# ViewModelStore

added in[version 1.0.0](https://developer.android.com/topic/libraries/support-library/revisions)  
belongs to Maven artifact android.arch.lifecycle:viewmodel:1.1.1  
Summary:[Ctors](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#pubctors)\|[Methods](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#inhmethods)  

# ViewModelStore

| The`android.arch`Architecture Components packages are no longer maintained. They have been superseded by the corresponding[androidx.\*](https://developer.android.com/jetpack/androidx/migrate)packages. See[androidx.lifecycle.ViewModelStore](https://developer.android.com/reference/androidx/lifecycle/ViewModelStore)instead.

`
public


class
ViewModelStore
`  
`

extends Object


``


`

|---|---------------------------------------|
| java.lang.Object                         ||
| ↳ | android.arch.lifecycle.ViewModelStore |

<br />

*** ** * ** ***

Class to store`ViewModels`.

An instance of`ViewModelStore`must be retained through configuration changes: if an owner of this`ViewModelStore`is destroyed and recreated due to configuration changes, new instance of an owner should still have the same old instance of`ViewModelStore`.

If an owner of this`ViewModelStore`is destroyed and is not going to be recreated, then it should call[clear()](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#clear())on this`ViewModelStore`, so`ViewModels`would be notified that they are no longer used.

[ViewModelStores](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStores)provides a`ViewModelStore`for activities and fragments.

## Summary

|                                                   ### Public constructors                                                   ||
|--------------------------------------------------------------------------------------------------------------------------|---|
| ` `[ViewModelStore](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#ViewModelStore())`() ` |

|                                                                                         ### Public methods                                                                                          ||
|---------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` final void` | ` `[clear](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore#clear())`() ` Clears internal storage and notifies ViewModels that they are no longer used. |

| ### Inherited methods |
|-----------------------|---|
| From class` java.lang.Object ` |-------------------|-------------------------------| | ` Object`         | ` clone() `                   | | ` boolean`        | ` equals(Object arg0) `       | | ` void`           | ` finalize() `                | | ` final Class<?>` | ` getClass() `                | | ` int`            | ` hashCode() `                | | ` final void`     | ` notify() `                  | | ` final void`     | ` notifyAll() `               | | ` String`         | ` toString() `                | | ` final void`     | ` wait(long arg0, int arg1) ` | | ` final void`     | ` wait(long arg0) `           | | ` final void`     | ` wait() `                    | ||

## Public constructors

### ViewModelStore

added in[version 1.0.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
ViewModelStore ()
```

<br />

<br />

## Public methods

### clear

added in[version 1.0.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void clear ()
```

Clears internal storage and notifies ViewModels that they are no longer used.

<br />

-

  ## Annotations

  - [OnLifecycleEvent](https://developer.android.com/reference/android/arch/lifecycle/OnLifecycleEvent)
-

  ## Interfaces

  - [DefaultLifecycleObserver](https://developer.android.com/reference/android/arch/lifecycle/DefaultLifecycleObserver)
  - [LifecycleObserver](https://developer.android.com/reference/android/arch/lifecycle/LifecycleObserver)
  - [LifecycleOwner](https://developer.android.com/reference/android/arch/lifecycle/LifecycleOwner)
  - [LifecycleRegistryOwner](https://developer.android.com/reference/android/arch/lifecycle/LifecycleRegistryOwner)
  - [Observer](https://developer.android.com/reference/android/arch/lifecycle/Observer)
  - [ViewModelProvider.Factory](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProvider.Factory)
  - [ViewModelStoreOwner](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStoreOwner)
-

  ## Classes

  - [AndroidViewModel](https://developer.android.com/reference/android/arch/lifecycle/AndroidViewModel)
  - [Lifecycle](https://developer.android.com/reference/android/arch/lifecycle/Lifecycle)
  - [LifecycleRegistry](https://developer.android.com/reference/android/arch/lifecycle/LifecycleRegistry)
  - [LifecycleService](https://developer.android.com/reference/android/arch/lifecycle/LifecycleService)
  - [LiveData](https://developer.android.com/reference/android/arch/lifecycle/LiveData)
  - [LiveDataReactiveStreams](https://developer.android.com/reference/android/arch/lifecycle/LiveDataReactiveStreams)
  - [MediatorLiveData](https://developer.android.com/reference/android/arch/lifecycle/MediatorLiveData)
  - [MutableLiveData](https://developer.android.com/reference/android/arch/lifecycle/MutableLiveData)
  - [ProcessLifecycleOwner](https://developer.android.com/reference/android/arch/lifecycle/ProcessLifecycleOwner)
  - [ServiceLifecycleDispatcher](https://developer.android.com/reference/android/arch/lifecycle/ServiceLifecycleDispatcher)
  - [Transformations](https://developer.android.com/reference/android/arch/lifecycle/Transformations)
  - [ViewModel](https://developer.android.com/reference/android/arch/lifecycle/ViewModel)
  - [ViewModelProvider](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProvider)
  - [ViewModelProvider.AndroidViewModelFactory](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProvider.AndroidViewModelFactory)
  - [ViewModelProvider.NewInstanceFactory](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProvider.NewInstanceFactory)
  - [ViewModelProviders](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProviders)
  - [ViewModelProviders.DefaultFactory](https://developer.android.com/reference/android/arch/lifecycle/ViewModelProviders.DefaultFactory)
  - [ViewModelStore](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStore)
  - [ViewModelStores](https://developer.android.com/reference/android/arch/lifecycle/ViewModelStores)
-

  ## Enums

  - [Lifecycle.Event](https://developer.android.com/reference/android/arch/lifecycle/Lifecycle.Event)
  - [Lifecycle.State](https://developer.android.com/reference/android/arch/lifecycle/Lifecycle.State)