The specific operations are as follows:
1. Enter the mobile QQ interface and select "Personal Avatar".
2. Select "Settings" in the pop-up box.
3. Enter the settings interface and select "Message Notification"
4. Enter the message notification interface and turn off the slider on the right side of "Display message pop-up box on lock screen".
5. After the setting is completed, enter the phone settings interface and select "Notifications and Status Bar".
6. Enter the notification and status bar settings and click "Notification Intelligent Management".
7. Click "QQ" in the application.
8. Enter QQ notification settings and turn off the slider on the right side of "Allow notifications" to complete the settings.