如何从接收到的消息中获取MSMessage摘要文本？

Question

我是在MSMessage中传递摘要消息，但当试图获取在另一端接收的消息时，它将返回零。

下面的是创建消息的代码。

fileprivate func composeMessage(with url: String, andEventInfo eventInfo: NSDictionary?) -> MSMessage {

    let message = MSMessage(session:MSSession())
    message.url = URL(string: url)
    message.layout = createTemplateForEvent(eventInfo: eventInfo!)
    message.summaryText = "SAMPLE MESSAGE"
    return message
}

在当前会话中发送消息

let message = composeMessage(with: url!,andEventInfo: eventInfo)
    activeConversation?.insert(message, completionHandler: { (error) in

        print(error)
    })

现在，在接收端

这里，summaryText返回零。

override func didReceive(_ message: MSMessage, conversation: MSConversation) {

     print("DID RECEIVE MESSAGE: \(message.summaryText)")        
}

同样，当用户点击消息时，它也返回零。

override func willTransition(to presentationStyle: MSMessagesAppPresentationStyle) {
    guard let conversation = activeConversation else { fatalError("Expected an active converstation") }

    // Present the view controller appropriate for the conversation and presentation style.
    if presentationStyle == .expanded {

        if conversation.selectedMessage != nil {

            print(conversation.selectedMessage?.summaryText)

            presentViewController(for: conversation, with: presentationStyle)
        }

    }

}

有谁知道，为什么会发生这种事，或者什么事情出了问题？

Answer 1

希望这会有帮助

override func didReceive(_ message: MSMessage, conversation: MSConversation) {
// Called when a message arrives that was generated by another instance of this
// extension on a remote device.

// Use this method to trigger UI updates in response to the message.
guard let messageURL = message.url else { return }
guard let urlComponents = NSURLComponents(url: messageURL, resolvingAgainstBaseURL: false), let queryItems = urlComponents.queryItems else { return }

print("URL Components", urlComponents)
print("queryItems", queryItems)

for item in queryItems {
    print("Received \(item.name) with value \(item.value)")
}

}

资料来源：https://www.hackingwithswift.com/ios10

也可以参考：iOS10 iMessage : Unable to insert data into iMessage using MSConversation