CallKit WebRTC:在iOS中按下锁定/电源按钮时，CallKit呼叫断开

Question

这是一个会议应用程序，我正在启动传出呼叫，以使我的VoIP呼叫具有高优先级，并且在我进行VoIP呼叫时不会中断传入呼叫。

我在我的应用程序中使用WebRTC CallKit。我开始了一个呼叫，当我按下锁定/电源按钮，然后CallKit呼叫断开，我的Voip呼叫音频路由更改为接收器并保持不变。

为什么要锁定iPhone以终止通话。

这是我的代码。

 var callUUID: UUID?

extension AppDelegate {
    func initiateCallKitCall() {
        let config = CXProviderConfiguration(localizedName: "AppName")
        config.includesCallsInRecents = false;
        config.supportsVideo = true;
        config.maximumCallsPerCallGroup = 1
        provider = CXProvider(configuration: config)
        guard let provider = provider else { return }
        provider.setDelegate(self, queue: nil)
        callController = CXCallController()
        guard let callController = callController else { return }
        callUUID = UUID()
        let transaction = CXTransaction(action: CXStartCallAction(call: callUUID!, handle: CXHandle(type: .generic, value: "AppName")))
        callController.request(transaction, completion: { error in
            print("Error is : \(String(describing: error))")
        })

    }

    func endCallKitCall(userEnded: Bool) {
        self.userEnded = userEnded
        guard provider != nil else { return }
        guard let callController = callController else { return }
        if let uuid = callUUID {
            let endCallAction = CXEndCallAction(call: uuid)
            callController.request(
                CXTransaction(action: endCallAction),
                completion: { error in
                    if let error = error {
                        print("Error: \(error)")
                    } else {
                        print("Success")
                    }
                })
        }
    }

    func isCallGoing() -> Bool {
        let callController = CXCallController()
        if callController.callObserver.calls.count != 0 {
            return true
        }
        return false
    }
}

extension AppDelegate: CXProviderDelegate {

    func providerDidReset(_ provider: CXProvider) {
        print("-Provider-providerDidReset")
    }

    func provider(_ provider: CXProvider, perform action: CXAnswerCallAction) {
        print("-Provider-perform action: CXAnswerCallAction")
        action.fulfill()
    }

    func provider(_ provider: CXProvider, perform action: CXEndCallAction) {
        action.fulfill()
        print("-Provider: End Call")
    }

    func provider(_ provider: CXProvider, perform action: CXStartCallAction) {
        action.fulfill()

        DispatchQueue.main.asyncAfter(wallDeadline: DispatchWallTime.now() + 3) {
            provider.reportOutgoingCall(with: action.callUUID, startedConnectingAt: Date())
            DispatchQueue.main.asyncAfter(wallDeadline: DispatchWallTime.now() + 1.5) {
                provider.reportOutgoingCall(with: action.callUUID, connectedAt: Date())
            }
        }
    }

    func provider(_ provider: CXProvider, perform action: CXSetHeldCallAction) {
        action.fulfill()
    }

    func provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession) {
        RTCAudioSession.sharedInstance().audioSessionDidActivate(audioSession)
        RTCAudioSession.sharedInstance().isAudioEnabled = true
    }

    func provider(_ provider: CXProvider, didDeactivate audioSession: AVAudioSession) {
        RTCAudioSession.sharedInstance().audioSessionDidDeactivate(audioSession)
        RTCAudioSession.sharedInstance().isAudioEnabled = false
    }
}

Answer 1

我想在这里回答所有与CallKit相关的问题。我的问题的答案是：

您需要设置音频会话模式。默认后，您的voip呼叫建立成功。

try AVAudioSession.sharedInstance().setMode(.default)
AudioRouteManager.shared.fourceRouteAudioToSpeakers()

Answer 2

当且仅当通话通过屏幕顶部的内置扬声器（接收器）进行时，电源按钮才会结束通话。在任何其他情况下（即通过耳机、蓝牙或内置扬声器播放音频），电源按钮不会结束通话。

本地电话也是如此。