JSQMessagesViewController + Firebase (3.4.0)

Question

I recently upgraded my project from Firebase (2.5.1) to Firebase (3.4.0) , setting the following in my subfile:

pod 'Firebase / Database'

pod 'Firebase / Core'

pod 'Firebase / Auth'

Based on the foregoing, I updated my project in accordance with the FirebaseDatabase documentation , since my application mainly uses the database and real-time authentication.

At the moment, I am having very complex errors, and I could not perform the following actions:

private func observeMessages() {
    let messagesQuery = messageRef.queryLimitedToLast(25)
    messagesQuery.observeEventType(.ChildAdded, withBlock: { snapshot in

        let id = snapshot.value!["senderId"] as! String
        let text = snapshot.value!["text"] as! String

        self.addMessage(id, text: text)

        self.finishReceivingMessage()
    })
}

I tried to fix it, to the extent possible, to no avail and my application continues to crash because of this

, Firebase (2.5.1) podfile, , .

- , , , - . .

8/25/16

:

private func observeMessages() {
    let messagesQuery = messageRef.queryLimitedToLast(25)
    messagesQuery.observeEventType(.ChildAdded) { (snapshot: FIRDataSnapshot!) in
        if let id = snapshot.value!["senderId"] as? String, text = snapshot.value!["text"] as? String {
        self.addMessage(id, text: text)
        self.finishReceivingMessage()
      }
    }
  }

Answer 1

:

private func observeMessages() {
let messagesQuery = messageRef.queryLimitedToLast(25)
messagesQuery.observeEventType(.ChildAdded) { (snapshot: FIRDataSnapshot!) in
    if let id = snapshot.value!["senderId"] as? String, text = snapshot.value!["text"] as? String {
    self.addMessage(id, text: text)
    self.finishReceivingMessage()
      }
    }
  }