Enumeration Case


The default quality-of-service class.


case `default`


Default tasks have a lower priority than user-initiated and user-interactive tasks, but a higher priority than utility and background tasks. Assign this class to tasks or queues that your app initiates or uses to perform active work on the user's behalf.

See Also

Quality-of-Service Classes

case userInteractive

The quality-of-service class for user-interactive tasks, such as animations, event handling, or updating your app's user interface.

case userInitiated

The quality-of-service class for tasks that prevent the user from actively using your app.

case utility

The quality-of-service class for tasks that the user does not track actively.

case background

The quality-of-service class for maintenance or cleanup tasks that you create.

case unspecified

The absence of a quality-of-service class.