An interface that implements an index-maintenance app extension.


class CSIndexExtensionRequestHandler : NSObject


The CSIndexExtensionRequestHandler class defines an interface you use to implement an index-maintenance app extension. An index-maintenance app extension facilitates communication between the on-device index and your app, even when your app isn’t running. For more information about using an app extension, see Using Advanced Features in the Index App Content section of the App Search Programming Guide.

See Also


class CSSearchableIndex

The on-device index.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software