Swift 日历添加事件 删除事件

import EventKit
/**
 Privacy - Calendars Usage Description 添加日历权限 info.list 配置权限
 */
/// 日历添加事件
class KKAddEventClasse: NSObject {
    /// 添加成功回调
    typealias SuccessAddEvent = ((_ identifier: String) -> Void)
    /// 添加失败回调
    typealias ErrorAddEvent = ((_ error: String) -> Void)
    
    
    // 提前一个小时开始
    var eventStartDate:Double = 3600
    // 提前一分钟结束开始
    var eventEndDate:Double = 60
    
    /// 是否添加闹钟 默认添加
    var isAddAlarm:Bool = true
    /// 添加闹钟（开始前多少秒）若为正则是开始后多少秒。
    var addAlarmDate:Double = 60
    
    /// 事件商店
    private  var eventStore = EKEventStore()
   
    
    /// 添加事件
    /// - Parameter time: "yyyy-MM-dd HH:mm:ss"
    open func addEventByTime(time:String,successAddEvent:SuccessAddEvent? = nil,errorAddEvent:ErrorAddEvent? = nil) {
        if time.count != "yyyy-MM-dd HH:mm:ss".count {
            return
        }
        eventStore.requestAccess(to: EKEntityType.event, completion: { [weak self](isAllow, error) in
            if error != nil {
                errorAddEvent?("添加异常")
                return
            }
            if isAllow == true {
                self?.addEvent(time:time,successAddEvent:successAddEvent,errorAddEvent:errorAddEvent)
                print("允许添加")
            } else {
                errorAddEvent?("未允许添加")
            }
            
        })
        
    }
    /// 移除事件 通过事件id
    /// - Parameter eventIdentifier: 事件唯一标识
    open func removeEnvent(_ eventIdentifier:String){
        let event =  eventStore.event(withIdentifier: eventIdentifier)
        guard event != nil else {
              return
        }
        /// 事件存在
        do {
            let _ = try eventStore.remove(event!, span: .thisEvent)
            
            } catch {
            print(error)
        }
    }
    
    private func addEvent(time:String,successAddEvent:SuccessAddEvent? = nil,errorAddEvent:ErrorAddEvent? = nil) {
        let event = EKEvent.init(eventStore: eventStore)
        /// 事件标题
        event.title = "事件标题"
        event.calendar = eventStore.defaultCalendarForNewEvents
        /// 日历显示标题
        event.calendar.title = "日历显示标题"
        
        let formatter = DateFormatter()
        formatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
        let date:Date = formatter.date(from: time) ?? Date()
                       
        // 提前一个小时开始
        event.startDate = date - eventStartDate
        /// 提前一分钟结束
        event.endDate = date - eventEndDate
        if isAddAlarm {
            /// 添加闹钟结合（开始前多少秒）若为正则是开始后多少秒。
            event.addAlarm(EKAlarm(relativeOffset: -60))
        }
        do {

            try eventStore.save(event, span: .thisEvent, commit: true)
            DispatchQueue.main.async {
                successAddEvent?(event.eventIdentifier)
            }

        } catch  {
            errorAddEvent?("添加异常")
        }
    }
   
}

 let event = KKAddEventClasse()
/// 添加
 event.addEventByTime(time: "2021-03-01 16:00:00",successAddEvent: { [weak self](eventIdentifier) in
            self?.eventIdentifier = eventIdentifier
        }, errorAddEvent:  {(error) in
            print(error)
        })
/// 删除
event.removeEnvent(eventIdentifier)