How to reference non-supported frameworks in Watch OS 2

Question

I updated my app to the latest swift 2.0 syntax. In doing so, My watchkit app has become broken. The issue is the watchkit app references a class that references the framework A

Answer 1

This is an example on how you could use WatchConnectivity for your app.

Please not that this example is rough and does not handle error. The session management should also get some attention for a stable product.

iPhone AppDelegate

import UIKit
import WatchConnectivity
import AVFoundation
import RSBarcodes

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, WCSessionDelegate {

  var window: UIWindow?


  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {

    // Override point for customization after application launch.

    if WCSession.isSupported() {
      let session = WCSession.defaultSession()
      session.delegate = self
      session.activateSession()
    }

    return true
  }

  // On Watch sends the message.
  // Will not reply as we will push a data message with image.
  func session(session: WCSession, didReceiveMessage message: [String : AnyObject]) {
    if "generateBarcode" == message["id"] as! String {
      let code = message["code"] as! String
      let barcodeImage = RSUnifiedCodeGenerator.shared.generateCode(code,
        machineReadableCodeObjectType: AVMetadataObjectTypeCode39Code)!

      if WCSession.isSupported() {
        let session = WCSession.defaultSession()
        session.delegate = self
        session.activateSession()

        session.sendMessageData(UIImagePNGRepresentation(barcodeImage)!,
          replyHandler: nil, errorHandler: nil)
      }
    }
  }
}

Watch InterfaceController

import WatchKit
import Foundation
import WatchConnectivity

class InterfaceController: WKInterfaceController, WCSessionDelegate {

  @IBOutlet var barcodeImage: WKInterfaceImage!

  override func willActivate() {
    super.willActivate()

    if WCSession.isSupported() {
      let session = WCSession.defaultSession()
      session.delegate = self
      session.activateSession()

      // Send a message requesting a barcode image
      session.sendMessage(
        ["id": "generateBarcode", "code": "2166529V"],
        replyHandler: nil, // Do not handle response, iPhone will push a data message
        errorHandler: nil)
    }
  }

  // On iPhone pushes a data message
  func session(session: WCSession, didReceiveMessageData messageData: NSData) {
    barcodeImage.setImage(UIImage(data: messageData))
  }
}

Answer 2

I think that using WatchConnectivity is the right thing to do. For previous version support if the only dealer breaker is AVMetadataObjectTypeCode39Code, maybe you can print its value and pass it to the function directly?