Creates a request for modifying the specified asset.
- iOS 8+
- macOS 10.15+
- Mac Catalyst 13.0+
- tvOS 10+
The asset to be modified.
An asset change request.
Before editing an asset, use its
can method to see if the asset allows editing.
After you create a change request within a photo library change block, propose changes to the original asset’s properties by setting the corresponding properties of the change request. After Photos runs your change block, the asset’s properties reflect your changes. For details on change blocks, see
To edit an asset’s image or video content, first begin a content editing session with the asset’s
request method. You commit a content edit by setting the
content property of a change request within a change block. For more information about asset content editing, see