# ActivityManagerCompat

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  
belongs to Maven artifact com.android.support:support-compat:28.0.0-alpha1  
Summary:[Methods](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat#)  

# ActivityManagerCompat

| This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings).

`
public

final

class
ActivityManagerCompat
`  
`

extends Object


``


`

|---|----------------------------------------------|
| java.lang.Object                                ||
| ↳ | android.support.v4.app.ActivityManagerCompat |

<br />

*** ** * ** ***

Helper for accessing features in[ActivityManager](https://developer.android.com/reference/android/app/ActivityManager.html)in a backwards compatible fashion.

## Summary

|                                                                                                                                                          ### Public methods                                                                                                                                                          ||
|-------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` static boolean` | ` `[isLowRamDevice](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat#isLowRamDevice(android.app.ActivityManager))`(`[ActivityManager](https://developer.android.com/reference/android/app/ActivityManager.html)` activityManager) ` Returns true if this is a low-RAM device. |

| ### Inherited methods |
|-----------------------|---|
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat#)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 methods

### isLowRamDevice

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
boolean isLowRamDevice (ActivityManager activityManager)
```

Returns true if this is a low-RAM device. Exactly whether a device is low-RAM is ultimately up to the device configuration, but currently it generally means something in the class of a 512MB device with about a 800x480 or less screen. This is mostly intended to be used by apps to determine whether they should turn off certain features that require more RAM.

<br />

|                 Parameters                  ||
|-------------------|--------------------------|
| `activityManager` | `ActivityManager` <br /> |

|      Returns      ||
|-----------|--------|
| `boolean` | <br /> |

-

  ## Annotations

  - [NotificationCompat.Action.SemanticAction](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Action.SemanticAction)
-

  ## Interfaces

  - [ActionBarDrawerToggle.Delegate](https://developer.android.com/reference/android/support/v4/app/ActionBarDrawerToggle.Delegate)
  - [ActionBarDrawerToggle.DelegateProvider](https://developer.android.com/reference/android/support/v4/app/ActionBarDrawerToggle.DelegateProvider)
  - [ActivityCompat.OnRequestPermissionsResultCallback](https://developer.android.com/reference/android/support/v4/app/ActivityCompat.OnRequestPermissionsResultCallback)
  - [ActivityCompat.PermissionCompatDelegate](https://developer.android.com/reference/android/support/v4/app/ActivityCompat.PermissionCompatDelegate)
  - [FragmentManager.BackStackEntry](https://developer.android.com/reference/android/support/v4/app/FragmentManager.BackStackEntry)
  - [FragmentManager.OnBackStackChangedListener](https://developer.android.com/reference/android/support/v4/app/FragmentManager.OnBackStackChangedListener)
  - [LoaderManager.LoaderCallbacks](https://developer.android.com/reference/android/support/v4/app/LoaderManager.LoaderCallbacks)
  - [NotificationCompat.Action.Extender](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Action.Extender)
  - [NotificationCompat.Extender](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Extender)
  - [SharedElementCallback.OnSharedElementsReadyListener](https://developer.android.com/reference/android/support/v4/app/SharedElementCallback.OnSharedElementsReadyListener)
  - [TaskStackBuilder.SupportParentable](https://developer.android.com/reference/android/support/v4/app/TaskStackBuilder.SupportParentable)
-

  ## Classes

  - [ActionBarDrawerToggle](https://developer.android.com/reference/android/support/v4/app/ActionBarDrawerToggle)
  - [ActivityCompat](https://developer.android.com/reference/android/support/v4/app/ActivityCompat)
  - [ActivityManagerCompat](https://developer.android.com/reference/android/support/v4/app/ActivityManagerCompat)
  - [ActivityOptionsCompat](https://developer.android.com/reference/android/support/v4/app/ActivityOptionsCompat)
  - [AlarmManagerCompat](https://developer.android.com/reference/android/support/v4/app/AlarmManagerCompat)
  - [AppLaunchChecker](https://developer.android.com/reference/android/support/v4/app/AppLaunchChecker)
  - [AppOpsManagerCompat](https://developer.android.com/reference/android/support/v4/app/AppOpsManagerCompat)
  - [BundleCompat](https://developer.android.com/reference/android/support/v4/app/BundleCompat)
  - [DialogFragment](https://developer.android.com/reference/android/support/v4/app/DialogFragment)
  - [Fragment](https://developer.android.com/reference/android/support/v4/app/Fragment)
  - [Fragment.SavedState](https://developer.android.com/reference/android/support/v4/app/Fragment.SavedState)
  - [FragmentActivity](https://developer.android.com/reference/android/support/v4/app/FragmentActivity)
  - [FragmentContainer](https://developer.android.com/reference/android/support/v4/app/FragmentContainer)
  - [FragmentController](https://developer.android.com/reference/android/support/v4/app/FragmentController)
  - [FragmentHostCallback](https://developer.android.com/reference/android/support/v4/app/FragmentHostCallback)
  - [FragmentManager](https://developer.android.com/reference/android/support/v4/app/FragmentManager)
  - [FragmentManager.FragmentLifecycleCallbacks](https://developer.android.com/reference/android/support/v4/app/FragmentManager.FragmentLifecycleCallbacks)
  - [FragmentManagerNonConfig](https://developer.android.com/reference/android/support/v4/app/FragmentManagerNonConfig)
  - [FragmentPagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentPagerAdapter)
  - [FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)
  - [FragmentTabHost](https://developer.android.com/reference/android/support/v4/app/FragmentTabHost)
  - [FragmentTransaction](https://developer.android.com/reference/android/support/v4/app/FragmentTransaction)
  - [FrameMetricsAggregator](https://developer.android.com/reference/android/support/v4/app/FrameMetricsAggregator)
  - [JobIntentService](https://developer.android.com/reference/android/support/v4/app/JobIntentService)
  - [ListFragment](https://developer.android.com/reference/android/support/v4/app/ListFragment)
  - [LoaderManager](https://developer.android.com/reference/android/support/v4/app/LoaderManager)
  - [NavUtils](https://developer.android.com/reference/android/support/v4/app/NavUtils)
  - [NotificationCompat](https://developer.android.com/reference/android/support/v4/app/NotificationCompat)
  - [NotificationCompat.Action](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Action)
  - [NotificationCompat.Action.Builder](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Action.Builder)
  - [NotificationCompat.Action.WearableExtender](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Action.WearableExtender)
  - [NotificationCompat.BigPictureStyle](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.BigPictureStyle)
  - [NotificationCompat.BigTextStyle](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.BigTextStyle)
  - [NotificationCompat.Builder](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder)
  - [NotificationCompat.CarExtender](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.CarExtender)
  - [NotificationCompat.CarExtender.UnreadConversation](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.CarExtender.UnreadConversation)
  - [NotificationCompat.CarExtender.UnreadConversation.Builder](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.CarExtender.UnreadConversation.Builder)
  - [NotificationCompat.DecoratedCustomViewStyle](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.DecoratedCustomViewStyle)
  - [NotificationCompat.InboxStyle](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.InboxStyle)
  - [NotificationCompat.MessagingStyle](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.MessagingStyle)
  - [NotificationCompat.MessagingStyle.Message](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.MessagingStyle.Message)
  - [NotificationCompat.Style](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.Style)
  - [NotificationCompat.WearableExtender](https://developer.android.com/reference/android/support/v4/app/NotificationCompat.WearableExtender)
  - [NotificationCompatExtras](https://developer.android.com/reference/android/support/v4/app/NotificationCompatExtras)
  - [NotificationCompatSideChannelService](https://developer.android.com/reference/android/support/v4/app/NotificationCompatSideChannelService)
  - [NotificationManagerCompat](https://developer.android.com/reference/android/support/v4/app/NotificationManagerCompat)
  - [RemoteInput](https://developer.android.com/reference/android/support/v4/app/RemoteInput)
  - [RemoteInput.Builder](https://developer.android.com/reference/android/support/v4/app/RemoteInput.Builder)
  - [ServiceCompat](https://developer.android.com/reference/android/support/v4/app/ServiceCompat)
  - [ShareCompat](https://developer.android.com/reference/android/support/v4/app/ShareCompat)
  - [ShareCompat.IntentBuilder](https://developer.android.com/reference/android/support/v4/app/ShareCompat.IntentBuilder)
  - [ShareCompat.IntentReader](https://developer.android.com/reference/android/support/v4/app/ShareCompat.IntentReader)
  - [SharedElementCallback](https://developer.android.com/reference/android/support/v4/app/SharedElementCallback)
  - [TaskStackBuilder](https://developer.android.com/reference/android/support/v4/app/TaskStackBuilder)
-

  ## Exceptions

  - [Fragment.InstantiationException](https://developer.android.com/reference/android/support/v4/app/Fragment.InstantiationException)