iOS应用程序在后台运行，并在插入联系人时收到通知

Is this possible to do? I know basic iOS programming (i've only been playing around with it for a couple weeks), but I was wondering if Apple gives you the ability to do this. I would like the app to receive a notification when a new contact is added and then execute a method from there. Any advice would be great. Thanks!Is this possible to do? I know basic iOS progra