插入消息，iMessage应用程序快捷3

Question

因此，基本上，我一直在尝试创建一个非常简单的iMessage应用程序，当按下按钮时，它会向会话中插入一条消息，就像在本教程中所看到的那样:我所面临的唯一问题是，当按下按钮时，它会运行该函数，但是，结果不会发生任何事情，我真的不知道为什么会这样。有一段时间，我一直在努力寻找解决这个问题的有效方法，如果有人能快速查看我的代码，指出我哪里出错了，或者我遗漏了什么，我会非常感激的。任何关于这个话题的帮助都将不胜感激，谢谢。

 @IBAction func funcSend(_ sender: Any) {

    let conversation = activeConversation
    let session = conversation?.selectedMessage?.session

    let layout = MSMessageTemplateLayout()
    layout.caption = "Hi there"

    var components = URLComponents()
    let queryItem = URLQueryItem(name: "key", value: "value")
    components.queryItems = [queryItem]

    let message = MSMessage(session: session!)
    message.layout = layout
    message.url = components.url
    message.summaryText = "Sent hi there message"

    conversation?.insert(message)

}

Answer 1

看上去是对的，试着在结尾打电话解散()？

这是适用于我的代码

@IBAction func onSend(_ sender: Any) {
    print("sending...")
    guard let conversation = activeConversation else { fatalError("Expected a conversation") }
    guard let message = composeMessage(session: conversation.selectedMessage?.session)
        else { return }

    // Add the message to the conversation.
    conversation.insert(message) { error in
        if let error = error {
            print(error)
        }
    }
    // This one
    dismiss()
}

以及我是如何创造信息的

// MARK: Messaging
func composeMessage(session: MSSession? = nil) -> MSMessage? {
    let layout = MSMessageTemplateLayout()
    var components = URLComponents()
    let caption = URLQueryItem(name: "caption", value: self.melody)
    let decodedMelody = URLQueryItem(name: "melody", value: self.melody)

    components.queryItems = [caption, decodedMelody]

    let message = MSMessage(session: session ?? MSSession())
    layout.image = self.screenImage.image

    layout.caption = "Melody built with haptic and vibro."
    layout.subcaption = "sent via iVibrio"
    message.summaryText = "something summary"

    if let conversation = activeConversation,
        let msg = conversation.selectedMessage{

        if msg.senderParticipantIdentifier == conversation.localParticipantIdentifier {
            layout.caption =  "$\(msg.senderParticipantIdentifier.uuidString) My msg"
        }
        else{
            layout.caption =  "$\(msg.senderParticipantIdentifier.uuidString) Edited msg"
        }
    }

    message.url = components.url!
    message.layout = layout

    return message
}

链接到完整的示例/代码