Sharing Multiple Links at Once on Mac Catalyst Via UIActivityViewController for the Messages Activity?

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Created Dec ’22

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Is it possible to share multiple links at once on Mac Catalyst to Messages? When I provide multiple urls via the UIActivityItemSource API Messages just picks 1 of the links.

The Mail activity handles multiple links without a problem but I'd like this to work with Messages too. I know for sure this is possible in native AppKit but can't seem to figure out how to get this to work on Catalyst.

I tried providing the links to UIActivityViewController with a UIActivityItemsConfiguration object instead of using the UIActivityItemSource API but that didn't work either.

Thanks in advance

Answered by Macho Man Randy Savage in 740336022

YES IT IS POSSIBLE! EXCELLENT!

Here's something that might be a Catalyst bug, but who knows what they'll say really. My UIActivityItemSource wasn't handling the Messages situation properly because -activityViewController:itemForActivityType: passes in @"com.apple.share.Messages.window" on Catalyst when the Messages activity is selected. This does not match the UIActivityTypeMessage constant, which is @"com.apple.UIKit.activity.Message".

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Macho Man Randy Savage OP

Dec ’22

Accepted Answer

YES IT IS POSSIBLE! EXCELLENT!

Here's something that might be a Catalyst bug, but who knows what they'll say really. My UIActivityItemSource wasn't handling the Messages situation properly because -activityViewController:itemForActivityType: passes in @"com.apple.share.Messages.window" on Catalyst when the Messages activity is selected. This does not match the UIActivityTypeMessage constant, which is @"com.apple.UIKit.activity.Message".

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