Useful abbreviations

prefix.pch

// GCD
#define async_main(aBlock) dispatch_async(dispatch_get_main_queue(), aBlock)
#define async_global(aBlock) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), aBlock)

// UIKit
#define Alert(aTitle,aMessage) [[[[UIAlertView alloc] initWithTitle:aTitle message:aMessage delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK",nil] autorelease] show]
#define NetworkAlert Alert(@"Network error",@"Please check your network connection.")

Useful abbreviations for iOS and Mac development