How does Redmi k40 set the notification not to display content?

Many times when we come to the information, we will display the content of the information, so that people next to us can see it. For the sake of privacy and safety, how can Redmi k40 set up a notice not to display the content?

How does Redmi k40 set the notification not to display content? 1. Click Notification and Control Center in the phone setup menu.

2. Click the lock screen notification.

3. Click to display the rule.

4. Click to show the notification, but hide the content.

This paper takes Redmi k40 as an example and applies it to MIUI 12 system.