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這是使用Singleton管理Swift 3套接字連接的正確方法嗎？Swift 3 Singleton Manager套接字連接
我在哪裏啓動套接字連接，以便我不必每次都在Viewcontroller生命週期中重新連接？ Viewcontroller不斷地向我的服務器發送數據;我的應用程序是客戶端和它的收集數據;它從應用程序中獲取移動數據併發送方向，電源等。
我已經搜索和搜索，但找不到具體示例;我只找到套接字庫，但沒有關於如何將它與UIViewcontroller一起使用的例子;另外，網上的大多數例子都使用websockets，我不是
有什麼建議嗎？
我希望這將工作：
manager.messageReceived(message: "Testing...")
，但我擔心的是，UIViewController類裏面，它會自動重新啓動的連接;另外，我不確定在哪一點我應該檢查連接是否丟失以及再次連接的位置;因爲我從來沒有關閉套接字
感謝
單例類：
import Darwin
import Foundation
class ChatManager {
// Add property for socket
private var control_socket: Int32
private var address = "000.000.0.000"
private var port = "0000"
class var sharedInstance: ChatManager {
struct Singleton { static let instance = ChatManager() }
return Singleton.instance
}
init() {
// Create the socket
self.control_socket = connectToServer(atAddress: self.address, atPort: self.port)
}
func sendMessage(message: String) {
// Push the message onto the socket
_ = write(self.control_socket, message, message.characters.count)
}
// Delegate methods
func messageReceived(message: String) {
// Emit the message using NSNotificationCenter
}
}
的UIViewController：
import Darwin
import Foundation
import UIKit
import Dispatch
class ViewController: UIViewController {
@IBOutlet private weak var joystickMove: Joystick!
@IBOutlet private weak var joystickRotate: Joystick!
private var contour = Contours()
private var contour_index: Int = 0
private let manager = ChatManager.sharedInstance
override func viewDidLoad() {
super.viewDidLoad()
createJoystick()
createContours()
createButton()
}
private func createJoystick() {
var joystick = Joystick()
let n: CGFloat = 100.0
let x: CGFloat = (UIScreen.main.bounds.width/2) - (n/2.0)
let y: CGFloat = UIScreen.main.bounds.height - (UIScreen.main.bounds.height/4.0)
joystick.frame = CGRect(x: x, y: y, width: n, height: n)
joystick.backgroundColor = UIColor.clear
joystick.substrateColor = UIColor.lightGray
joystick.substrateBorderColor = UIColor.gray
joystick.substrateBorderWidth = 1.0
joystick.stickSize = CGSize(width: 50.0, height: 50.0)
joystick.stickColor = UIColor.darkGray
joystick.stickBorderColor = UIColor.black
joystick.stickBorderWidth = 2.0
joystick.fade = 0.5
var packet = ""
joystick.trackingHandler = { (data) ->() in
let power = sqrt(pow(Double(data.velocity.x), 2.0) + pow(Double(data.velocity.y), 2.0))
let theta = atan2(Double(-data.velocity.y), Double(data.velocity.x))
let degrees = theta * (180.0/M_PI)
if degrees >= 55 && degrees <= 125 { // move forward
packet = "\(1) \(1) \(power) \(power)"
} else if degrees >= -125 && degrees <= -55 { // move backewards
packet = "\(-1) \(-1) \(power) \(power)"
} else if degrees >= -55 && degrees <= 55 { // turn right
packet = "\(1) \(-1) \(power) \(power)"
} else if (degrees >= 125 && degrees <= 180) && (degrees >= -180 && degrees <= -125) { // turn left
packet = "\(-1) \(1) \(power) \(power)"
}
}
manager.messageReceived(message: "Testing...")
view.addSubview(joystick)
}
}