我实际上是在使用这段代码来检查onPause中的应用程序是否进入后台。publicstaticbooleanisApplicationSentToBackground(finalContextcontext){ActivityManageram=(ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);Listtasks=am.getRunningTasks(1);if(!tasks.isEmpty()){ComponentNametopActivity=tasks.get(0).topActivity;St