Why not accept push messages from Android?

That's because you installed an app that removes advertisements from the background push notification bar. There are several solutions to this problem. First, install interception software to treat the symptoms rather than the root cause. Second, use advertising monitoring software to scan those applications, take away rogue push, and decisively delete such applications. However, if good applications are used, people will be very reluctant to give up. Third, download applications from Google's official market, and these rogue programs will not exist in the above applications.