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The source code is released under:
Apache License
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/* * Copyright (C) 2013 Alastair R. Beresford */*from ww w . java2 s. c o m*/ * 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 uk.ac.cam.arb33.modaldialog; import java.util.ArrayList; import android.app.Activity; import android.util.Log; public class ForegroundActivity { private final static String TAG = ForegroundActivity.class.getName(); private final static ArrayList<Activity> activities = new ArrayList<Activity>(); public static void onResume(Activity activity) { activities.add(activity); } public static void onPause(Activity activity) { if(!activities.remove(activity)) { Log.e(TAG, "Attempting to pause an activity which as not resumed. Implies Dexter did not instrument app correctly."); } } public static Activity getCurrentActivity() { if (activities.size() != 1) { throw new RuntimeException("Invariant activities.size() == 1 has failed:" + activities.size()); } return activities.get(0); } }