PHPhotoLibraryChangeObserver

PHPhotoLibraryChangeObserver

PHPhotoLibraryChangeObserver Protocol of Photos A protocol to adopt to have the system notify your app of changes to the photo library.

protocol PHPhotoLibraryChangeObserver : NSObjectProtocol

Overview

The PHPhotoLibraryChangeObserver protocol notifies you of changes that occur in the photo library, regardless of whether those changes are made by your app, by a user in the Photos app, or by another app that uses the Photos framework. To receive change messages, register your observer with the register(:)-6y3b9) method. For any assets or collections that you fetch, Photos sends change messages whenever those assets or collections change. Use this protocol to track changes across multiple parts of your app or respond to changes made in another app or extension.