A user-readable string describing the service.
A string that describes the service.
This method returns
nil by default. Subclasses must override this method and return a user-readable string that describes the service. The string you return should be localized.
Getting the Activity Information
Returns the category of the activity, which may be used to group activities in the UI.
Activities have a defined category, and the activity UI may show activities grouped by category.
An identifier for the type of service being provided.
Activity types for which the system has built-in support.