如何提取iOS日历中的假期？

Question

如何从iOS日历中提取假期？

我希望能够从日历中读取事件，并在我自己的日历程序中使用它们。

Answer 1

尝尝这个

// Get the appropriate calendar
NSCalendar *calendar = [NSCalendar currentCalendar];

// Create the start date components
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1;
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
                                              toDate:[NSDate date]
                                             options:0];

// Create the end date components
NSDateComponents *oneYearFromNowComponents = [[NSDateComponents alloc] init];
oneYearFromNowComponents.year = 1;
NSDate *oneYearFromNow = [calendar dateByAddingComponents:oneYearFromNowComponents
                                                   toDate:[NSDate date]
                                                  options:0];

// Create the predicate from the event store's instance method
NSPredicate *predicate = [store predicateForEventsWithStartDate:oneDayAgo
                                                        endDate:oneYearFromNow
                                                      calendars:nil];

// Fetch all events that match the predicate
NSArray *events = [store eventsMatchingPredicate:predicate];

Answer 2

Swift 3.0版

获取用户权限

func requestAccessToCalendar() {
    eventStore.requestAccess(to: EKEntityType.event, completion: {
        (accessGranted: Bool, error: Error?) in

        if accessGranted == true {
            DispatchQueue.main.async(execute: {
                getALLEvents
            })
        } else {

        }
    })
}

func getALLEvents(){
    let caledar = NSCalendar.current
    let oneDayAgoComponents = NSDateComponents.init()
    oneDayAgoComponents.day = -1
    let oneDayAgo = caledar.date(byAdding: oneDayAgoComponents as DateComponents, to: Date(), wrappingComponents: true)


    let oneYearFromNowComponents = NSDateComponents.init()
    oneYearFromNowComponents.year = 1
    let oneYearFromNow = caledar.date(byAdding: oneYearFromNowComponents as DateComponents, to: Date(), wrappingComponents: true)

    let store = EKEventStore.init()

    let predicate = store.predicateForEvents(withStart: oneDayAgo!, end: oneYearFromNow!, calendars: nil)

    let event = store.events(matching: predicate)
}