如何从日历中获取所有事件(Swift)

Question

我对Swift有点新意,但真的很感兴趣.我希望将我存储在名为"Work"的日历中的所有事件都显示在tableView中.我一直在寻找这样的问题,但那里显示的代码似乎有些陈旧,并没有真正起作用.我怎么做？tableView应该能够显示标题,开始和结束日期.是否有可能像一串字符串中的所有标题一样.与开始和结束相同？得到一些提示真棒!

更新:我在类外声明了变量.现在我尝试了一个看起来像这样的代码,这要归功于我在这里得到的答案,但是我没有让单元格显示任何东西？!是的我已经在模拟器上的工作日历中创建了一个testEvent.

    override func viewDidAppear(animated: Bool) {

    let eventStore = EKEventStore()

    switch EKEventStore.authorizationStatusForEntityType(.Event) {
    case .Authorized:
        readEvents()
    case .Denied:
        print("Access denied")
    case .NotDetermined:

        eventStore.requestAccessToEntityType(.Event, completion: { (granted: Bool, NSError) -> Void in
            if granted {
                self.readEvents()

            }else{
                print("Access denied")
            }



        })
    default:
        print("Case Default")
    }
    self.tableView.reloadData()
}



func readEvents() {



    let eventStore = EKEventStore()
    let calendars = eventStore.calendarsForEntityType(.Event)

    for calendar in calendars {
        if calendar.source.title == "Work" {
            let oneMonthAgo = NSDate(timeIntervalSinceNow: -30*24*3600)
            let oneMonthAfter = NSDate(timeIntervalSinceNow: +30*24*3600)


            let predicate = eventStore.predicateForEventsWithStartDate(oneMonthAgo, endDate: oneMonthAfter, calendars: [calendar])

            var events = eventStore.eventsMatchingPredicate(predicate)

            for event in events {

                titles.append(event.title)
                startDates.append(event.startDate)
                endDates.append(event.endDate)


            }

        }
    }


}

// MARK: - Table view data source



override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return titles.count
}


override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath)


    cell.textLabel!.text = titles[indexPath.row]
    cell.detailTextLabel!.text = "From: \(startDates[indexPath.row]) Until: \(endDates[indexPath.row])"
    // Configure the cell...

    return cell
}

Answer 1

你可以尝试这样的事情

    import EventKit

    var titles : [String] = []
    var startDates : [NSDate] = []
    var endDates : [NSDate] = []

    let eventStore = EKEventStore()
    let calendars = eventStore.calendarsForEntityType(.Event)

    for calendar in calendars {
        if calendar.title == "Work" {

            let oneMonthAgo = NSDate(timeIntervalSinceNow: -30*24*3600)
            let oneMonthAfter = NSDate(timeIntervalSinceNow: +30*24*3600)

            let predicate = eventStore.predicateForEventsWithStartDate(oneMonthAgo, endDate: oneMonthAfter, calendars: [calendar])

            var events = eventStore.eventsMatchingPredicate(predicate)

            for event in events {
                titles.append(event.title)
                startDates.append(event.startDate)
                endDates.append(event.endDate)
            }
        }
    }