How to fetch the events from local calendar in iOS swift

Question

func fetchEvent()
    {
    
        var store = EKEventStore()

        let calendars = store.calendars(for: .event)

        for calendar in calendars {

                let oneMonthAgo =  Date()
                let oneMonthAfter = Date(timeIntervalSinceNow: 30*24*3600)
                let predicate =  store.predicateForEvents(withStart: oneMonthAgo, end: oneMonthAfter, calendars: [calendar])
                
                let events = store.events(matching: predicate)
                
                for event in events {
                    titles.append(event.title)
                    startDates.append(event.startDate)
                    endDates.append(event.endDate)
             }
    }

[I] use this code to fetch the stored events from the my local calendar. I stored many events in my local calendar but in events always it 0 element. So anyone please help me.

1) Are you authorized to access the calendar? 2) The outer for loop is not necessary, the predicate takes an array of calendars 3) Never do `86400` date math, use the `Calendar` API — vadian, Aug 11 '22 at 08:45

Viktor G · Accepted Answer · 2022-08-11T11:09:36.757

First of all, don't forget to update your Info.plist with a NSCalendarsUsageDescription by adding a new row:

Key: "Privacy - Calendars Usage Description"
Value: "Please give access" - this is up to you

Your ViewController should look similar to this:

import UIKit
import EventKit

final class ViewController: UIViewController {
    let eventStore = EKEventStore()
    var titles: [String] = []
    var startDates: [Date] = []
    var endDates: [Date] = []

    override func viewDidLoad() {
        super.viewDidLoad()

        fetchEventsFromCalendar()
    }

    func fetchEventsFromCalendar() -> Void {
        let status = EKEventStore.authorizationStatus(for: EKEntityType.event)
        switch status {
        case .notDetermined: requestAccessToCalendar("Calendar")
        case .authorized: fetchEventsFromCalendar("Calendar")
        case .denied: print("Access denied")
        default: break
        }
    }

    func requestAccessToCalendar(_ calendarTitle: String) {
        eventStore.requestAccess(to: EKEntityType.event) { (_, _) in
            self.fetchEventsFromCalendar(calendarTitle)
        }
    }

    func fetchEventsFromCalendar(_ calendarTitle: String) -> Void {
        for calendar in eventStore.calendars(for: .event) {
            if calendar.title == calendarTitle {
                let oneMonthAgo = Calendar.current.date(byAdding: .month, value: -1, to: Date()) ?? Date()
                let oneMonthAfter = Calendar.current.date(byAdding: .month, value: 1, to: Date()) ?? Date()
                let predicate = eventStore.predicateForEvents(
                    withStart: oneMonthAgo,
                    end: oneMonthAfter,
                    calendars: [calendar]
                )
                let events = eventStore.events(matching: predicate)
                for event in events {
                    titles.append(event.title)
                    startDates.append(event.startDate as Date)
                    endDates.append(event.endDate as Date)
                }
            }
        }

        // Print the event titles so check if everything works correctly
        print(titles)
    }

}

You'll first check from Calendar access in fetchEventsFromCalendar(), and the actual event fetching will be handled in fetchEventsFromCalendar().

One thing: in this particular example we're looking for events one month before and one month after toady in a calendar called "Calendar". If you want to get the events for that period of time from all the calendars, you can simply remove the

            if calendar.title == calendarTitle {

line (including the closing bracket and everything that has to do with calendarTitle). You'll have an array of all the events.

How to fetch the events from local calendar in iOS swift

1 Answers1