iOS9中的UILocalNotification和iOS10中的UNMutableNotificationContent？

我需要向项目提供向后兼容性(iOS 9).我想出了这个:

if #available(iOS 10.0, *) {
        let cOntent= UNMutableNotificationContent()
    } else {
        // Fallback on earlier versions
    }

我应该在Fallback中写些什么？我是否需要创建本地通知实例？

以下是支持这两个版本的小例子:

Objective-c版本:

if #available(iOS 10.0, *) {
    UNMutableNotificationContent *objNotificatiOnContent= [[UNMutableNotificationContent alloc] init];
    objNotificationContent.body = @"Notifications";
    objNotificationContent.badge = @([[UIApplication sharedApplication] applicationIconBadgeNumber] + 1);
    UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:60 repeats:NO];
    UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"identifier" content:objNotificationContent trigger:trigger];
    UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
    [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
        if (!error) {
        }
        else {
        }
    }];
}
else
{
    UILocalNotification *localNotif = [[UILocalNotification alloc] init];
    localNotif.fireDate = [[NSDate date] dateByAddingTimeIntervalInterval:60];
    localNotif.alertBody = @"Notifications";
    localNotif.repeatInterval = NSCalendarUnitMinute;
    localNotif.applicatiOnIconBadgeNumber= 0;
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
}

Swift版本:

if #available(iOS 10.0, *) {
    let cOntent= UNMutableNotificationContent()
    content.categoryIdentifier = "awesomeNotification"
    content.title = "Notification"
    content.body = "Body"
    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 60, repeats: false)
    let request = UNNotificationRequest(identifier: "FiveSecond", content: content, trigger: trigger)
    let center = UNUserNotificationCenter.current()
    center.add(request) { (error) in
    }
}
else
{
    let notification = UILocalNotification()
    notification.alertBody = "Notification"
    notification.fireDate = NSDate(timeIntervalSinceNow:60)
    notification.repeatInterval = NSCalendarUnit.Minute
    UIApplication.sharedApplication().cancelAllLocalNotifications()
    UIApplication.sharedApplication().scheduledLocalNotificatiOns= [notification]
}