Oppok9pro does not display when receiving short messages.

Notification management can manage the notification rights of all applications, and you can choose how to extend notifications for each application.

1. Go to Settings > Notifications and Status Bar > Notification Management.

2. select application >; Turn notification rights on or off. You can also display digital corner, point corner or no corner on the desktop icon when you choose notification here.

After the notification permission of the application is turned on, the notification center will display the total push of the application. On any unlocked screen, swipe down from the top of the screen to view the information of the notification center.

If there are messages in the notification center that you are not interested in, you can delete the notification in the following two ways:

1. Slide a single notification left/right. After the delete icon appears, click the delete icon to delete, or continue to slide to the left to delete directly.

2. Click Clear All in the lower right corner of the notification center to delete all notifications at once.

This answer applies to all OPPO models.