Swift 3：EKEventStore不會使用RecurrenceRule刪除單個事件

Question

這是我簡化的事件刪除功能，它不適用於recurrenceRule。 EventStore在應用程序加載時創建一次。 使用recurrenceRule編輯和保存單個事件可以正常工作，但使用recurrenceRule刪除事件將刪除所有事件而不是一個事件，無論我通過了哪個EKSpan。同樣刪除未來事件（EKSpan.futureEvents），也會從同一個recurrenceRule中刪除以前的事件。其他一切看起來都很好。

我錯過了什麼？感謝您的時間。

let eventStore = EKEventStore() 


func deleteEvent(_ storedEventID: String) 
{ 
    eventStore.requestAccess(to: .event, completion: { (granted, error) in 
     if (granted) && (error == nil) 
     { 

      if let calendarEvent_toDelete = self.eventStore.event(withIdentifier: storedEventID){ 

       //recurring event 
       if calendarEvent_toDelete.recurrenceRules?.isEmpty == false 
       { 
        let alert = UIAlertController(title: "Repeating Event", message: 
         "This is a repeating event.", preferredStyle: UIAlertControllerStyle.alert) 

        //delete this event only 
        let thisEvent_Action = UIAlertAction(title: "Delete this event", style: UIAlertActionStyle.default) 
        { 
         (result : UIAlertAction) -> Void in 

         //sometimes doesn't delete anything, sometimes deletes all reccurent events, not just current!!! 
         do{ 
          try self.eventStore.remove(calendarEvent_toDelete, span: .thisEvent) 
         } catch let e as NSError{return} 

        } 


        alert.addAction(thisEvent_Action) 

        if let topViewController = UIApplication.topViewController(){ 
         topViewController.modalPresentationStyle = UIModalPresentationStyle.overFullScreen 
         topViewController.present(alert, animated: true) 
        } 
       } 
       //not recurring event 
       else{ 
        //works fine 
        do{ 
         try self.eventStore.remove(calendarEvent_toDelete, span: EKSpan.thisEvent) 
        } catch let e as NSError{ 
         return 
        } 
       } 
      } 

    } 
    }) 
} 

Answer 1

這有助於

func deleteEvent(calendarEvent_toDelete: EKEvent){ 
    ... 
    calendarEvent_toDelete.recurrenceRules?.removeAll() 
    try self.store.save(calendarEvent_toDelete, span: .thisEvent) 

    try self.store.remove(calendarEvent_toDelete, span: .thisEvent, commit: true) 
    ... 
}