Voip来电不'；当应用程序在iOS中终止时无法工作

说明

pushkit代理中的Voip呼叫DidReceiveInMingPushWithPayload在后台状态下工作正常。但在死机状态下，它不工作，应用程序在main.m中崩溃。即使在终止状态下也不会调用方法DidReceiveInMingPushWithPayload

- (void)pushRegistry:(PKPushRegistry *)registry didReceiveIncomingPushWithPayload:(PKPushPayload *)payload forType:(PKPushType)type withCompletionHandler:(void (^)(void))completion
{
    NSLog(@"<<<<<<<<<<<<<<************* %s",__PRETTY_FUNCTION__);
    NSLog(@"payload.dictionaryPayload = %@",payload.dictionaryPayload);
    NSLog(@"UTC payload.dictionaryPayload = %f",[[NSDate date] timeIntervalSince1970]);

    if (type == PKPushTypeVoIP) {

        //Call kit configration
        CXProviderConfiguration *providerConfig = [[CXProviderConfiguration alloc] initWithLocalizedName:@"Push Voip Call"];
        providerConfig.supportsVideo = NO;
        providerConfig.supportedHandleTypes = [[NSSet alloc] initWithObjects:[NSNumber numberWithInteger:CXHandleTypeEmailAddress], nil];

        CXCallUpdate *callUpdate = [CXCallUpdate new];

        NSString *uniqueIdentifier = @"Demo call";
        CXCallUpdate *update = [[CXCallUpdate alloc] init];
        update.remoteHandle = [[CXHandle alloc] initWithType:CXHandleTypeEmailAddress value:uniqueIdentifier];
        update.localizedCallerName = uniqueIdentifier;
        update.hasVideo = NO;

        NSUUID *callId = [NSUUID UUID];

        CXProvider *provider = [[CXProvider alloc]initWithConfiguration:providerConfig];
        [provider setDelegate:self queue:nil];

        [provider reportNewIncomingCallWithUUID:callId update:callUpdate completion:^(NSError * _Nullable error) {
            NSLog(@"reportNewIncomingCallWithUUID error: %@",error);

            //completion();

        }];

        completion();
    }
}

-（void）pushRegistry:（PKPushRegistry*）注册表didReceiveIncomingPushWithPayload:（PKPushPayload*）有效负载类型：（PKPushType）类型withCompletionHandler:（void（^）（void））完成
{
NSLog（@）