接收UILocalnotification时无振动

Question

我不明白。这是我配置我的LocalNotification并解雇它的代码。它工作正常，但没有振动。我认为收到通知时应该有振动吗？

我试过AudioServicesPlayAlertSound（kSystemSoundID_Vibrate）/ AudioServicesPlaySystemSound（kSystemSoundID_Vibrate），但没有运气。

- (void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region
{

UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.soundName = UILocalNotificationDefaultSoundName;
if(state == CLRegionStateInside)
{
    notification.alertBody = @"Bla Bla";
    wasWelcomeBefore = TRUE;
}
else if(state == CLRegionStateOutside)
{
    notification.alertBody = @"Bla";
}
else
{
    NSLog(@"locationManager didDetermineState OTHER for %@", region.identifier);
    return;
}

if ([[UIApplication sharedApplication] applicationState] != UIApplicationStateActive){
    if (!isNotifiForFirstBeacon && wasWelcomeBefore) {
        AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);
        NSDictionary *dataDict = [NSDictionary dictionaryWithObject:[NSNumber     numberWithBool:isNotifiForFirstBeacon]                                                                    forKey:@"isFirstBeacon"];
        isNotifiForFirstBeacon = TRUE;
        notification.userInfo = dataDict;
        [[UIApplication sharedApplication] presentLocalNotificationNow:notification];
    }
}