February 2012
Intermediate to advanced
872 pages
22h 43m
English
Content preview from iOS 5 Programming CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
14.8. Handling Event Changed Notifications
Problem
You want to get notified in your application when the user changes the contents of the Calendar database.
Solution
Register for the EKEventStoreChangedNotification
notification:
- (EKCalendar *) calDAVCalendarWithTitleContaining:(NSString *)paramDescription inEventStore:(EKEventStore *)paramEventStore{ EKCalendar *result = nil; for (EKCalendar *thisCalendar in paramEventStore.calendars){ if (thisCalendar.type == EKCalendarTypeCalDAV){ if ([thisCalendar.title rangeOfString:paramDescription].location != NSNotFound){ return thisCalendar; } } } return result; } - (void) eventsChanged:(NSNotification *)paramNotification{ NSMutableArray *invalidatedEvents = [[NSMutableArray alloc] init]; NSLog(@"Refreshing array of events..."); for (EKEvent *event in self.eventsForOneYear){ if ([event refresh] == NO){ [invalidatedEvents addObject:event]; } } if ([invalidatedEvents count] > 0){ [self.eventsForOneYear removeObjectsInArray:invalidatedEvents]; } } - (BOOL) application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{ self.eventStore = [[EKEventStore alloc] init]; EKCalendar *calendar = [self calDAVCalendarWithTitleContaining:@"vandad.np@gmail.com" inEventStore:self.eventStore]; NSTimeInterval NSOneYear = 1 * 365 * 24 * 60 * 60; NSDate *startDate = [NSDate date]; NSDate *endDate = [startDate dateByAddingTimeInterval:NSOneYear]; NSArray *calendars = [[NSArray alloc] initWithObjects:calendar, nil]; NSPredicate ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.