在接口watchOS 2之间传递数据

Question

我在watchOS上的2个接口控制器之间传递数据时遇到了一些困难，这是我的代码：

接口控制器

import WatchKit
import Foundation
import CoreLocation


class InterfaceController: WKInterfaceController, CLLocationManagerDelegate {

    let locationManager : CLLocationManager = CLLocationManager()
    private var lat : Double!
    private var long : Double!



    override func awakeWithContext(context: AnyObject?) {
        super.awakeWithContext(context)
        self.locationManager.delegate = self
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
        self.locationManager.requestWhenInUseAuthorization()
        self.locationManager.requestLocation()
        // Configure interface objects here.
    }

    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user
        super.willActivate()


    }

    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
        super.didDeactivate()
    }

    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
    {
        let currentLocation: CLLocation = locations[0]
        lat = currentLocation.coordinate.latitude
        long = currentLocation.coordinate.longitude
    }

    func locationManager(manager: CLLocationManager, didFailWithError error: NSError)
    {
        print("Error: " + error.localizedDescription)
    }

    override func contextForSegueWithIdentifier(segueIdentifier: String) -> AnyObject? {

            return [lat,long]
        }


}

目的地控制器

import WatchKit
import Foundation
import MapKit
import CoreLocation


class ZEROPOINTFIVEInterfaceController: WKInterfaceController, CLLocationManagerDelegate {

   @IBOutlet var mapViewZ: WKInterfaceMap!
       let locationManager : CLLocationManager = CLLocationManager()

    var lat: Double!
    var long: Double!



    override func awakeWithContext(context: AnyObject?) {
        super.awakeWithContext(context)
        if let strings = context as? [String] {
            lat = Double(strings[0])
            long = Double(strings[1])
        }
        let location = CLLocationCoordinate2D(latitude: lat, longitude: long)
        let coordinateSpan = MKCoordinateSpan(latitudeDelta: 0.2, longitudeDelta: 0.2)
        mapViewZ.setRegion(MKCoordinateRegion(center: location, span: coordinateSpan))

        // Configure interface objects here.
    }

    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user
        super.willActivate()


    }

    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
        super.didDeactivate()
    }

}

我想传递lat和long。但是当我在模拟器中运行它时，它是零。请帮忙。