A category to send NSNotifications in the UI thread

NSNotificationCenter+MainThread.h

// NSNotificationCenter+MainThread.h

@interface NSNotificationCenter (MainThread)
 
- (void)postNotificationOnMainThread:(NSNotification *)notification;
- (void)postNotificationOnMainThreadName:(NSString *)aName object:(id)anObject;
- (void)postNotificationOnMainThreadName:(NSString *)aName object:(id)anObject userInfo:(NSDictionary *)aUserInfo;
 
@end

// NSNotificationCenter+MainThread.m

#import "NSNotificationCenter+MainThread.h"
 
@implementation NSNotificationCenter (MainThread)
 
- (void)postNotificationOnMainThread:(NSNotification *)notification {
    [self performSelectorOnMainThread:@selector(postNotification:) withObject:notification waitUntilDone:YES];
}
 
- (void)postNotificationOnMainThreadName:(NSString *)aName object:(id)anObject {
    NSNotification *notification = [NSNotification notificationWithName:aName object:anObject];
    [self postNotificationOnMainThread:notification];
}
 
- (void)postNotificationOnMainThreadName:(NSString *)aName object:(id)anObject userInfo:(NSDictionary *)aUserInfo {
    NSNotification *notification = [NSNotification notificationWithName:aName object:anObject userInfo:aUserInfo];
    [self postNotificationOnMainThread:notification];
}
 
@end