public final class

PressBackAction

extends Object
implements ViewAction
java.lang.Object
   ↳ androidx.test.espresso.action.PressBackAction

Class Overview

Performs an Android press back action

Summary

Constants
int BACK_ACTIVITY_TRANSITION_MILLIS_DELAY
int CLEAR_TRANSITIONING_ACTIVITIES_ATTEMPTS
int CLEAR_TRANSITIONING_ACTIVITIES_MILLIS_DELAY
Public Constructors
PressBackAction(boolean conditional)
Performs a press back action
PressBackAction(boolean conditional, EspressoKey espressoKey)
Public Methods
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.
void perform(UiController uiController, View view)
Performs this action on the given view.
[Expand]
Inherited Methods
From class java.lang.Object
From interface androidx.test.espresso.ViewAction

Constants

public static final int BACK_ACTIVITY_TRANSITION_MILLIS_DELAY

Constant Value: 150 (0x00000096)

public static final int CLEAR_TRANSITIONING_ACTIVITIES_ATTEMPTS

Constant Value: 4 (0x00000004)

public static final int CLEAR_TRANSITIONING_ACTIVITIES_MILLIS_DELAY

Constant Value: 150 (0x00000096)

Public Constructors

public PressBackAction (boolean conditional)

Performs a press back action

Parameters
conditional boolean: 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)

Parameters
conditional boolean
espressoKey EspressoKey

Public Methods

public Matcher<View> getConstraints ()

A mechanism for ViewActions to specify what type of views they can operate on.

A ViewAction can demand that the view passed to perform meets certain constraints. For example it may want to ensure the view is already in the viewable physical screen of the device or is of a certain type.

Returns
Matcher<View> a Matcher that will be tested prior to calling perform.

public String getDescription ()

Returns a description of the view action. The description should not be overly long and should fit nicely in a sentence like: "performing %description% action on view with id ..."

Returns
String

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.