Question

我将我的应用程序与CallKit集成在一起，以便使用VoIP接收来自另一个用户的来电。现在，我遇到了一些音频问题，接听电话后无法激活它。

我已经检查过本教程This，并比较了ProviderDelegate，这非常相似。

这就是我的ProviderDelegate类的样子

class ProviderDelegate: NSObject {
// 1.
fileprivate let callKitManager: CallKitCallInit
fileprivate let provider: CXProvider

init(callKitManager: CallKitCallInit) {
    self.callKitManager = callKitManager
    // 2.
    provider = CXProvider(configuration: type(of: self).providerConfiguration)

    super.init()
    // 3.
    provider.setDelegate(self, queue: nil)

}

// 4.
static var providerConfiguration: CXProviderConfiguration {
    let providerConfiguration = CXProviderConfiguration(localizedName: "vKclub dev2")

    providerConfiguration.supportsVideo = false
    providerConfiguration.maximumCallsPerCallGroup = 1
    providerConfiguration.supportedHandleTypes = [.phoneNumber]
    return providerConfiguration
}

func reportIncomingCall(uuid: UUID, handle: String, hasVideo: Bool = false, completion: ((NSError?) -> Void)?) {
    // 1.
    print("This is UUID === ", uuid)
    configureAudioSession()
    let update = CXCallUpdate()
    update.remoteHandle = CXHandle(type: .phoneNumber, value: handle)
    update.hasVideo = hasVideo


    provider.reportNewIncomingCall(with: uuid, update: update) { error in


        if error == nil {

            self.configureAudioSession()
            let call = CallKitCallInit(uuid: uuid, handle: handle)
            self.callKitManager.add(call: call)
            lastCallUUID = uuid
            print("UUID === ", uuid)
        } else {

        }


        completion?(error as NSError?)
    }


}

}

这就是我设置AVAudioSession

的方式

extension ProviderDelegate: CXProviderDelegate {

func providerDidReset(_ provider: CXProvider) {
    print("Stop Audio ==STOP-AUDIO==")

    for call in callKitManager.calls {
        call.end(uuid: UUID())
    }

    callKitManager.removeAllCalls()
}
func provider(_ provider: CXProvider, perform action: CXStartCallAction) {
    // 1.
    guard let call = callKitManager.callWithUUID(uuid: action.callUUID) else {
        action.fail()
        return
    }

    configureAudioSession()

}
func provider(_ provider: CXProvider, perform action: CXAnswerCallAction) {
    // 1.
    guard let call = callKitManager.callWithUUID(uuid: action.callUUID) else {
        action.fail()
        return
    }
    // 2.
    configureAudioSession()
    // 3.
    call.answer()
    // 4.
    if #available(iOS 11, *) {
        print ("vKclub")
    } else {

        action.fulfill()
    }

}

func provider(_ provider: CXProvider, perform action: CXEndCallAction) {
    // 1.
    guard let call = callKitManager.callWithUUID(uuid: action.callUUID) else {
        action.fail()       
        return
    }
    // 2.
    print("Stop audio ==STOP-AUDIO==")
    configureAudioSession()
    // 3.
    call.end(uuid: action.callUUID)
    // 4.
    if #available(iOS 11, *) {
        print("Our vKclube")
    } else {
        action.fulfill()
    }

    // 5.
    callKitManager.remove(call: call)
}

// 5.
func provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession) {
    print("Starting audio ==STARTING-AUDIO==")
}


func provider(_ provider: CXProvider, didDeactivate audioSession: AVAudioSession) {
    print("Received \(#function)")
}

func configureAudioSession() {
    let session = AVAudioSession.sharedInstance()

    do{
        try session.setCategory(AVAudioSessionCategoryPlayAndRecord,
                                 mode: AVAudioSessionModeVoiceChat,
                                 options: [])

    } catch {
        print("========== Error in setting category \(error.localizedDescription)")
    }

    do {
        try session.setPreferredSampleRate(44100.0)
    } catch {
        print("======== Error setting rate \(error.localizedDescription)")
    }
    do {
        try session.setPreferredIOBufferDuration(0.005)
    } catch {
        print("======== Error IOBufferDuration \(error.localizedDescription)")
    }
    do {
        try session.setActive(true)
    } catch {
        print("========== Error starting session \(error.localizedDescription)")
    }
}

}

我已经面对这个问题好几天了，但仍然无法解决。我正在使用XCode 10.1。

Answer 1

我发现错误与您的代码action.fulfill()从未被调用有关。

基于Apple的文档：

调用此方法会将isComplete属性值设置为true。多次调用此方法或在调用fail（）方法之后调用它均无效。您只应从CXProviderDelegate方法的实现中调用此方法。

我希望您应该在CXProviderDelegate内部调用此方法。我见过您实现了它，但可悲的是从未调用过该方法。我确定这是您的音频未激活的原因。

接听来电时，音频似乎无法与CallKit配合使用

1 个答案: