Java tutorial
//package com.java2s; //License from project: Open Source License import android.app.ActivityManager; import android.app.ActivityManager.RunningTaskInfo; import android.content.ComponentName; import android.content.Context; import java.util.List; public class Main { public static boolean isApplicationInStackHead(Context context) { ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<RunningTaskInfo> taskList = am.getRunningTasks(1); if (taskList != null && !taskList.isEmpty()) { ComponentName topActivity = taskList.get(0).topActivity; if (topActivity != null && !topActivity.getPackageName().equals(context.getPackageName())) { return false; } } return true; } }