# DataInteraction.DisplayDataMatcher
Summary:[Methods](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)
# DataInteraction.DisplayDataMatcher
| 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package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack).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
static
final
class
DataInteraction.DisplayDataMatcher
`
`
``
``
extends TypeSafeMatcher<`[View](https://developer.android.com/reference/android/view/View.html)`>
``
`
|---|---|---|------------------------------------------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object.html) ||||
| ↳ | org.hamcrest.BaseMatcher\<[android.view.View](https://developer.android.com/reference/android/view/View.html)\> |||
| | ↳ | org.hamcrest.TypeSafeMatcher\<[android.view.View](https://developer.android.com/reference/android/view/View.html)\> ||
| | | ↳ | android.support.test.espresso.DataInteraction.DisplayDataMatcher |
*** ** * ** ***
Internal matcher that is required for[onData(Matcher)](https://developer.android.com/reference/android/support/test/espresso/Espresso#onData(org.hamcrest.Matcher)).
This matcher is only visible to support proto serialization. Do not use this matcher in any Espresso test code!
## Summary
| ### Public methods ||
|----------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` void` | ` `[describeTo](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#describeTo(org.hamcrest.Description))`(Description description) ` |
| ` static `[DataInteraction.DisplayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher) | ` `[displayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#displayDataMatcher(org.hamcrest.Matcher, org.hamcrest.Matcher, org.hamcrest.Matcher, android.support.test.espresso.util.EspressoOptional, android.support.test.espresso.action.AdapterViewProtocol))`(Matcher<`[View](https://developer.android.com/reference/android/view/View.html)`> adapterMatcher, Matcher dataMatcher, Matcher<`[Root](https://developer.android.com/reference/android/support/test/espresso/Root)`> rootMatcher, `[EspressoOptional](https://developer.android.com/reference/android/support/test/espresso/util/EspressoOptional)`<`[Integer](https://developer.android.com/reference/java/lang/Integer.html)`> atPosition, `[AdapterViewProtocol](https://developer.android.com/reference/android/support/test/espresso/action/AdapterViewProtocol)` adapterViewProtocol) ` Returns an instance of[DataInteraction.DisplayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher). |
| ` boolean` | ` `[matchesSafely](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#matchesSafely(android.view.View))`(`[View](https://developer.android.com/reference/android/view/View.html)` view) ` |
| ### Inherited methods |
|-----------------------|---|
| [](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)From class` org.hamcrest.TypeSafeMatcher ` |---------------------|-----------------------------------------------------------------------------------------------------------------------------| | ` final void` | ` describeMismatch(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0, Description arg1) ` | | ` void` | ` describeMismatchSafely(`[View](https://developer.android.com/reference/android/view/View.html)` arg0, Description arg1) ` | | ` final boolean` | ` matches(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0) ` | | ` abstract boolean` | ` matchesSafely(`[View](https://developer.android.com/reference/android/view/View.html)` arg0) ` | ||
| [](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)From class` org.hamcrest.BaseMatcher ` |----------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------| | ` final void` | ` _dont_implement_Matcher___instead_extend_BaseMatcher_() ` | | ` void` | ` describeMismatch(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0, Description arg1) ` | | ` `[String](https://developer.android.com/reference/java/lang/String.html) | ` toString() ` | ||
| [](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)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() ` | ||
| [](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)From interface` org.hamcrest.Matcher ` |---------------------|------------------------------------------------------------------------------------------------------------------------| | ` abstract void` | ` _dont_implement_Matcher___instead_extend_BaseMatcher_() ` | | ` abstract void` | ` describeMismatch(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0, Description arg1) ` | | ` abstract boolean` | ` matches(`[Object](https://developer.android.com/reference/java/lang/Object.html)` arg0) ` | ||
| [](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher#)From interface` org.hamcrest.SelfDescribing ` |------------------|----------------------------------| | ` abstract void` | ` describeTo(Description arg0) ` | ||
## Public methods
### describeTo
```
void describeTo (Description description)
```
| Parameters ||
|---------------|----------------------|
| `description` | `Description`
|
### displayDataMatcher
```
DataInteraction.DisplayDataMatcher displayDataMatcher (Matcher adapterMatcher,
Matcher dataMatcher,
Matcher rootMatcher,
EspressoOptional atPosition,
AdapterViewProtocol adapterViewProtocol)
```
Returns an instance of[DataInteraction.DisplayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher).
Note: This is an internal method, do not call from test code!
| Parameters ||
|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `adapterMatcher` | `Matcher`: matcher that matches an[AdapterView](https://developer.android.com/reference/android/widget/AdapterView.html)
|
| `dataMatcher` | `Matcher`: the data matcher for matching a[View](https://developer.android.com/reference/android/view/View.html)by it's adapter data
|
| `rootMatcher` | `Matcher`
|
| `atPosition` | `EspressoOptional`
|
| `adapterViewProtocol` | `AdapterViewProtocol`: the[AdapterViewProtocol](https://developer.android.com/reference/android/support/test/espresso/action/AdapterViewProtocol)used for this data interaction
|
| Returns ||
|------------------------------------------------------------------------------------------------------------------------------------------------|--------|
| [DataInteraction.DisplayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher) |
|
### matchesSafely
```
boolean matchesSafely (View view)
```
| Parameters ||
|--------|---------------|
| `view` | `View`
|
| Returns ||
|-----------|--------|
| `boolean` |
|
-
## Interfaces
- [EspressoException](https://developer.android.com/reference/android/support/test/espresso/EspressoException)
- [FailureHandler](https://developer.android.com/reference/android/support/test/espresso/FailureHandler)
- [IdlingResource](https://developer.android.com/reference/android/support/test/espresso/IdlingResource)
- [IdlingResource.ResourceCallback](https://developer.android.com/reference/android/support/test/espresso/IdlingResource.ResourceCallback)
- [UiController](https://developer.android.com/reference/android/support/test/espresso/UiController)
- [ViewAction](https://developer.android.com/reference/android/support/test/espresso/ViewAction)
- [ViewAssertion](https://developer.android.com/reference/android/support/test/espresso/ViewAssertion)
- [ViewFinder](https://developer.android.com/reference/android/support/test/espresso/ViewFinder)
- [ViewInteractionComponent](https://developer.android.com/reference/android/support/test/espresso/ViewInteractionComponent)
-
## Classes
- [AmbiguousViewMatcherException.Builder](https://developer.android.com/reference/android/support/test/espresso/AmbiguousViewMatcherException.Builder)
- [DataInteraction](https://developer.android.com/reference/android/support/test/espresso/DataInteraction)
- [DataInteraction.DisplayDataMatcher](https://developer.android.com/reference/android/support/test/espresso/DataInteraction.DisplayDataMatcher)
- [Espresso](https://developer.android.com/reference/android/support/test/espresso/Espresso)
- [IdlingPolicies](https://developer.android.com/reference/android/support/test/espresso/IdlingPolicies)
- [IdlingPolicy](https://developer.android.com/reference/android/support/test/espresso/IdlingPolicy)
- [IdlingRegistry](https://developer.android.com/reference/android/support/test/espresso/IdlingRegistry)
- [NoMatchingViewException.Builder](https://developer.android.com/reference/android/support/test/espresso/NoMatchingViewException.Builder)
- [PerformException.Builder](https://developer.android.com/reference/android/support/test/espresso/PerformException.Builder)
- [Root](https://developer.android.com/reference/android/support/test/espresso/Root)
- [Root.Builder](https://developer.android.com/reference/android/support/test/espresso/Root.Builder)
- [ViewInteraction](https://developer.android.com/reference/android/support/test/espresso/ViewInteraction)
-
## Exceptions
- [AmbiguousViewMatcherException](https://developer.android.com/reference/android/support/test/espresso/AmbiguousViewMatcherException)
- [AppNotIdleException](https://developer.android.com/reference/android/support/test/espresso/AppNotIdleException)
- [IdlingResourceTimeoutException](https://developer.android.com/reference/android/support/test/espresso/IdlingResourceTimeoutException)
- [InjectEventSecurityException](https://developer.android.com/reference/android/support/test/espresso/InjectEventSecurityException)
- [NoActivityResumedException](https://developer.android.com/reference/android/support/test/espresso/NoActivityResumedException)
- [NoMatchingRootException](https://developer.android.com/reference/android/support/test/espresso/NoMatchingRootException)
- [NoMatchingViewException](https://developer.android.com/reference/android/support/test/espresso/NoMatchingViewException)
- [PerformException](https://developer.android.com/reference/android/support/test/espresso/PerformException)