public final class

PressBackAction

extends androidx.test.espresso.action.KeyEventActionBase

 java.lang.Object

↳androidx.test.espresso.action.KeyEventActionBase

↳androidx.test.espresso.action.PressBackAction

Gradle dependencies

compile group: 'androidx.test.espresso', name: 'espresso-core', version: '3.5.0-alpha06'

  • groupId: androidx.test.espresso
  • artifactId: espresso-core
  • version: 3.5.0-alpha06

Artifact androidx.test.espresso:espresso-core:3.5.0-alpha06 it located at Google repository (https://maven.google.com/)

Androidx artifact mapping:

androidx.test.espresso:espresso-core com.android.support.test.espresso:espresso-core

Androidx class mapping:

androidx.test.espresso.action.PressBackAction android.support.test.espresso.action.PressBackAction

Overview

Performs an Android press back action

Summary

Fields
from androidx.test.espresso.action.KeyEventActionBaseBACK_ACTIVITY_TRANSITION_MILLIS_DELAY, CLEAR_TRANSITIONING_ACTIVITIES_ATTEMPTS, CLEAR_TRANSITIONING_ACTIVITIES_MILLIS_DELAY
Constructors
publicPressBackAction(boolean conditional)

Performs a press back action

publicPressBackAction(boolean conditional, EspressoKey espressoKey)

Methods
public voidperform(UiController uiController, View view)

from androidx.test.espresso.action.KeyEventActionBasegetConstraints, getDescription
from java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors

public PressBackAction(boolean conditional)

Performs a press back action

Parameters:

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)

Methods

public void perform(UiController uiController, View view)

Source

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.test.espresso.action;

import android.app.Activity;
import android.view.KeyEvent;
import android.view.View;
import androidx.test.espresso.UiController;

/** Performs an Android press back action */
public final class PressBackAction extends KeyEventActionBase {

  private final boolean conditional;

  /**
   * Performs a press back action
   *
   * @param conditional Indicated whether or not to throw an exception when Espresso navigates
   *     outside the application or process under test. {@code true} will throw.
   */
  public PressBackAction(boolean conditional) {
    this(conditional, new EspressoKey.Builder().withKeyCode(KeyEvent.KEYCODE_BACK).build());
  }

  public PressBackAction(boolean conditional, EspressoKey espressoKey) {
    super(espressoKey);
    this.conditional = conditional;
  }

  @Override
  public void perform(UiController uiController, View view) {

    Activity initialActivity = getCurrentActivity();

    super.perform(uiController, view);

    // Wait for a Stage change of the initial activity.
    waitForStageChangeInitialActivity(uiController, initialActivity);
    // Wait until there are no other pending activities in a foreground stage.
    waitForPendingForegroundActivities(uiController, conditional);
  }
}