An ALAsset object represents a photo or a video managed by the Photo application.
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SDK
Assets can have multiple representations, for example a photo which was captured in RAW and JPG. Different representations of the same asset may have different dimensions.
func value(forProperty: String!)Returns the value for a given property.
var isEditable: BoolIndicates whether the asset is editable.
var original: ALAsset!The original version of the asset.
func defaultRepresentation()Returns an asset representation object for the default representation.
func representation(forUTI: String!)Returns an an asset representation object for a given representation UTI.
func thumbnail()Returns a thumbnail representation of the asset.
func aspectRatioThumbnail()Returns an aspect ratio thumbnail of the asset.
func setImageData(Data!, metadata: [AnyHashable : Any]!, completionBlock: ALAssetsLibraryWriteImageCompletionBlock!)Replaces the image data in the receiver with given image data
func setVideoAtPath(URL!, completionBlock: ALAssetsLibraryWriteVideoCompletionBlock!)Replaces the video data in receiver with the video at a given URL.
func writeModifiedImageData(toSavedPhotosAlbum: Data!, metadata: [AnyHashable : Any]!, completionBlock: ALAssetsLibraryWriteImageCompletionBlock!)Saves image data to the Saved Photos album.
func writeModifiedVideoAtPath(toSavedPhotosAlbum: URL!, completionBlock: ALAssetsLibraryWriteVideoCompletionBlock!)Saves the video at a specified path to the Saved Photos album.
Constants for the keys for the properties you can get from an asset.
A constant to indicate that a property accessed by value(forProperty:) is invalid.
Constants that specify the type of an asset.