The specific steps are as follows:
1. Open mobile qq, and click the avatar to enter.
2. Then click Settings in the lower left corner.
3. Then find the following message to inform you to enter.
4. Set the message reminder after entering.
5. Finally, click the button on the right side of the notification display message preview display.
6. This button is grayed out, indicating successful closing.
After this setting is successful, as long as you don't click QQ, you won't see the details.