Java tutorial
//package com.java2s; import android.app.Activity; import java.util.ArrayList; import java.util.List; public class Main { private static List<Activity> activitys = new ArrayList<>(); public static void exitApp() { for (Activity activity : activitys) { if (null != activity) { activity.finish(); } } android.os.Process.killProcess(android.os.Process.myPid()); } }