zypsg

@interface UIUnderlinedButton : UIButton

+ (UIUnderlinedButton*) underlinedButton;

@end

steipete

nline void pspdf_dispatch_sync_reentrant(dispatch_queue_t queue, dispatch_block_t block) {
    dispatch_get_current_queue() == queue ? block() : dispatch_sync(queue, block);
}

subdigital

// Property Nonatomic Strong
// Platform: All
// Completion Scopes: ClassInterfaceMethods

@property (nonatomic, strong) <# class_name #> *<# variable_name #>;

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

jaybaird

NSString * eventForCategoryAction(NSString *category, NSString *action) {
    return [NSString stringWithFormat:@"%@:%@", (category) ? category : @"default", action]
}

void __attribute__((overloadable)) TrackEvent(NSString *category, NSString *action, NSDictionary *infoDict) {
    [Flurry trackEvent:eventForCategory(category, action) withParameters:infoDict];
}

void __attribute__((overloadable)) TrackEvent(NSString *category, NSString *action) {
    TrackEvent(category, action, nil);

mayoff

#import <UIKit/UIKit.h>
#import <ImageIO/ImageIO.h>
#import <MobileCoreServices/MobileCoreServices.h>

static UIImage *frameImage(CGSize size, CGFloat radians) {
    UIGraphicsBeginImageContextWithOptions(size, YES, 1); {
        [[UIColor whiteColor] setFill];
        UIRectFill(CGRectInfinite);
        CGContextRef gc = UIGraphicsGetCurrentContext();
        CGContextTranslateCTM(gc, size.width / 2, size.height / 2);

0xced

#import <Foundation/Foundation.h>

@interface NSObject (Subclasses)

+ (NSSet *) subclasses_xcd;

@end

mattt

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep UI_APPEARANCE_SELECTOR ./*     | \
  sed 's/NS_AVAILABLE_IOS(.*)//g'     | \
  sed 's/NS_DEPRECATED_IOS(.*)//g'    | \
  sed 's/API_AVAILABLE(.*)//g'        | \
  sed 's/API_UNAVAILABLE(.*)//g'      | \
 sed 's/UI_APPEARANCE_SELECTOR//g' | \

markd2

#import <Foundation/Foundation.h>
#import <mach/mach_time.h>  // for mach_absolute_time() and friends

// clang -g -fobjc-arc -Weverything -Wno-unused-parameter -framework Foundation -o iteration iteration.m

// Run this by passing arguments on the command line.  Run without any
// arguments to see the supported flags.  Each time a flag is used causes
// that test to be run and timed, with the time (in seconds) output when
// it finishes.  Be careful not to do anything else on your machine (such
// as surfing Redding while getting bored looking at the terminal) otherwise

indragiek

//
//  FGOManagedObjectContextStack.h
//
//  Created by Indragie Karunaratne on 2012-12-23.
//

#import <Foundation/Foundation.h>

typedef void (^FGOConfigurationBlock)(id);