PHFetchResultChangeDetails

PHFetchResultChangeDetails

PHFetchResultChangeDetails Class of Photos A description of changes that occurred in the set of asset or collection objects listed in a fetch result.

class PHFetchResultChangeDetails<ObjectType> where ObjectType : PHObject

Overview

A PHFetchResultChangeDetails object provides detailed information about the differences between two fetch results—one that you previously obtained and an updated one that would result if you performed the same fetch again. The change details object provides information useful for updating a UI that lists the contents of a fetch result, such as the indexes of added, removed, and rearranged objects.