Swift 如何使用事件打开日历-NSURL calshow：

我想知道是否有人知道如何从应用程序启动带有特定事件的日历

我做了一些研究，提出了两种使用NSURL从应用程序内部打开本机日历的方法

“calshow://”

在当前日期打开日历

“calshow:\（someNSDate.timeIntervalSinceReferenceDate）”

打开日期为

someNSDate的日历

我还发现将

calshow:x？eventid=id

列为url，但我不确定这是否有效（列为非公开），我自己也无法让它工作，尝试使用：

event.calendarItemExternalIdentifier
event.eventIdentifier
event.calendarItemIdentifier

目前，我正在使用此代码在最后一个日历日期（活动日期）打开日历应用程序

        if let day = hackathon?.start {

            let today = NSDate()
            let timeSince = NSDate.timeIntervalSinceReferenceDate() // this plus
            let todayToFutureDate = day.timeIntervalSinceDate(today)
            let finalInterval = todayToFutureDate + timeSince

            UIApplication.sharedApplication().openURL(NSURL(string: "calshow:\(finalInterval)")!)
        }

我想做的是打开日历，用事件id或类似的东西来显示事件

        if let day = hackathon?.start {

            let today = NSDate()
            let timeSince = NSDate.timeIntervalSinceReferenceDate() // this plus
            let todayToFutureDate = day.timeIntervalSinceDate(today)
            let finalInterval = todayToFutureDate + timeSince

            UIApplication.sharedApplication().openURL(NSURL(string: "calshow:\(finalInterval)")!)
        }

---

如果您有任何关于更多信息的问题，请提问，我将在附近

尝试使用此功能，创建此功能

func gotoAppleCalendar(date: NSDate) {
  let interval = date.timeIntervalSinceReferenceDate
  let url = NSURL(string: "calshow:\(interval)")!
  UIApplication.sharedApplication().openURL(url)
}

使用事件开始日期作为参数调用函数

 gotoAppleCalendar(event.startDate)

---

这将打开显示添加事件的apple日历

确定这就是我想要澄清的。。。你说过你会看到一个“附加事件”。。。好像您用编写的代码添加了事件，但您没有这样做

---

当你在谷歌上搜索如何添加日历事件时，你得到的答案是“添加事件”

Swift 4 variant+

func gotoAppleCalendar(date: Date) {
     let interval = date.timeIntervalSinceReferenceDate
     let url = URL(string: "calshow:\(interval)")!
     UIApplication.shared.openURL(url)
 }

---

Swift 4日历服务，可创建活动并打开日历

import Foundation
import EventKit
import UIKit

final class CalendarService {

  class func openCalendar(with date: Date) {
    guard let url = URL(string: "calshow:\(date.timeIntervalSinceReferenceDate)") else {
      return
    }
    UIApplication.shared.open(url, options: [:], completionHandler: nil)
  }

  class func addEventToCalendar(title: String,
                                description: String?,
                                startDate: Date,
                                endDate: Date,
                                completion: ((_ success: Bool, _ error: NSError?) -> Void)? = nil) {
    DispatchQueue.global(qos: .background).async { () -> Void in
      let eventStore = EKEventStore()

      eventStore.requestAccess(to: .event, completion: { (granted, error) in
        if (granted) && (error == nil) {
          let event = EKEvent(eventStore: eventStore)
          event.title = title
          event.startDate = startDate
          event.endDate = endDate
          event.notes = description
          event.calendar = eventStore.defaultCalendarForNewEvents
          do {
            try eventStore.save(event, span: .thisEvent)
          } catch let e as NSError {
            DispatchQueue.main.async {
              completion?(false, e)
            }
            return
          }
          DispatchQueue.main.async {
            completion?(true, nil)
          }
        } else {
          DispatchQueue.main.async {
            completion?(false, error as NSError?)
          }
        }
      })
    }
  }
}

使用

CalendarService.addEventToCalendar(title: "TITLE",
                                               description: "DESCRIPTION",
                                               startDate: startDate,
                                               endDate: endDate,
                                               completion: { (success, error) in
                                                if success {
                                                    CalendarService.openCalendar(with: startDate)
                                                } else if let error = error {
                                                    print(error)
                                                }
    })

---

@duhseekoh此函数不用于将事件添加到日历，而是用于打开和先前添加的事件