当呼叫者停止呼叫时取消来电

Question

我希望在呼叫者被取消并且接收方还没有应答之后停止来电通知，所以我收到用户通过另一个具有missingCall键的推包通知取消了呼叫。问题是，第一次尝试取消呼叫者的呼叫是成功的，并停止了callkit通知，但在此之后，任何呼叫都不会被取消，直到我完全终止应用程序，并且相同的事情只发生第一次成功。

这是密码

func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void) {
    print("didReceiveIncomingPushWith payload")
    
    let payloadDictionary = payload.dictionaryPayload as NSDictionary
    callOption.callData = payloadDictionary.value(forKey: "aps") as! [String : Any]
    let user = callOption.callData["user"] as! [String  : Any]
    let callerID = user["name"] as! String
    let hasVideo  = true 
    let callUpdate = CXCallUpdate()
    let uuid = UUID()
    callUpdate.remoteHandle = CXHandle(type: .generic, value: callerID)
    callUpdate.hasVideo = hasVideo
          DispatchQueue.global().async {
        self.callOption.ringingApi(otherId: self.callOption.callData["snd_id"] as! String)
    }

    let backgroundTaskIdentifier = UIApplication.shared.beginBackgroundTask(expirationHandler: nil)
    if callOption.callData["typeCall"] as! String == "missingCall" {
        self.endIncomingCall(userId: callOption.callData["snd_id"] as! String)
        UIApplication.shared.endBackgroundTask(backgroundTaskIdentifier)
        
    }
    else {
        self.displayIncomingCall(uuid: uuid, handle: callerID, hasVideo: hasVideo, userId: callOption.callData["snd_id"] as! String) { _ in
                       UIApplication.shared.endBackgroundTask(backgroundTaskIdentifier)
                   }
    }

}

这里是上面调用的函数

 func displayIncomingCall(uuid: UUID, handle: String, hasVideo: Bool, userId: String, completion: ((NSError?) -> Void)? = nil) {
    providerDelegate?.reportIncomingCall(uuid: uuid, handle: handle, hasVideo: hasVideo, userId: userId, completion: completion)
    }
func endIncomingCall( userId: String) {
    providerDelegate?.reportTheCallerEndCall( userId: userId)
    }

这是提供者委托

 /// Use CXProvider to report the incoming call to the system
func reportIncomingCall(uuid: UUID, handle: String, hasVideo: Bool, userId: String, completion: ((NSError?) -> Void)? = nil) {
       // Construct a CXCallUpdate describing the incoming call, including the caller.
       let update = CXCallUpdate()
       update.remoteHandle = CXHandle(type: .phoneNumber, value: handle)
       update.hasVideo = hasVideo
       provider.reportNewIncomingCall(with: uuid, update: update) { error in
       
           if error == nil {
               let call = Call(uuid: uuid, handle: handle, userId: userId)
               

               self.callManager.add(call: call)
           }
           
           completion?(error as NSError?)
       }
   }

func reportTheCallerEndCall(userId: String) {
    guard let callIndex = self.callManager.findCallIndexInCallsArray(userId: userId) else { return}
    provider.reportCall(with: self.callManager.calls[callIndex].uuid, endedAt: nil, reason: .unanswered)
}

Answer 1

我可以在您的代码中看到至少两个问题。

1. 您不需要使用后台任务来处理传入呼叫，所有这些都是由PushKit和CallKit框架自动处理的。

1. ，您不调用pushRegistry(_:didReceiveIncomingPushWith:for:completion:)函数的completion处理程序。您可能知道，当您接收到VoIP推送时，您必须报告一个新的来电，否则系统将不会在未来向您传递任何其他VoIP推送。如果您没有在完成completion函数的过程中调用push reportNewIncomingCall处理程序，系统会认为即使您仍然这样做，也无法报告调用。

self.displayIncomingCall(uuid: uuid, handle: callerID, hasVideo: hasVideo, userId: callOption.callData["snd_id"] as! String, completion: completion)

删除后台任务开始/结束，并将PushKit完成传递给传入呼叫完成。