Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
class	Photos	MBS Mac64bit Plugin	20.2	✅ Yes	❌ No	❌ No	✅ Yes	Desktop & iOS

A set of options that affect the filtering, sorting, and management of results that Photos returns when you fetch asset or collection objects.

Using class methods on the PHAssetMBS, PHCollectionMBS, PHAssetCollectionMBS, and PHCollectionListMBS classes to fetch assets or collections produces a PHFetchResultMBS object containing the requested objects. The options you specify control which objects the fetch result includes, how those objects are arranged in the fetch result, and how Photos should notify your app of changes to the fetch result.

Photos supports only a restricted set of keys for the predicate and sortDescriptors properties. The set of available keys depends on which class you’re using to fetch assets or collections—see Table 1 for the list of keys supported by each class.

Supported predicate and sort descriptor keys

Class for Fetch Method	Supported Keys
PHAsset	SELF, localIdentifier, creationDate, modificationDate, mediaType, mediaSubtypes, duration, pixelWidth, pixelHeight, favorite (or isFavorite), hidden (or isHidden), burstIdentifier
PHAssetCollection	SELF, localIdentifier, localizedTitle (or title), startDate, endDate, estimatedAssetCount
PHCollectionList	SELF, localIdentifier, localizedTitle (or title), startDate, endDate
PHCollection (can fetch a mix of PHCollectionList and PHAssetCollection objects)	SELF, localIdentifier, localizedTitle (or title), startDate, endDate

Available in MacOS 10.13 or newer.