Want to check whether EKEventStore permission exist on ios6 device - ios6

Question

Want to check whether EKEventStore permission exist on ios6 device.
EKEventStore *eventStore = [[UpdateManager sharedUpdateManager] eventStore];
if ([eventStore respondsToSelector:#selector(requestAccessToEntityType:completion:)])
{
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if (granted)
{
addEventBlock();
}
else
{
NSLog(#"Not granted");
}
}];
}
This code works only at the first time.

Answer 1

Use like this.
- (IBAction)btnAddFromDBTouched:(id)sender {
void (^addEventBlock)();
addEventBlock = ^
{
self.eventStore = [[EKEventStore alloc] init];
self.eventsList = [[NSMutableArray alloc] initWithArray:0];
self.defaultCalendar = [self.eventStore defaultCalendarForNewEvents];
NSDate *startDate = [NSDate date];
// endDate is 1 day = 60*60*24 seconds = 86400 seconds from startDate
NSDate *endDate = [NSDate dateWithTimeIntervalSinceNow:86400*365];
// Create the predicate. Pass it the default calendar.
NSArray *calendarArray = [NSArray arrayWithObject:defaultCalendar];
NSPredicate *predicate = [self.eventStore predicateForEventsWithStartDate:startDate endDate:endDate
calendars:calendarArray];
NSArray *events = [self.eventStore eventsMatchingPredicate:predicate];
nmfChooseEvent *myView = [[nmfChooseEvent alloc] init];
[myView setTableSource:events];
[self presentModalViewController:myView animated:YES];
myView.mainView=self;
return;
};
if ([eventStore respondsToSelector:#selector(requestAccessToEntityType:completion:)])
{
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if (granted)
{
addEventBlock();
}
else
{
dispatch_async(dispatch_get_main_queue(), ^{
UIAlertView *myView = [[UIAlertView alloc] initWithTitle:#"warning" message:#"To be Able to Use This Function, You Must Authorize xxx in Settings>>Privacy>>Calendars Section." delegate:nil cancelButtonTitle:"OK" otherButtonTitles:nil, nil];
[myView show];
});
}
}];
}
else
{
addEventBlock();
}
}