Dan Wineman dwineman

Greetings, NSHipsters!

As we prepare to increment our NSDateComponents -year by 1, it's time once again for NSHipster end-of-the-year Reader Submissions! Last year, we got some mind-blowing tips and tricks. With the release of iOS 7 & Mavericks, and a year's worth of new developments in the Objective-C ecosystem, there should be a ton of new stuff to write up for this year.

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:

Using NSStringFromSelector(@selector()) as a safer way to do KVC / KVO / NSCoding.
Panic's [rather surprising discovery about the internals of the Lightning Digital AV Adapter](http://www.panic.com/blog/the-lightning-di

	#Deploy and rollback on Heroku in staging and production
	task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
	task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

	namespace :deploy do
	PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
	STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

	task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
	task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

	Dear soon-to-be-former user,

	We've got some fantastic news! Well, it's great news for us anyway. You, on
	the other hand, are fucked.

	We've just been acquired by:

	[ ] Facebook
	[ ] Google
	[ ] Twitter

	#import <UIKit/UIKit.h>

	@interface UIView (SMFrameAdditions)

	@property (nonatomic, assign) CGPoint $origin;
	@property (nonatomic, assign) CGSize $size;
	@property (nonatomic, assign) CGFloat $x, $y, $width, $height; // normal rect properties
	@property (nonatomic, assign) CGFloat $left, $top, $right, $bottom; // these will stretch the rect

	@end

	The enclosed config.xml file will instruct Jenkins to check out and build llvm + clang, archiving the resulting clang binary.

	The configuration will build daily and will retain builds for 5 days.

	To add it to your Jenkins install, just copy the config.xml file to e.g.:

	jobs/Clang/config.xml

	Then "reload configuration" in Jenkins, or stop and start Jenkins to reload it implicitly.

	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)

	// Set up the UIRefreshControl.
	self.refreshControl = [[UIRefreshControl alloc] init];
	[self.refreshControl addTarget:self
	action:@selector(refreshInvoked:forState:)
	forControlEvents:UIControlEventValueChanged];

	// Create a UITableViewController so we can use a UIRefreshControl.
	UITableViewController *tvc = [[UITableViewController alloc] initWithStyle:self.tableView.style];
	tvc.tableView = self.tableView;
	tvc.refreshControl = self.refreshControl;

	After spending the better part of the month implementing date support
	in RethinkDB, Mike Lucy sent the team the following e-mail. It would
	have been funny, if it didn't cause thousands of programmers so much
	pain. Read it, laugh, and weep!

	-----

	So, it turns out that we're only going to support dates between the
	year 1400 and the year 10000 (inclusive), because that's what boost
	supports.

	ACTION
	AD_HOC_CODE_SIGNING_ALLOWED
	ALTERNATE_GROUP
	ALTERNATE_MODE
	ALTERNATE_OWNER
	ALWAYS_SEARCH_USER_PATHS
	ALWAYS_USE_SEPARATE_HEADERMAPS
	APPLE_INTERNAL_DEVELOPER_DIR
	APPLE_INTERNAL_DIR
	APPLE_INTERNAL_DOCUMENTATION_DIR

	@interface NSKeyedUnarchiver (Xcode5Fix)
	@end

	@implementation NSKeyedUnarchiver (Xcode5Fix)

	+ (void)load
	{
	[self exchangeInstanceMethod:@selector(decodeInt32ForKey:)
	withMethod:@selector(xcode5Fix_decodeInt32ForKey:)];
	}