How to set up a small window in Redmi?

If you need to use the small window display of your mobile phone, please refer to the following methods for opening and closing small windows:

Open a small window: slide the bottom of the mobile phone desktop to enter the recent task, select the application to be displayed in the small window and long press the pop-up dialog box, and click the small window icon to open the small window display. (The small window icon is gray, indicating that the application cannot be displayed in the small window at present. )