content: /*
   * 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.testing.fixtures;
  
  import android.app.Application;
  import android.util.Pair;
  import androidx.test.runner.lifecycle.ApplicationLifecycleCallback;
  import androidx.test.runner.lifecycle.ApplicationStage;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * A {@link ApplicationLifecycleCallback} fixture used to ensure ApplicationLifecycleCallback
   * callbacks happen appropriately
   */
  public class AppLifecycleListener implements ApplicationLifecycleCallback {
  
    /**
     * List of ApplicationStage received from ApplicationLifecycleCallback, vs ApplicationStage via
     * MyApplication. They should always match.
     */
    public static List<Pair<ApplicationStage, ApplicationStage>> stages =
        new ArrayList<Pair<ApplicationStage, ApplicationStage>>();
  
    @Override
    public void onApplicationLifecycleChanged(Application app, ApplicationStage stage) {
      stages.add(new Pair(stage, MyApplication.getStage()));
    }
  }
  