soffes

Objective-C Coding Convention and Best Practices

Most of these guidelines are to match Apple's documentation and community-accepted best practices. Some are derived some personal preference. This document aims to set a standard way of doing things so everyone can do things the same way. If there is something you are not particularly fond of, it is encouraged to do it anyway to be consistent with everyone else.

This document is mainly targeted toward iOS development, but definitely applies to Mac as well.

Operators

NSString *foo = @"bar";

rreeger

#RSS Feed Resource for Brett Terpstra's Slogger

I hacked this together from numerous places as a resource for those using Slogger (graciously offered by Brett Terpstra).

I have tried to use ALL_CAPS in the feeds to note those areas that will require your specific info.

Feel free to share the list and make additions. And please let me know if there is anything here that needs correcting.

##App.net

• Feed

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' | \

janodev

#import <Foundation/Foundation.h>

@interface MySingleton : NSObject

+(instancetype) sharedInstance;

// clue for improper use (produces compile time error)
+(instancetype) alloc __attribute__((unavailable("alloc not available, call sharedInstance instead")));
-(instancetype) init  __attribute__((unavailable("init not available, call sharedInstance instead")));
+(instancetype) new   __attribute__((unavailable("new not available, call sharedInstance instead")));

soffes

platform :ios, '5.0'

# Awesome networking
pod 'AFNetworking'

# Backported UICollectionView
pod 'PSTCollectionView'

# Rich text
pod 'TTTAttributedLabel'

steipete

// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

#import <objc/runtime.h>
#import <objc/message.h>

lexrus

http://devstreaming.apple.com/videos/wwdc/2013/710xfx3xn8197k4i9s2rvyb/710/710-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/202xdx2x47ezp1wein/202/202-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/200xdx2x35e1pxiinm/200/200-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/413xdx5x97itb5ek4yex3r7/413/413-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/612xax4xx65z1ervy5np1qb/612/612-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/221xex4xxohbllf4hblyngt/221/221-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/220xbx4xipaxfd1tggxuoib/220/220-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/711xcx4x8yuutk8sady6t9f/711/711-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/404xbx2xvp1eaaqonr8zokm/404/404-HD.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2013/505xbx4xrgmhwby4oiwkrpp/505/505-HD.mov?dl=1

JaviSoto

#define MSDesignatedInitializer(__SEL__) __attribute__((unavailable("Invoke the designated initializer `" # __SEL__ "` instead.")))

// Sample usage:

- (instancetype)initWithObject:(id)object;
- (instancetype)init MSDesignatedInitializer(initWithObject:); // <- This even gets auto-complete.

// Now calling init on this class would throw a warning.

nicklockwood

Singleton.h
-------------

@protocol Singleton
@optional

+ (instancetype)sharedInstance;

@end

prendio2

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    NSIndexPath *selectedRowIndexPath = [self.tableView indexPathForSelectedRow];
    if (selectedRowIndexPath) {
        [self.tableView deselectRowAtIndexPath:selectedRowIndexPath animated:YES];
        [[self transitionCoordinator] notifyWhenInteractionEndsUsingBlock:^(id<UIViewControllerTransitionCoordinatorContext> context) {
            if ([context isCancelled]) {
                [self.tableView selectRowAtIndexPath:selectedRowIndexPath animated:NO scrollPosition:UITableViewScrollPositionNone];