WCSession sendMessageData不在watchOS 3中工作

Question

我正在尝试将图像从iOS发送到watchOS，并且我得到了以下错误。

sendMessageData获取错误:错误Domain=WCErrorDomain Code=7014“无法传递有效载荷。无法传递UserInfo={NSLocalizedDescription=Payload。

我在ViewController类中的代码

var session: WCSession?
    override func viewDidLoad() {
        super.viewDidLoad()
        session?.delegate = self
        if (WCSession.isSupported()) {
            session = WCSession.default()
            session?.delegate = self
            session?.activate()
        }

    }

     let image = UIImage(named: "img1")!
     let data = UIImagePNGRepresentation(image)
     session?.sendMessageData(data!, replyHandler: { (data) in
          print(data)
        }) { (error) in
            print(error)}
}

在InterfaceController类中

  override func willActivate() {
        super.willActivate()
        if (WCSession.isSupported()) {
            session = WCSession.default()
            session.delegate = self
            session.activate()
        }
    }

 func session(_ session: WCSession, didReceiveMessageData messageData: Data) {
        guard let image = UIImage(data: messageData) else {
            return
        }
        print(image)
 }

谢谢,

Answer 1

我认为您需要尝试下面的协议，如提到的这里。

 func session(_ session: WCSession, didReceiveMessageData messageData: Data, replyHandler: @escaping (Data) -> Void) {

    guard let image = UIImage(data: messageData) else {
        return
    }

    print(image)
    imageSet.setImage(image)
}