在iOS和iWatch设备之间建立连接时，xCode会写下[WC] WCSession 对应的应用未安装。
经过大量研究，我找到了一个解决方案，希望对某些人有所帮助。
- Check your WatchKit Extention target.
- Uncheck "Supports Running Without iOS App Installation"
- First run iwatch simulator, than run ios simulator with checkmark
我花了大约3-4个小时来解决这个问题，看起来我的Apple watch.app从我的Target > Frameworks中不见了，所以在点击加号图标并将其添加回去后，它不再报告“WC WCSession对应的应用程序未安装”
终于搞定了。对于其他也遇到此问题的人：
In iOS Target: Make sure in General>Frameworks, Libraries & Embedded Contents> Add YourWatchApp.app if it's not in the list. (For the loop problem, do the next step)
In Watch Target: Go to BuildPhases>Copy Bundle Resources> and remove YouriOSApp.app from the list if exists.
You must set delegate and activate it from both WatchApp and iOSApp as follows:
self.session = WCSession.default
self.session.delegate = self
self.session.activate()
if you are using a helper class, Your class should implement NSObject as well:
class ConnectivityHelper: NSObject, WCSessionDelegate {
Make sure there is some seconds between calling activate method and sending message.
If you are using a reply handler when sending message from Watch, Then you must implement didReceiveMessage method in iOS App which has replyHandler, else replyHandler on the watch returns an error and the iOS app won't receive the message.
Check out this complete code that is working: iOS Part:
import WatchConnectivity
class PhoneConnectivity: NSObject {
override init() {
super.init()
let session = WCSession.default
session.delegate = self
session.activate()
}
}
extension PhoneConnectivity: WCSessionDelegate {
//MARK: Delegate Methodes
func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
}
func sessionDidBecomeInactive(_ session: WCSession) {
}
func sessionDidDeactivate(_ session: WCSession) {
}
// Receiver
func session(_ session: WCSession, didReceiveMessage message: [String : Any]) {
//without reply handler
}
func session(_ session: WCSession, didReceiveMessage message: [String : Any], replyHandler: @escaping ([String : Any]) -> Void) {
//with reply handler
}
// end Receiver
}
send message with a test string first like:
WCSession.default.sendMessage(["TEST", "TEST2"], replyHandler: { dictionary in
print(">WC> reply recieved: \(dictionary.first!.value)")
}, errorHandler: { error in
print(">WC> Error on sending Msg: \(error.localizedDescription)")
})
Most developers suggest that make session active ASAP (in iOS using didFinishLaunchingWithOptions in appDelegate of iOSApp & applicationDidFinishLaunching in WKExtensionDelegate of WatchApp)
只有在从手表设置应用程序中安装手表应用程序时，它才对我起作用。
如果我从Xcode安装手表应用程序，则iOS应用程序会给我伴侣错误消息。