A set of options affecting the delivery of still image representations of Photos assets you request from an image manager.
SDKs
- iOS 8.0+
- macOS 10.13+
- tvOS 10.0+
Framework
- Photos
Declaration
class PHImageRequestOptions : NSObject
ClassPHImage
PHImage
Topics
Scheduling an Image Request
var isA Boolean value that determines whether Photos processes the image request synchronously.
Specifying Image Request Options
var version: PHImageThe version of the image to be requested.
enum PHImageOptions for requesting an image asset with or without adjustments, used by the version property.
var deliveryThe requested image quality and delivery priority.
enum PHImageOptions for delivering requested image data, used by the delivery property.
var resizeA mode that specifies how to resize the requested image.
enum PHImageOptions for how to resize the requested image to fit a target size, used by the resize property.
var normalizedA rectangle for requesting a cropped version of the original image.
Fetching Image Data from iCloud
var isA Boolean value that specifies whether Photos can download the requested image from iCloud.
var progressA block that Photos calls periodically while downloading the image.
typealias PHAssetThe signature for a block that Photos calls while downloading asset data from iCloud. Used by the progress property.
See Also
Asset Loading
Loading and Caching Assets and Thumbnails
Request image, video, or Live Photos content, and cache for quick reuse.
class PHImageAn object that facilitates retrieving or generating preview thumbnails and asset data.
class PHCachingAn object that facilitates retrieving or generating preview thumbnails, optimized for batch preloading large numbers of assets.
class PHVideoA set of options affecting the delivery of video asset data that you request from an image manager.
class PHLiveA set of options affecting the delivery of Live Photo assets you request from an image manager.