SCCameraKitLensRepositoryGroupObserver

Objective-C

@protocol SCCameraKitLensRepositoryGroupObserver <NSObject>

Swift

protocol LensRepositoryGroupObserver : NSObjectProtocol

Allows conformers to be notified of changes to lens groups the repository has available.


                    
                    
                    -repository:didUpdateLenses:forGroupID:

Notifies that an observed group’s lenses have changed.

Note

observers may receive notifications for lens groups they do not care about. Check groupID.

Declaration

Objective-C

- (void)repository:(nonnull id<SCCameraKitLensRepository>)repository
    didUpdateLenses:(nonnull NSArray<id<SCCameraKitLens>> *)lenses
         forGroupID:(nonnull NSString *)groupID;

Swift

func repository(_ repository: any SCCameraKitLensRepository, didUpdateLenses lenses: [any SCCameraKitLens], forGroupID groupID: String)

Parameters

`repository`	the CameraKit lens repository responsible for the update.
`lenses`	the updated lenses in the group.
`groupID`	the updated group ID.


                    
                    
                    -repository:didFailToUpdateLensesForGroupID:error:

Notifies that an observed group’s lenses failed to be fetched.

Declaration

Objective-C

- (void)repository:(nonnull id<SCCameraKitLensRepository>)repository
    didFailToUpdateLensesForGroupID:(nonnull NSString *)groupID
                              error:(nullable NSError *)error;

Swift

func repository(_ repository: any SCCameraKitLensRepository, didFailToUpdateLensesForGroupID groupID: String, error: (any Error)?)

Parameters

`repository`	the CameraKit lens repository responsible for the update.
`groupID`	the updated group ID.
`error`	a detailed error message of what went wrong, if available.