我创建了一个简单的swift类:
import Foundation
import WatchConnectivity
class WatchCommunication : NSObject, WCSessionDelegate {
var session: WCSession!
override init() {
super.init()
if WCSession.isSupported() {
print("WCSession is supported")
self.session = WCSession.default
self.session.delegate = self
if session.activationState == WCSessionActivationState.activated {
print("activationState is activated")
} else {
print("activationState is not activated")
self.session.activate()
}
} else {
print("WCSession is not supported")
}
}
func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
print("activationState", activationState.rawValue)
print(error)
}
}
在我的Watch App Extension中,我加载创建此类的实例
class ExtensionDelegate: NSObject, WKExtensionDelegate {
let watchCommunication: WatchCommunication = WatchCommunication()
// ...
当我在模拟器中测试此代码时,我看到以下记录
WCSession is supported
activationState is not activated
activationState 2
nil
一切正常 . 当我在测试iPhone X上运行相同的应用程序并配对Apple Watch 3时,日志显示
WCSession is supported
activationState is not activated
所以看来这个方法
func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
从来没有在我的Apple Watch上调用过 .
方法如
func session(_ session: WCSession, didReceiveApplicationContext applicationContext: [String : Any]) {
也没有在设备上调用(但正在模拟器上工作) .
在iPhone X方面,调用 actionDidCompleteWith
方法, activationState
2( activated
)和 updateApplicationContext
不会抛出错误 .
然而,iPhone和Apple Watch之间存在通信,因为方法https://developer.apple.com/documentation/healthkit/hkhealthstore/1648358-startwatchapp确实开始在 Watch 上进行锻炼(所有Apple和第三方 Watch 应用程序都能正常工作) .
1 回答
供进一步参考:
重新启动我的Apple Watch(我还没做其他事情)确实解决了这个问题......