[英]how to remove certain / Specific event using EventKit
I need to remove an event with certain/specific title, I hope that I can delete/remove the event based on the eventID/Identifier. 我需要删除具有特定标题的事件,希望我可以基于eventID / Identifier删除/删除该事件。 but I don't know how to do that in code. 但是我不知道如何在代码中做到这一点。 I don't know how to give identifier to the event and remove it based on their identifier/title. 我不知道如何为事件提供标识符并根据其标识符/标题将其删除。
here is the code I use to save the event: 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)
}
I know that I can use evenStore.remove()
, but that method needs EKEvent
instance. 我知道我可以使用evenStore.remove()
,但是该方法需要EKEvent
实例。 I don't understand how to remove a specific event if using that method, it will be easier if I can remove the event based on their identifier 我不了解如何使用该方法删除特定事件,如果我可以根据事件的标识符删除事件,会更容易
Actually an EKEvent
instance has a get-only attribute called eventIdentifier
. 实际上, EKEvent
实例具有一个名为eventIdentifier
的仅获取属性。 You can't modify this identifier, but you can get it after you save the event . 您无法修改此标识符,但是可以在保存事件之后获取它。 So: 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)
}
Then you can get the event using its identifier 然后,您可以使用其标识符获取事件
let event = eventStore.event(withIdentifier: id)
and then pass this EKEvent
to eventStore.remove()
然后将此EKEvent
传递给eventStore.remove()
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