如何在ios日历的EKEvent中设置特定报警？

在EKEvent中，一旦我没有将任何警报设置为event，我就会在日历应用程序中进行检查，它会在5分钟前向我显示警报。为什么？我不明白

我的要求

• 我想在给定的特定时间之前设置两个警报，1警报打开 比如“5分钟，15分钟，30分钟，1小时”2第二次警报 希望设置活动时间

• 在搜索如何在事件中添加报警的基础上，我为添加事件做了一些事情，但它不起作用。很多尝试，但在日历中没有效果

• 请参阅下面的代码，我已经按照我的要求尝试了两种方法，我使用开关盒，甚至尝试添加单个警报。两者都不起作用

我该怎么办

提出任何建议、解决办法、想法

谢谢

       let event:EKEvent = EKEvent(eventStore: appleEventStore)

        event.title = tempDescription
        event.startDate = startDate as Date
        event.endDate = endDate as Date
        event.isAllDay = false
        event.notes = "This is a note"
        event.calendar = cal
        do {
            try appleEventStore.save(event, span: .thisEvent)
            print("events added with dates:")

            let alarm = EKAlarm(relativeOffset: 600)
            event.addAlarm(alarm)

            switch tempalertid {

            case "1":
                let aInterval: TimeInterval = -5 * 60
                let alaram = EKAlarm(relativeOffset: aInterval)
                event.addAlarm(alaram)
            case "2":
                let aInterval: TimeInterval = -15 * 60
                let alaram = EKAlarm(relativeOffset: aInterval)
                event.addAlarm(alaram)
            case "3":
                let aInterval: TimeInterval = -30 * 60
                let alaram = EKAlarm(relativeOffset: aInterval)
                event.addAlarm(alaram)
            case "4":
                let aInterval: TimeInterval = -1 * 60 * 60
                let alaram = EKAlarm(relativeOffset: aInterval)
                event.addAlarm(alaram)

            default:
                break
            }
            if event.hasAlarms {
                print("yes")

            }
            else {
                print("no")
            }

        } catch let e as NSError {
            print(e.description)
            return
        }
        print("Saved Event")

我有两个想法：

首先，在创建报警之前保存事件

其次，.alarm属性是一个报警数组，您试图单独保存每个报警

我有一个代码示例供您查看，不幸的是，它是用Objective-C编写的

EKEvent *event = [EKEvent eventWithEventStore:store];
EKAlarm *alarmForOneDayBeforeAppointment = [[EKAlarm alloc] init];
alarmForOneDayBeforeAppointment.absoluteDate = [self modifyDate:eventDate
                                                       withUnit:NSCalendarUnitDay
                                                                 andQuantity:-1];
event.alarms = @[alarmForOneDayBeforeAppointment];
[store saveEvent:event span:EKSpanThisEvent error:&err];

---

将event.alarm设置为数组后，请尝试保存事件。

您知道吗？帮助我添加事件的自定义频率，如我要添加每周频率，用户可以选择多天，如用户可以在每个星期一和星期五添加事件，也可以是全天或仅一天，如星期六。我拥有所选日期的数组。打开我的新问题链接：

    let event:EKEvent = EKEvent(eventStore: appleEventStore)
    event.title = tempDescription
    event.startDate = startDate as Date
    event.endDate = endDate as Date
    event.isAllDay = false
    event.notes = "This is a note"
    event.calendar = cal


    switch tempalertid {
        case "1":
            let aInterval: TimeInterval = -5 * 60
            let alaram = EKAlarm(relativeOffset: aInterval)
             event.alarms = [alaram]
        case "2":
            let aInterval: TimeInterval = -15 * 60
            let alaram = EKAlarm(relativeOffset: aInterval)
             event.alarms = [alaram]
        case "3":
            let aInterval: TimeInterval = -30 * 60
            let alaram = EKAlarm(relativeOffset: aInterval)
             event.alarms = [alaram]
        case "4":
            let aInterval: TimeInterval = -1 * 60 * 60
            let alaram = EKAlarm(relativeOffset: aInterval)
            event.alarms = [alaram]

        default:
            break
        }

    do {
        try appleEventStore.save(event, span: .thisEvent)
        print("events added with dates:")

    } catch let e as NSError {
        print(e.description)
        return
    }
    print("Saved Event")