# IdlingResourceRegistry Summary:[Ctors](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#pubctors)\|[Methods](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#) # IdlingResourceRegistry | 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package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack).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 IdlingResourceRegistry ` ` extends `[Object](https://developer.android.com/reference/java/lang/Object.html)` `` ` |---|-----------------------------------------------------------| | [java.lang.Object](https://developer.android.com/reference/java/lang/Object.html) || | ↳ | android.support.test.espresso.base.IdlingResourceRegistry |
*** ** * ** *** Keeps track of user-registered[IdlingResources](https://developer.android.com/reference/android/support/test/espresso/IdlingResource). Consider using[IdlingRegistry](https://developer.android.com/reference/android/support/test/espresso/IdlingRegistry)instead of this class. ## Summary | ### Public constructors || |----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | ` `[IdlingResourceRegistry](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#IdlingResourceRegistry(android.os.Looper))`(`[Looper](https://developer.android.com/reference/android/os/Looper.html)` looper) ` | | ### Public methods || |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[List](https://developer.android.com/reference/java/util/List.html)`<`[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)`>` | ` `[getResources](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#getResources())`() ` Returns a list of all currently registered[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)s. | | ` void` | ` `[registerLooper](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#registerLooper(android.os.Looper, boolean))`(`[Looper](https://developer.android.com/reference/android/os/Looper.html)` looper, boolean considerWaitIdle) ` | | ` boolean` | ` `[registerResources](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#registerResources(java.util.List))`(`[List](https://developer.android.com/reference/java/util/List.html)` resourceList) ` Registers the given resources. | | ` void` | ` `[sync](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#sync(java.lang.Iterable, java.lang.Iterable))`(`[Iterable](https://developer.android.com/reference/java/lang/Iterable.html)`<`[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)`> resources, `[Iterable](https://developer.android.com/reference/java/lang/Iterable.html)`<`[Looper](https://developer.android.com/reference/android/os/Looper.html)`> loopers) ` Ensures that this idling resource registry is in sync with given resources by registering/un-registering idling resources as needed. | | ` boolean` | ` `[unregisterResources](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#unregisterResources(java.util.List))`(`[List](https://developer.android.com/reference/java/util/List.html)` resourceList) ` Unregisters the given resources. | | ### Inherited methods | |-----------------------|---| | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry#)From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object.html)` ` |-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object.html) | ` clone() ` | | ` boolean` | ` equals(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0) ` | | ` void` | ` finalize() ` | | ` final `[Class](https://developer.android.com/reference/java/lang/Class.html)`` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` `[String](https://developer.android.com/reference/java/lang/String.html) | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | || ## Public constructors ### IdlingResourceRegistry ``` IdlingResourceRegistry (Looper looper) ```

| Parameters || |----------|-----------------| | `looper` | `Looper`
| ## Public methods ### getResources ``` List getResources () ``` Returns a list of all currently registered[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)s. This method is safe to call from any thread.
| Returns || |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------| | [List](https://developer.android.com/reference/java/util/List.html)`<`[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)`>` | an ImmutableList of[IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)s.
| ### registerLooper ``` void registerLooper (Looper looper, boolean considerWaitIdle) ```

| Parameters || |--------------------|------------------| | `looper` | `Looper`
| | `considerWaitIdle` | `boolean`
| ### registerResources ``` boolean registerResources (List resourceList) ``` Registers the given resources. If any of the given resources are already registered, a warning is logged.
| Parameters || |----------------|---------------| | `resourceList` | `List`
| | Returns || |-----------|------------------------------------------------------------| | `boolean` | `true`if all resources were successfully registered
| ### sync ``` void sync (Iterable resources, Iterable loopers) ``` Ensures that this idling resource registry is in sync with given resources by registering/un-registering idling resources as needed.
| Parameters || |-------------|-------------------| | `resources` | `Iterable`
| | `loopers` | `Iterable`
| ### unregisterResources ``` boolean unregisterResources (List resourceList) ``` Unregisters the given resources. If any of the given resources are not already registered, a warning is logged.
| Parameters || |----------------|---------------| | `resourceList` | `List`
| | Returns || |-----------|--------------------------------------------------------------| | `boolean` | `true`if all resources were successfully unregistered
| - ## Annotations - [Default](https://developer.android.com/reference/android/support/test/espresso/base/Default) - [MainThread](https://developer.android.com/reference/android/support/test/espresso/base/MainThread) - [RootViewPickerScope](https://developer.android.com/reference/android/support/test/espresso/base/RootViewPickerScope) - ## Interfaces - [ActiveRootLister](https://developer.android.com/reference/android/support/test/espresso/base/ActiveRootLister) - [IdlingUiController](https://developer.android.com/reference/android/support/test/espresso/base/IdlingUiController) - [InterruptableUiController](https://developer.android.com/reference/android/support/test/espresso/base/InterruptableUiController) - ## Classes - [DefaultFailureHandler](https://developer.android.com/reference/android/support/test/espresso/base/DefaultFailureHandler) - [IdlingResourceRegistry](https://developer.android.com/reference/android/support/test/espresso/base/IdlingResourceRegistry) - [RootViewPicker](https://developer.android.com/reference/android/support/test/espresso/base/RootViewPicker) - [ViewFinderImpl](https://developer.android.com/reference/android/support/test/espresso/base/ViewFinderImpl)