多次安排相同的本地通知是否安全？

Question

我有这个帮助方法来创建一个本地通知，该通知每天都会在特定的时间调用：

func create(_ type: NotificationType, time: Date, title: String, body: String, repeated: Bool = false) {
    let content = UNMutableNotificationContent()
    content.title = title
    content.body = body
    content.sound = UNNotificationSound.default()

    let triggerDate = Calendar.current.dateComponents([.hour, .minute], from: time)
    let trigger = UNCalendarNotificationTrigger(dateMatching: triggerDate, repeats: false)
    let identifier = type.rawValue
    let request = UNNotificationRequest(identifier: identifier, content: content, trigger: trigger)

    center.add(request) { error in
        if let error = error {
            fatalError("Unable to add request to Notification Center - \(error)")
        }
    }
}

然后我每次启动应用程序时都会调用它：

notifications.create(.tomorrow, time: Date.tomorrowsTime,
                         title: "" ,
                         body: "",
                         repeated: true)

如果我每次启动应用程序时安排它，是否安全？或者我应该确保只在应用程序第一次运行时调用一次？