) | A map-like object holding pairs of [CreationExtras.Key](/reference/androidx/lifecycle/viewmodel/CreationExtras.Key) and [Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html), enabling efficient value retrieval for each key. |\n| [CreationExtrasKt](/reference/androidx/lifecycle/viewmodel/CreationExtrasKt) | |\n| [InitializerViewModelFactoryBuilder](/reference/androidx/lifecycle/viewmodel/InitializerViewModelFactoryBuilder) | DSL for constructing a new [ViewModelProvider.Factory](/reference/androidx/lifecycle/ViewModelProvider.Factory) |\n| [InitializerViewModelFactoryKt](/reference/androidx/lifecycle/viewmodel/InitializerViewModelFactoryKt) | |\n| [MutableCreationExtras](/reference/androidx/lifecycle/viewmodel/MutableCreationExtras) | A modifiable [CreationExtras](/reference/androidx/lifecycle/viewmodel/CreationExtras) that holds pairs of [CreationExtras.Key](/reference/androidx/lifecycle/viewmodel/CreationExtras.Key) and [Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html), allowing efficient value retrieval for each key. |\n| [ViewModelInitializer](/reference/androidx/lifecycle/viewmodel/ViewModelInitializer) | Holds a [ViewModel](/reference/androidx/lifecycle/ViewModel) class and initializer for that class |\n| [CreationExtras.Empty](/reference/androidx/lifecycle/viewmodel/CreationExtras.Empty) | An empty read-only [CreationExtras](/reference/androidx/lifecycle/viewmodel/CreationExtras). |"]]
