PHAsset unique identifier across devices.

Media Technologies Photos & Camera
DaveWhipps OP
Created Aug ’23
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I know that I can uniquely identify a PHAsset on a given device using localIdentifier but if that asset is synched (through iCloud, say) to another device, how to I uniquely identify that asset across multiple devices?

My app allows users to store their images in the standard photo gallery, but I have no way of referring to them when they sync their app profile to another iOS device with my app installed.

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DaleOne OP
Aug ’23

Have you tried looking at PHCloudIdentifier? It allows you to identify an asset synced via iCloud.

https://developer.apple.com/documentation/photokit/phcloudidentifier

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Engineer OP
Apple
Aug ’23

PHCloudIdentifier is meant for this exact use case. Check out the documentation and WWDC talk from 2021:

https://developer.apple.com/documentation/photokit/phcloudidentifier

https://developer.apple.com/wwdc21/10046

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PHAsset unique identifier across devices.
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