iOS 13无法在后台获取VoIP推送通知

Question

我正在使用CallKit和PushKit在Swift中开发软电话。在iOS 13之前，VoIP通知运行良好。但是在iOS 13更新之后，我的应用程序在后台运行时没有收到VoIP推送通知。在前台didReceiveIncomingPushWith被调用，但在后台不被调用。

如何解决此问题？

代码

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    print("\(#function)")
    let voipPushResgistry = PKPushRegistry(queue: nil)
    voipPushResgistry.delegate = self
    voipPushResgistry.desiredPushTypes = [PKPushType.voIP]

    return true
}

func pushRegistry(_ registry: PKPushRegistry, didInvalidatePushTokenFor type: PKPushType) {
    print("\(#function) token invalidated")
}

func pushRegistry(_ registry: PKPushRegistry, didUpdate credentials: PKPushCredentials, for type: PKPushType) {
    let deviceToken = credentials.token.reduce("", {$0 + String(format: "%02X", $1) })
    print("\(#function) token is: \(deviceToken)")
}

func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType, completion: @escaping () -> Void) {
    print("\(#function)")
    print("It worked..")
    if type == .voIP {
        print("Uygulama aktif")
    }
}

感谢。

Answer 1

使用iOS 13 SDK]进行编译时，您将不再收到VoIP通知，也无法通过CallKit报告新的来话呼叫。

检查this other question，我已经解释了可用于不应该提醒新来电的通知的选项。

Answer 2

documentation说：

Answer 3

[如果您使用Xcode 11（和iOS 13 SDK）构建应用程序，则如果无法向CallKit报告，则PushKit将不再起作用。

Answer 4

Github上@mudassirzulfiqar的回答（谢谢他）。卸载并重新安装我的应用程序后，我收到了voip推送通知。现在，我将在reportNewIncomingCall中调用didReceiveIncomingPushWith。