Java tutorial
//package com.java2s; /* * Jitsi, the OpenSource Java VoIP and Instant Messaging client. * * Copyright @ 2015 Atlassian Pty Ltd * * 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. */ import java.util.*; import android.app.*; import android.content.*; public class Main { /** * Indicates if the service given by <tt>activityClass</tt> is currently * running. * * @param context the Android context * @param activityClass the activity class to check * @return <tt>true</tt> if the activity given by the class is running, * <tt>false</tt> - otherwise */ public static boolean isActivityRunning(Context context, Class<?> activityClass) { ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningTaskInfo> services = activityManager.getRunningTasks(Integer.MAX_VALUE); boolean isServiceFound = false; for (int i = 0; i < services.size(); i++) { if (services.get(i).topActivity.getClassName().equals(activityClass.getName())) { isServiceFound = true; } } return isServiceFound; } }