package com.proxgrind.chameleon.utils.system; import android.app.Activity; import android.app.Application; public class AppContextUtils { private static AppContextUtils thiz = null; public static Application app; private AppContextUtils() { } public static AppContextUtils getInstance() { if (thiz == null) { thiz = new AppContextUtils(); } return thiz; } public static void register(Application app) { AppContextUtils.app = app; } public void finishAll() { for (Activity activity : CrashUtils.activities) { activity.finish(); } } }