If you want some applications to run all the time, you can set them as background protection, as follows:
EMUI 8。 X: Go to Mobile Manager > Start Management, find the corresponding application, and turn off automatic management. Among the three options that pop up, the background activity switch will be allowed to open.
EMUI 5。 X: Enter the mobile phone housekeeper interface, click the remaining xx%> screen locking and cleaning application, and turn off the switch that needs to run the application in the background.
If you want to keep the application running in the background after cleaning the background, I suggest you click the lock icon above the application in the background to lock the application in the background.
Note: If the power-saving mode is set to Super Power-saving, the Super Power-saving mode will automatically enable the relevant strategies to save power, even if you set the protected application, it may be closed after the screen is locked.