How does Glory v40 hide the content of lock screen notification?

When the phone is locked, if there is a message notification, the message content of the notification will be displayed on the screen. If you don't want others to see it, you can open and hide the notification content. So how does Glory v40 hide the content of the lock screen notification?

How does Glory v40 hide the content of lock screen notification? 1. Click the Settings icon on the phone desktop.

2. Click the notification option.

3. Turn on the switch behind the hidden notification content.

This paper takes Glory v40 as an example and applies it to Magic UI 4.0 system.