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

RootMatchers

class RootMatchers

A collection of matchers for Root objects.

Summary

Constants
`const Matcher<Root!>!`	`DEFAULT` Espresso's default `Root` matcher.

Public constructors
`RootMatchers()`

Public functions
`java-static Matcher<Root!>!`	`hasWindowLayoutParams()`
`java-static Matcher<Root!>!`	`isDialog()` Matches `Root`s that are dialogs (i.e. is not a window of the currently resumed activity).
`java-static Matcher<Root!>!`	`isFocusable()` Matches `Root`s that can take window focus.
`java-static Matcher<Root!>!`	`isPlatformPopup()` Matches `Root`s that are popups - like autocomplete suggestions or the actionbar spinner.
`java-static Matcher<Root!>!`	`isSystemAlertWindow()` Matches `Root`s that are system alert windows i.e. shown on top of all other applications and is not a window of the currently resumed activity
`java-static Matcher<Root!>!`	`isTouchable()` Matches `Root`s that can receive touch events.
`java-static Matcher<Root!>!`	`withDecorView(decorViewMatcher: Matcher<View!>!)` Matches `Root`s with decor views that match the given view matcher.

const val DEFAULT: Matcher<Root!>!

Espresso's default Root matcher.

RootMatchers()

java-static fun hasWindowLayoutParams(): Matcher<Root!>!

java-static fun isDialog(): Matcher<Root!>!

Matches Roots that are dialogs (i.e. is not a window of the currently resumed activity).

java-static fun isFocusable(): Matcher<Root!>!

Matches Roots that can take window focus.

java-static fun isPlatformPopup(): Matcher<Root!>!

Matches Roots that are popups - like autocomplete suggestions or the actionbar spinner.

java-static fun isSystemAlertWindow(): Matcher<Root!>!

Matches Roots that are system alert windows i.e. shown on top of all other applications and is not a window of the currently resumed activity

Apps using this type of windows require the following permission: android.permission.SYSTEM_ALERT_WINDOW

java-static fun isTouchable(): Matcher<Root!>!

Matches Roots that can receive touch events.

java-static fun withDecorView(decorViewMatcher: Matcher<View!>!): Matcher<Root!>!

Matches Roots with decor views that match the given view matcher.