Pitiphong Phongpattranont pitiphong-p

Howdy howdy, NSHipsters!

If you alloc init an NSCalendar, you'll notice that New Year's Eve falls on a Monday this year, a.k.a. "the day NSHipster is published every week". What fun!

So in celebration of the upcoming year++, I thought it'd be fun to compile a list of some of your favorite tips and tricks of the trade. Submit your favorite piece of Objective-C trivia, framework arcana, hidden Xcode feature, or anything else you think is cool, and you could have it featured in the year-end blowout article. Just comment on this gist below!

Here are a few examples of the kind of things I'd like to see:

StaticObjcMethods from [Apple]((http://developer.apple.com/library/mac/#samplecode/CocoaTipsAndTricks/Introduction/Intro.html): Demonstrates how to use static Objective-C m

Simple visual illustrations of how CGRectDivideWithPadding works.

Slicing from `CGRectMinXEdge`

  +-------+---------+------------>
e |       |         |
d | slice | padding | remainder…
g |       |         |
e |       |         |

	# /bin/bash

	#Usage: $ ./cs_xproj_validate.sh path/to/xcode/project/file/theproject.xcodeproj
	#More info: http://stackoverflow.com/q/13962341/89035

	PROJECT_FILE="$1/project.pbxproj"

	PREVIOUS_LINE=-1

	for LINE in `cat "$PROJECT_FILE" \| grep -n CODE_SIGN_IDENTITY \| grep -o -E '^([0-9]*)'`

	Copyright (c) 2013 Jamz Tang <[email protected]>

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is furnished
	to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all

	@implementation NSObject (Identity)

	- (BOOL)LR_isClass
	{
	return [self class] == self;
	}

	- (BOOL)LR_isProtocol
	{
	return [self class] == NSClassFromString(@"Protocol");

	(function(){
	$('link[rel="stylesheet"]').each(function(i, elem) {
	// Make an anchor tag with the stylesheet's href -- this is a weird/handy way of
	// working with URLs in the browser.
	var anchorTag = $('a').attr('href', elem.getAttribute('href'))[0];

	// Rewrite the URL to have a cache busting parameter. This assumes
	// that any query params weren't significant.
	anchorTag.search = "ts=" + (+new Date);

	@implementation BHSCollectionViewFlowLayout

	- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect {
	NSArray *allAttrs = [super layoutAttributesForElementsInRect:rect];
	for (UICollectionViewLayoutAttributes *attributes in allAttrs) {
	attributes.frame = CGRectIntegral(attributes.frame);
	}
	return allAttrs;
	}

	//
	// NSProcessInfo+DetectTestEnvironment.h
	// Memoir
	//
	// Created by JM - http://jmnavarro.github.com
	//

	#import <Foundation/Foundation.h>

	@interface NSProcessInfo (DetectTestEnvironment)

	Application Specific Information:
	ProductBuildVersion: 4H127
	ASSERTION FAILURE in /SourceCache/IDEInterfaceBuilder/IDEInterfaceBuilder-3084/Framework/Connections/Interface/IBConnectionPopUpMenu.m:388
	Details: Need a menu.
	Function: NSMenuItem IBPopUpConnectionMenuWithMenuItems(NSArray , NSMenuItem , NSEvent , NSRect, BOOL, NSSet , CGFloat, NSWindow , NSColor , NSColor , NSColor , NSColor , id<IBConnectionPopUpMenuDelegate>)
	Thread: <NSThread: 0x40030a1e0>{name = (null), num = 1}
	Hints: None
	Backtrace:
	0 0x000000010c77b249 -[IDEAssertionHandler handleFailureInFunction:fileName:lineNumber:messageFormat:arguments:] (in IDEKit)
	1 0x000000010ba2ec65 _DVTAssertionHandler (in DVTFoundation)

Pitiphong Phongpattranont pitiphong-p

Slicing from CGRectMinXEdge

Slicing from `CGRectMinXEdge`