How to turn off the "notification message" in Redmi note4 SMS?

1) Open the phone settings, then find the notification and status bar, and then click Notification Management.

2) After opening, we select the application to close, and then pull the ellipse on the right side of the rights notification bar to the left to close it.

or

You can press and hold the application to open the application settings window. You can also click Settings to open the following window, select an application and find the application you want to deal with, such as cd. Click to enter the interface where you just set up the application, and you can see that there is an option to display the notification. Remove the check mark in front, and a dialog box will pop up. Click OK to find other applications immediately. Do the same and return to the home page. Everything is calm.