Oppo a57 information pop-up window is closed. What should I do if the SMS content pops up?

OPPO A57 can close the pop-up window through the mobile phone housekeeper.

The steps of closing the pop-up permission of OPPO mobile phone are as follows:

First find the mobile phone housekeeper on the desktop and click enter;

Second, find the right privacy, click to enter;

Third, find the pause window management and click Enter;

Fourth, select the software that needs to manage the pop-up window and close the permission of the floating window. (In the figure, green means on, and gray means off. )