ios - 如何使用 EventKit 删除某些/特定事件

Question

我需要删除某个/特定标题的事件，我希望我可以根据事件ID/标识符删除/删除事件。但我不知道如何在代码中做到这一点。我不知道如何为事件提供标识符并根据标识符/标题将其删除。

这是我用来保存事件的代码:

let eventStore = EKEventStore()
        let newEvent = EKEvent(eventStore: eventStore)

        newEvent.calendar = eventStore.defaultCalendarForNewEvents
        newEvent.title = self.eventNameTextField.text ?? "Some Event Name"
        newEvent.startDate = timeDatePicker.date
        newEvent.endDate = endTimeDatePicker.date
        newEvent.notes = "Ini adalah catatan"
        newEvent.location = "Jalan Sunda kelapa no.60"

        let eventAlarm = EKAlarm(relativeOffset: -60 * 10) // 10 minutes before the start date
        newEvent.alarms = [eventAlarm]


        do {
            try eventStore.save(newEvent, span: .thisEvent)
            print("Event has been saved")
        } catch {
            let alert = UIAlertController(title: "Event could not be saved", message: (error as NSError).localizedDescription, preferredStyle: .alert)
            let OKAction = UIAlertAction(title: "OK", style: .default, handler: nil)
            alert.addAction(OKAction)

            self.present(alert, animated: true, completion: nil)
        }

我知道我可以使用 evenStore.remove() ，但该方法需要 EKEvent 实例。我不明白如果使用该方法如何删除特定事件，如果我可以根据标识符删除事件会更容易

Answer 1

实际上，EKEvent 实例有一个名为 eventIdentifier 的只读属性。您无法修改此标识符，但您可以在保存事件后获取它。所以:

    do {
        try eventStore.save(newEvent, span: .thisEvent)
        let id = newEvent.eventIdentifier ?? "NO ID"
        //Save your ID in your database or anywhere else so you can retrieve the event later
        print("Event has been saved with id \(id)")
    } catch {
        let alert = UIAlertController(title: "Event could not be saved", message: (error as NSError).localizedDescription, preferredStyle: .alert)
        let OKAction = UIAlertAction(title: "OK", style: .default, handler: nil)
        alert.addAction(OKAction)

        self.present(alert, animated: true, completion: nil)
    }

然后你可以使用它的标识符获取事件

let event = eventStore.event(withIdentifier: id)

然后将此 EKEvent 传递给 eventStore.remove()