想要檢查ios6設備上是否存在EKEventStore權限

Question

想要檢查ios6設備上是否存在EKEventStore權限。

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"); 
     } 
    }]; 
} 

此代碼僅在第一次使用。

Answer 1

像這樣使用。

- (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(); 
    } 

}