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

PressBackAction

public final class PressBackAction extends KeyEventActionBase

java.lang.Object
↳	androidx.test.espresso.action.KeyEventActionBase
	↳	androidx.test.espresso.action.PressBackAction

Performs an Android press back action

Summary

Public constructors
`PressBackAction(boolean conditional)` Performs a press back action
`PressBackAction(boolean conditional, EspressoKey espressoKey)`

Public methods
`void`	`perform(UiController uiController, View view)` Performs this action on the given view.

`Matcher<View>`	`getConstraints()` A mechanism for ViewActions to specify what type of views they can operate on.
`String`	`getDescription()` Returns a description of the view action.

`static final int`	`BACK_ACTIVITY_TRANSITION_MILLIS_DELAY`
`static final int`	`CLEAR_TRANSITIONING_ACTIVITIES_ATTEMPTS`
`static final int`	`CLEAR_TRANSITIONING_ACTIVITIES_MILLIS_DELAY`

public PressBackAction(boolean conditional)

Performs a press back action

Parameters
`boolean conditional`	Indicated whether or not to throw an exception when Espresso navigates outside the application or process under test. `true` will throw.

public PressBackAction(boolean conditional, EspressoKey espressoKey)

public void perform(UiController uiController, View view)

Performs this action on the given view.

Parameters
`UiController uiController`	the controller to use to interact with the UI.
`View view`	the view to act upon. never null.