EKEvent Get Current Event iOS7 - ios

Question

So I need to get the current event in the calendar. I.E - an event that started and did not end yet. I have written some code but it does not work.
Through debugging I noticed my oneDayAgo variable is nil and I do not understand why.
The oneWeekFromNow variable is good.
Here is the method I have written:
-(void)getCurrentEvent{
// Get appropriate calendar
[self.store requestAccessToEntityType:EKEntityTypeEvent
completion:^(BOOL granted, NSError *error) {
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day -=1;
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
toDate:[NSDate date]
options:0];
NSDateComponents *oneWeekFromNowComponents = [[NSDateComponents alloc] init];
oneWeekFromNowComponents.week = 1;
NSDate *oneWeekFromNow = [calendar dateByAddingComponents:oneWeekFromNowComponents
toDate:[NSDate date]
options:0];
NSPredicate *predicate = [self.store predicateForEventsWithStartDate:oneDayAgo
endDate:oneWeekFromNow
calendars:nil];
NSMutableArray *currentEvens = [[NSMutableArray alloc]init];
// Fetch all events that match the predicate
[self.store enumerateEventsMatchingPredicate:predicate usingBlock:^(EKEvent *event, BOOL *stop) {
if (([event.startDate compare:[NSDate date]] == NSOrderedDescending) &&
([[NSDate date] compare:event.endDate] == NSOrderedDescending)) {
[currentEvens addObject:event];
}
}];
self.lblEvent.text = [NSString stringWithFormat:#"%#", currentEvens];
[self.view reloadInputViews];
}];
}

Answer 1

Try this instead:
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1;

Answer 2

Here is the corrected code that worked for me. I also needed to modify some other things:
-(void)getCurrentEvent{
// Get appropriate calendar
[self.store requestAccessToEntityType:EKEntityTypeEvent
completion:^(BOOL granted, NSError *error) {
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *oneDayAgoComponents = [[NSDateComponents alloc] init];
oneDayAgoComponents.day = -1;
NSDate *oneDayAgo = [calendar dateByAddingComponents:oneDayAgoComponents
toDate:[NSDate date]
options:0];
NSDateComponents *oneWeekFromNowComponents = [[NSDateComponents alloc] init];
oneWeekFromNowComponents.week = 1;
NSDate *oneWeekFromNow = [calendar dateByAddingComponents:oneWeekFromNowComponents
toDate:[NSDate date]
options:0];
NSPredicate *predicate = [self.store predicateForEventsWithStartDate:oneDayAgo
endDate:oneWeekFromNow
calendars:nil];
NSMutableArray *currentEvens = [[NSMutableArray alloc]init];
// Fetch all events that match the predicate
[self.store enumerateEventsMatchingPredicate:predicate usingBlock:^(EKEvent *event, BOOL *stop) {
if (([event.startDate compare:[NSDate date]] == NSOrderedAscending) &&
([[NSDate date] compare:event.endDate] == NSOrderedAscending)) {
[currentEvens addObject:event];
}
}];
NSString *currentEventsString = [[NSString alloc]init];
for (EKEvent *event in currentEvens) {
currentEventsString = [currentEventsString stringByAppendingString:event.title];
}
dispatch_async(dispatch_get_main_queue(), ^{
self.lblEvent.text = currentEventsString;
});
}];
}