WatchConnectivity，如何在iPhone和Apple Watch之间共享阵列

我试图在Swift 4中的iPhone和Apple Watch Apps之间传递一个数组，到目前为止，我一直没有成功。这是我尝试遵循的一些示例，但均未成功。在这些示例中，它们没有包含很多功能，但是当我尝试编写它时，它会在does not conform to protocols声明监视会话时另外产生错误。它未正确声明，因此didRecieveApplicationContext在Swift 4中与如其他问题/示例所示链接 Link2

这是我的iPhone ViewController

import UIKit
import WatchConnectivity

class watchtimetablemaker: UIViewController, WCSessionDelegate {

func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
}

func sessionDidBecomeInactive(_ session: WCSession) {
}

func sessionDidDeactivate(_ session: WCSession) {
}


var watchSession: WCSession?
var initalArray = [String]()
var combination = ""
var vdlArray = [String]()


@IBAction func Save(_ sender: Any) {

    vdlArray.removeAll()

//here I edit the arrays, add instances etc. cut out for fluency

    self.view.endEditing(true)

    sendToWatch()

    UserDefaults.standard.set(vdlArray, forKey: "vdlarray")
    UserDefaults.standard.synchronize()

    print(initalArray)
    print(vdlArray)

}

func sendToWatch(){
    do{
        let appDictionary = ["Array": initalArray]
        try WCSession.default.updateApplicationContext(appDictionary)
    }
    catch {
        print(error)
    }
}

override func viewDidLoad() {
    super.viewDidLoad()

    if (WCSession.isSupported()){
        watchSession = WCSession.default
        watchSession?.delegate = self
        watchSession?.activate()
    }

    vdlArray = UserDefaults.standard.array(forKey: "vdlarray") as! [String]

    print(vdlArray)

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}
}

这是Apple Watch Controller

import WatchKit
import Foundation
import WatchConnectivity


class TimetableWatch: WKInterfaceController, WCSessionDelegate {

func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
    load()
}

@IBOutlet var tabletitle: WKInterfaceTable!
var watchSession: WCSession?
var tableData = [String]()

override func awake(withContext context: Any?) {
    super.awake(withContext: context)

    if (WCSession.isSupported()){
        watchSession = WCSession.default
        watchSession?.delegate = self
        watchSession?.activate()
    }

    load()

    tabletitle.setNumberOfRows(tableData.count, withRowType: "Cell")

    var i = 0
    for item in tableData {
        let row = tabletitle.rowController(at: i) as! TableCellRow

        row.tbalecelllabel.setText(item)

        i = i + 1
    }
}

func load(){

    func session(session: WCSession, didRecieveApplicationContext applicationContext: [String : Any]) {

        DispatchQueue.main.async() { () -> Void in
            if let retreivedArray = applicationContext["Array"] as? [String] {
                self.tableData = retreivedArray
                print(self.tableData)
            }
        }
    }
}

override func willActivate() {
    super.willActivate()
}

override func didDeactivate() {
    super.didDeactivate()
}
}

我找不到与swift4相关的任何文档，因此，我们将不胜感激。