如何检测哪个用户是来自 iOS iMessage 扩展的消息的发件人？

Question

I recently started work on my iMessage extension for my app.

If one user sends the message and the other will receive it, how can I receive data from the user who sent the message and change my UI accordingly? The data is only a string. I am not sure how to to detect if the activeMessage was from the sender or the receiver.

Answer 1

A MSMessage has a property var senderParticipantIdentifier: UUID that will give you the UUID of message author. That information can be compared to the MSConversation information. The MSConversation has properties for var localParticipantIdentifier: UUID

A UUID that identifies the user on this device.

and var remoteParticipantIdentifiers: [UUID]

An array of UUIDs representing the remote participants in this conversation.

There is a great deal of available info in the Docs for the Messages framework .