Remove duplicate entries in calendar iOS - ios

Question

I'm trying to save the events in native calendar. However, my events are being saved in the calendar but every time I run the code on device or simulator it creates duplicate entries. I have used everything needed to avoid it but couldn't get any help.
Here is my code.
-(void )addEvents :(NSMutableArray *)sentarray{
for ( int i =0; i<sentarray.count; i++) {
Schedule *schdeule = [events objectAtIndex:i];
EKEventStore *store = [[EKEventStore alloc] init];
[store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
dispatch_async(dispatch_get_main_queue(), ^{
if (error)
{
NSLog(#"Error in dispatching data in the queue");
}
else if (!granted) {
NSLog(#"NoPermission to access the calendar");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error" message:#"Cannot sync data with your calendar" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
return;
}
else{
EKEvent *event = [EKEvent eventWithEventStore:store];
event.title =schdeule.title;
event.startDate = schdeule.startDate; //today
event.endDate = schdeule.endDate; //set 1 hour meeting
event.calendar = [store defaultCalendarForNewEvents];
NSError *err = nil;
[store saveEvent:event span:EKSpanThisEvent commit:YES error:&err];
// Store this so you can access this event later for editing
savedEventId = event.eventIdentifier;
if (!err) {
NSPredicate *predicateForEventsOnMeetingDate = [store predicateForEventsWithStartDate:schdeule.startDate endDate:schdeule.endDate calendars:nil]; // nil will search through all calendars
NSArray *eventsOnMeetingDate = [store eventsMatchingPredicate:predicateForEventsOnMeetingDate];
__block BOOL eventExists = NO;
[eventsOnMeetingDate enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
for (EKEvent *eventToCheck in eventsOnMeetingDate) {
if ([eventToCheck.title isEqualToString:schdeule.title]) {
eventExists = YES;
}
}
if (eventExists == NO) {
EKEvent *addEvent = [EKEvent eventWithEventStore:store];
addEvent.title = schdeule.title;
addEvent.startDate = schdeule.startDate;
addEvent.endDate =schdeule.endDate;
[addEvent setCalendar:[store defaultCalendarForNewEvents]];
[store saveEvent:addEvent span:EKSpanThisEvent commit:YES error:nil];
}
}];
NSLog(#"saved");
if (i == sentarray.count-1) {
// [[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"calshow://"]];
}
}
else {
NSLog(#"%#",[err localizedDescription]);
}
}
});
}];
}
}

Answer 1

apply break after eventExists = YES; like
... // other code
for (EKEvent *eventToCheck in eventsOnMeetingDate) {
if ([eventToCheck.title isEqualToString:schdeule.title]) {
eventExists = YES;
break;
}
}
... //other code