swift套接字io连接到服务器，但管理器和引擎正在发布。
swift套接字io连接到服务器，但管理器和引擎正在发布。
提问于 2018-02-08 00:34:47
我正在尝试制作一个超级基本的快速应用程序，它连接到我的节点后端socket.io服务器，但是当我运行下面的代码时，会得到一个长错误，如下所示。在后端，它说，应用程序连接到服务器，但当我试图发出任何事件，我会得到另一个错误，也是下面。
快速代码：
import UIKit
import SocketIO
class ViewController: UIViewController {
@IBOutlet weak var messagesBody: UITextView!
@IBOutlet weak var newMessageInput: UITextField!
@IBOutlet weak var newMessageSubmit: UIButton!
var socket:SocketIOClient!
override func viewDidLoad() {
super.viewDidLoad()
let manager = SocketManager(socketURL: URL(string: "http://localhost:3000/chat.html?name=developer&room=test")!, config: [.log(true), .compress])
self.socket = manager.socket(forNamespace: "/")
establishSocketConnection()
newMessageSubmit.addTarget(self, action: #selector(sendNewMessage), for: .touchUpInside)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func establishSocketConnection() {
self.socket.connect()
self.socket.on("connect") { ( dataArray, ack) -> Void in
print("connected to external server")
}
}
func cloesSocketConnection() {
self.socket.disconnect()
}
@objc func sendNewMessage() {
let newMessageContent = newMessageInput.text!
print("Sending message..." + newMessageContent)
self.socket.emit("createMessage", newMessageContent)
}
}主要错误：
2018-02-07 17:53:33.809954-0500 chat-app[78163:6477441] [MC] Lazy
loading NSBundle MobileCoreServices.framework
2018-02-07 17:53:33.811229-0500 chat-app[78163:6477441] [MC] Loaded
MobileCoreServices.framework
2018-02-07 17:53:33.915820-0500 chat-app[78163:6477441] LOG
SocketIOClient{/swift}: Handling event: statusChange with data:
[connecting]
2018-02-07 17:53:33.916535-0500 chat-app[78163:6477441] LOG
SocketIOClient{/swift}: Joining namespace /swift
2018-02-07 17:53:33.918305-0500 chat-app[78163:6477441] LOG
SocketManager: Tried connecting socket when engine isn't open.
Connecting
2018-02-07 17:53:33.918627-0500 chat-app[78163:6477441] LOG
SocketManager: Adding engine
2018-02-07 17:53:33.921886-0500 chat-app[78163:6477498] LOG
SocketEngine: Starting engine. Server: http://localhost:3000/chat.html?
name=developer&room=test
2018-02-07 17:53:33.922020-0500 chat-app[78163:6477498] LOG
SocketEngine: Handshaking
2018-02-07 17:53:33.922060-0500 chat-app[78163:6477441] LOG
SocketIOClient{/swift}: Adding handler for event: connect
2018-02-07 17:53:33.922966-0500 chat-app[78163:6477441] LOG
SocketManager: Manager is being released
2018-02-07 17:53:33.924349-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: Doing polling GET
http://localhost:3000/socket.io/?transport=polling&b64=1
2018-02-07 17:53:34.014299-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: Got polling response
2018-02-07 17:53:34.016531-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: Got poll message:
97:0{"sid":"DRRfs3CyuXRDeYVIAAAA","upgrades":
["websocket"],"pingInterval":25000,"pingTimeout":60000}
2018-02-07 17:53:34.022590-0500 chat-app[78163:6477498] LOG
SocketEngine: Got message: 0{"sid":"DRRfs3CyuXRDeYVIAAAA","upgrades":
["websocket"],"pingInterval":25000,"pingTimeout":60000}
2018-02-07 17:53:34.045912-0500 chat-app[78163:6477498] LOG
SocketEngine: Writing poll: has data: false
2018-02-07 17:53:34.046635-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: Sending poll: as type: 2
2018-02-07 17:53:34.048335-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: Created POST string: 1:2
2018-02-07 17:53:34.049790-0500 chat-app[78163:6477498] LOG
SocketEnginePolling: POSTing
2018-02-07 17:53:34.050572-0500 chat-app[78163:6477498] LOG
SocketEngine: Engine is being released第二错误：
2018-02-07 17:53:37.918418-0500 chat-app[78163:6477441] LOG
SocketIOClient{/swift}: Handling event: error with data: ["Tried
emitting createMessage when not connected"]回答 1
Stack Overflow用户
回答已采纳
发布于 2018-02-08 01:37:21
您应该将SocketManager声明为存储的属性，如果不是，将在viewDidLoad之后解除分配。
通过管理器创建的套接字由管理器保留。因此，至少必须维护对管理器的单个强引用，以保持套接字正常运行。
因此，您可以使用以下内容：
class ViewController:UIViewController {
//... stuff here ...//
var manager:SocketManager?
override func viewDidLoad() {
super.viewDidLoad()
self.manager = SocketManager(socketURL: URL(string: "http://localhost:3000/chat.html?name=developer&room=test")!, config: [.log(true), .compress])
}}
此外，请更改以下文件内的命令：
func establishSocketConnection() {
self.socket.on("connect") { ( dataArray, ack) -> Void in
print("connected to external server")
}
self.socket.connect()
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48675629
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