{% setvar book_path %}/reference/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}

DataInteraction.DisplayDataMatcher

public final class DataInteraction.DisplayDataMatcher extends TypeSafeMatcher

java.lang.Object
↳	org.hamcrest.BaseMatcher
	↳	org.hamcrest.TypeSafeMatcher
		↳	androidx.test.espresso.DataInteraction.DisplayDataMatcher

Internal matcher that is required for onData.

This matcher is only visible to support proto serialization. Do not use this matcher in any Espresso test code!

Summary

Public constructors
`DisplayDataMatcher()`

Public methods
`void`	`describeTo(Description description)`
`static DataInteraction.DisplayDataMatcher`	`displayDataMatcher( @NonNull Matcher<View> adapterMatcher, @NonNull Matcher<Object> dataMatcher, @NonNull Matcher<Root> rootMatcher, EspressoOptional<Integer> atPosition, @NonNull AdapterViewProtocol adapterViewProtocol )` Returns an instance of `DisplayDataMatcher`.
`boolean`	`matchesSafely(View view)`

Inherited methods

From class org.hamcrest.BaseMatcher

`final void`	`_dont_implement_Matcher___instead_extend_BaseMatcher_()` This method is deprecated.
`String`	`toString()`

From class org.hamcrest.TypeSafeMatcher

`final void`	`describeMismatch(Object item, Description description)`
`void`	`describeMismatchSafely(T item, Description mismatchDescription)`
`final boolean`	`matches(Object item)`

Public constructors

DisplayDataMatcher

public final DisplayDataMatcher()

Public methods

describeTo

public void describeTo(Description description)

displayDataMatcher

public static DataInteraction.DisplayDataMatcher displayDataMatcher(
    @NonNull Matcher<View> adapterMatcher,
    @NonNull Matcher<Object> dataMatcher,
    @NonNull Matcher<Root> rootMatcher,
    EspressoOptional<Integer> atPosition,
    @NonNull AdapterViewProtocol adapterViewProtocol
)

Returns an instance of DisplayDataMatcher.

Note: This is an internal method, do not call from test code!

Parameters
`@NonNull Matcher<View> adapterMatcher`	matcher that matches an `AdapterView`
`@NonNull Matcher<Object> dataMatcher`	the data matcher for matching a `View` by it's adapter data
`@NonNull AdapterViewProtocol adapterViewProtocol`	the `AdapterViewProtocol` used for this data interaction

matchesSafely

public boolean matchesSafely(View view)