I want to open native IOS calendar(ical) from my application and add event. Is there any way i can open calendar for particular event?
I also follow Open iphone calendar app programmatically but not yet succeeded.
Go to Settings > General > Language & Region, then tap Region. Tap a region, then tap Change to [region]. In Calendar, tap Calendars at the bottom of the screen.
Make Sure Calendars Are Synced On All Devices If you have more than one Apple device, then ensure that the calendar is synced across all your iOS, iPadOS, and macOS devices. For this, first of all, you have to sign in using the same Apple ID on all these devices.
See the Calendar and Reminders Programming Guide. But the basic process is:
Add the EventKit.Framework
and EventKitUI.Framework
to your project. (See Linking to a Library or Framework.)
Import the header:
#import <EventKitUI/EventKitUI.h>
If creating an event, you use :
- (IBAction)didPressCreateEventButton:(id)sender
{
EKEventStore *store = [[EKEventStore alloc] init];
if([store respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
// iOS 6
[store requestAccessToEntityType:EKEntityTypeEvent
completion:^(BOOL granted, NSError *error) {
if (granted)
{
dispatch_async(dispatch_get_main_queue(), ^{
[self createEventAndPresentViewController:store];
});
}
}];
} else
{
// iOS 5
[self createEventAndPresentViewController:store];
}
}
- (void)createEventAndPresentViewController:(EKEventStore *)store
{
EKEvent *event = [self findOrCreateEvent:store];
EKEventEditViewController *controller = [[EKEventEditViewController alloc] init];
controller.event = event;
controller.eventStore = store;
controller.editViewDelegate = self;
[self presentViewController:controller animated:YES completion:nil];
}
Your view controller should conform to the EKEventEditViewDelegate
protocol:
@interface ViewController () <EKEventEditViewDelegate>
and implement the didCompleteWithAction
method:
- (void)eventEditViewController:(EKEventEditViewController *)controller didCompleteWithAction:(EKEventEditViewAction)action
{
[self dismissViewControllerAnimated:YES completion:nil];
}
You can obviously create your event any way you want. For example, this is looks for an event in the next week with the appropriate title, and if it doesn't find it, create a new event (hour long event that starts in four hours):
- (EKEvent *)findOrCreateEvent:(EKEventStore *)store
{
NSString *title = @"My event title";
// try to find an event
EKEvent *event = [self findEventWithTitle:title inEventStore:store];
// if found, use it
if (event)
return event;
// if not, let's create new event
event = [EKEvent eventWithEventStore:store];
event.title = title;
event.notes = @"My event notes";
event.location = @"My event location";
event.calendar = [store defaultCalendarForNewEvents];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [[NSDateComponents alloc] init];
components.hour = 4;
event.startDate = [calendar dateByAddingComponents:components
toDate:[NSDate date]
options:0];
components.hour = 1;
event.endDate = [calendar dateByAddingComponents:components
toDate:event.startDate
options:0];
return event;
}
- (EKEvent *)findEventWithTitle:(NSString *)title inEventStore:(EKEventStore *)store
{
// Get the appropriate calendar
NSCalendar *calendar = [NSCalendar currentCalendar];
// Create the start range date components
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1;
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
toDate:[NSDate date]
options:0];
// Create the end range date components
NSDateComponents *oneWeekFromNowComponents = [[NSDateComponents alloc] init];
oneWeekFromNowComponents.day = 7;
NSDate *oneWeekFromNow = [calendar dateByAddingComponents:oneWeekFromNowComponents
toDate:[NSDate date]
options:0];
// Create the predicate from the event store's instance method
NSPredicate *predicate = [store predicateForEventsWithStartDate:oneDayAgo
endDate:oneWeekFromNow
calendars:nil];
// Fetch all events that match the predicate
NSArray *events = [store eventsMatchingPredicate:predicate];
for (EKEvent *event in events)
{
if ([title isEqualToString:event.title])
{
return event;
}
}
return nil;
}
Use url scheme to open the native calender app.
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"calshow://"]];
http://devsupport.layar.com/entries/23687993-How-to-use-Custom-URI-Scheme-Button-in-the-Creator-
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