我有一个iPhone应用程序,可以将iPhone应用程序中的数据直接发送到表盘,以显示为复杂功能。
我使用WatchConnectivity
框架创建一个WCSession
,通过手机将数据发送到手表。
我的数据存储在字典中,并使用WCSession
的transferCurrentComplicationUserInfo
方法发送到手表。 (这种方法可以每天使用50次,我知道这一点 - 这不是问题。)
transferCurrentComplicationUserInfo
方法似乎第一次尝试发送数据。
我的问题是我的iPhone应用程序是在一个会话中多次调用此函数,它只能在第一次可靠地工作。
当我发送第二组数据时,第一组仍然是并发症。通常,当我发送第三组时,会出现第二组。有时第二组看起来是永久性的,有时它只会在显示第三组之前短暂出现。
这是不一致的,这就是我遇到的问题。
有什么我设置不正确吗?
码:
//iPhone code to send data to Apple Watch:
func sendComplication(complication: Complication) {
guard let session = session else {
delegate?.failedToSendComplication(reason: "Could not connect to your Apple Watch.")
return
}
guard let context = convertComplicationToDictionary(complication: complication) else {
delegate?.failedToSendComplication(reason: "Couldn't cast complication to a dictionary.")
return
}
if session.remainingComplicationUserInfoTransfers > 0 {
session.transferCurrentComplicationUserInfo(context)
delegate?.didSendComplication()
} else {
delegate?.failedToSendComplication(reason: "Due to hardware limitations, you can only send a certain amount of complications in a day. You have exceeded that limit for today. You can still set complications from the Apple Watch app.")
}
}
// WatchKit Extension Delegate to receive and handle data sent from iPhone app
import WatchKit
import WatchConnectivity
class ExtensionDelegate: NSObject, WKExtensionDelegate {
var session: WCSession?
override init() {
super.init()
self.session = newWatchConnectivitySession()
}
func newWatchConnectivitySession() -> WCSession? {
if WCSession.isSupported() {
let session = WCSession.default
session.delegate = self
session.activate()
return session
}
return nil
}
func reloadComplicationTimeline() {
let server = CLKComplicationServer.sharedInstance()
guard let activeComplicationFamilies = server.activeComplications else { return }
for comp in activeComplicationFamilies {
server.reloadTimeline(for: comp)
}
}
}
extension ExtensionDelegate: WCSessionDelegate {
func sessionReachabilityDidChange(_ session: WCSession) {
if session.activationState != .activated {
self.session = newWatchConnectivitySession()
}
}
// Receive info from iPhone app
func session(_ session: WCSession, didReceiveUserInfo userInfo: [String : Any] = [:]) {
// Parse dictionary and update data source
reloadComplicationTimeline()
}
func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
guard let error = error else { return }
print(error.localizedDescription)
}
}
//更新//
经过进一步检查,我现在看到步骤正在发生故障。
这是一系列事件:
sendComplication
ExtensionDelegate
在Watch应用程序上初始化,设置了WCSession
WCSession
收到新数据之前)WCSession didReceiveUserInfo
委托方法,解析数据,更新数据源(太晚)正如您在更新中描述的那样,您的iPhone应用程序会在手表设置session.transferCurrentComplicationUserInfo(context)
之前调用WCSession
。但文档说:
[transferCurrentComplicationUserInfo(_ :)]只能在会话处于活动状态时调用 - 也就是说,activationState属性设置为WCSessionActivationState.activated。为非活动或停用的会话调用此方法是程序员错误。
因此,我建议您实施(如果您还没有这样做)WCSessionDelegate
函数session(_:activationDidCompleteWith:error:)
(请参阅here),并仅在激活会话后传输并发症数据。
请尝试以下方法:
func reloadComplicationTimeline() {
#if os(watchOS)
let server = CLKComplicationServer.sharedInstance()
if let activeComplicationFamilies = server.activeComplications {
for comp in activeComplicationFamilies {
server.reloadTimeline(for: comp)
}
#endif
}
func sendComplication(complication: Complication) {
guard WCSession.default.activationState == .activated else {
delegate?.failedToSendComplication(reason: "Could not connect to your Apple Watch.")
return
}
guard let context = convertComplicationToDictionary(complication: complication) else {
delegate?.failedToSendComplication(reason: "Couldn't cast complication to a dictionary.")
return
}
#if os(iOS)
if WCSession.default.isComplicationEnabled {
let userInfoTranser = WCSession.default.transferCurrentComplicationUserInfo(context)
delegate?.didSendComplication()
} else {
delegate?.failedToSendComplication(reason: "Due to hardware limitations, you can only send a certain amount of complications in a day. You have exceeded that limit for today. You can still set complications from the Apple Watch app.")
}
#endif
}
这是Apple的一个很好的例子,可以帮助你更多:source
重置iPhone,Apple Watch和Mac解决了这个问题。