Question

我想获取日历活动的与会者列表，我不知道如何在Swift 3中执行此操作。我还希望获得任何活动参与者的电子邮件地址，以通过我的应用与他们联系。有没有人可以帮助我？感谢。

我用这个功能检索事件：

func loadEvents() {

    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd-MM-yyyy"

    let date = Date()
    let calendar2 = Calendar.current
    let components = calendar2.dateComponents([.year, .month, .day], from: date)

    let year =  components.year
    let month = components.month
    let day = components.day

    let startDate = dateFormatter.date(from: "\(day ?? 01)" + "-" + "\(month ?? 01)" + "-" + "\(year ?? 2017)")
    let endDate = dateFormatter.date(from: "31-12-" + "\(year ?? 2099)")

    if let startDate = startDate, let endDate = endDate {
        let eventStore = EKEventStore()

        let eventsPredicate = eventStore.predicateForEvents(withStart: startDate, end: endDate, calendars: [calendar])

        self.events = eventStore.events(matching: eventsPredicate).sorted() {
            (e1: EKEvent, e2: EKEvent) -> Bool in

            return e1.startDate.compare(e2.startDate) == ComparisonResult.orderedAscending
        }


    }
}

我将它们列在UITableView中，如下所示：

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "basicCell")!
        cell.textLabel?.text = events?[(indexPath as NSIndexPath).row].title
        cell.detailTextLabel?.text = formatDate(events?[(indexPath as NSIndexPath).row].startDate)
        return cell
}

但是，当我试图让与会者参加这样的活动时：

if (events?[(indexPath as IndexPath).row].hasAttendees)! {
      let eventsAttendees: [EKParticipant]! = events?[(indexPath as IndexPath).row].attendees
}

我总是eventsAttendees = nil

我不明白。

Answer 1

我得到了这样的活动与会者的姓名和电子邮件：

for attendee in event.attendees {
    let email = (attendee.url.absoluteString).replacingOccurrences(of: "mailto:", with: "")
    let name = attendee.name ?? ""
}

如何从Swift中的日历活动中获取与会者列表及其电子邮件地址？

1 个答案: