Question

我尝试使用Eventkit访问Mac日历。虽然我在应用程序中有本地日历，iCloud日历和Google日历中的多个日历和许多事件，但我已成功请求访问，但我一直收到零或一系列日历或事件。我从以下代码得到的输出是：在我的Mac上 [] []

    let sources = eventStore.sources
    for source in sources{
        print(source.title)
        for calendar in source.calendars(for: .event){
            print(calendar.title)
        }
    }

    let calendars = eventStore.calendars(for: .event)
    let predicate = self.eventStore.predicateForEvents(withStart: startDate, end: endDate, calendars: nil)
    let events = self.eventStore.events(matching: predicate)
    print(calendars)
    print(events)

如果我尝试从代码创建并保存日历，那么我会收到错误：错误域= EKErrorDomain代码= 5＆＃34;在持久性不可用时尝试保存＆＃34; UserInfo = {NSLocalizedDescription =在持久性不可用时尝试保存}

Answer 1

经过反复试验，我找到了答案。

您需要在权利文件中将com.apple.security.personal-information.calendars键设置为YES，即使您的应用未进行沙箱测试也是如此。 Apple的EventKit实现中存在一个错误，该错误会阻止您的应用获取即使未禁用沙箱，也可以访问日历（如果未设置此键）。

Answer 2

我可能是错的，但是您在谓词中缺少一个参数，因此您传入nil，因此基本上没有任何排序的输出。尝试将代码更改为：

 let sources = eventStore.sources
    for source in sources{
        print(source.title)
        for calendar in source.calendars(for: .event){
            print(calendar.title)
        }
    }

    let calendars = eventStore.calendars(for: .event)
    let predicate = self.eventStore.predicateForEvents(withStart: startDate, end: endDate, calendars: calendars)  //change here
    let events = self.eventStore.events(matching: predicate)
    print(calendars)
    print(events)

Answer 3

尝试此方法

创建并获取日历

func getCalendar() -> EKCalendar? {
        let defaults = UserDefaults.standard
    
        if let id = defaults.string(forKey:"calendarID") {
            return eventStore.calendar(withIdentifier: id)
          } else {
            let calendar = EKCalendar(for: .event, eventStore: eventStore)
    
               calendar.title = "Calendar Title"
               calendar.cgColor = UIColor.blue
               calendar.source = self.eventStore.defaultCalendarForNewEvents!.source
    
             do {
                 try eventStore.saveCalendar(calendar, commit: true)
                 defaults.set(calendar.calendarIdentifier, forKey: "calendarID")
    
                 print("Created calander")
               } catch let error as NSError {
               print("failed to Create calendar with error : \(error)")
               }
            
    
              return calendar
          }
      }

Swift 4.0 Eventkit无法正确获取日历和事件

3 个答案: