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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";
@shazron
shazron / gist:943736
Created April 27, 2011 04:55
About XCode 4 Project Template (How To Create Custom Project Template)
From: http://snipt.net/yonishin/about-xcode-4-project-template
XCode 4 Projects and Files Template Folder: /Developer/Library/Xcode/Templates
Examples:
/Developer/Library/Xcode/Templates/Project Templates/Base/Other/Empty.xctemplate
/Developer/Library/Xcode/Templates/Project Templates/Base/Base.xctemplate
/Developer/Library/Xcode/Templates/Project Templates/Mac/Mac Base.xctemplate
/Developer/Library/Xcode/Templates/Project Templates/Mac/Application/Command Line Tool.xctemplate
/Developer/Library/Xcode/Templates/Project Templates/Mac/Application/Cocoa Application.xctemplate
@pksunkara
pksunkara / config
Last active November 15, 2024 16:02
Sample of git config file (Example .gitconfig) (Place them in $XDG_CONFIG_HOME/git)
[user]
name = Pavan Kumar Sunkara
email = [email protected]
username = pksunkara
[init]
defaultBranch = master
[core]
editor = nvim
whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
pager = delta
@staydecent
staydecent / media_queries.css
Created June 12, 2011 17:46
Example of various media queries for responsive web design.
/* Media queries used on blog.staydecent.ca by Adrian Unger
check my full source at:
http://blog.staydecent.ca/static/css/style-0.1.6.css */
@media only screen and (min-width:768px) and (max-width:1269px) {
/* In my particular design, I used a fluid grid limited to a
max-width of 1140px, while (if there is enough room)
pushing the menu outside of layout, requiring a total
limit of at least 1270px.
So, this first query applies to any screen-width less
@kylefox
kylefox / color.m
Created January 27, 2012 17:45
Generate a random color (UIColor) in Objective-C
/*
Distributed under The MIT License:
http://opensource.org/licenses/mit-license.php
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
@MaximKeegan
MaximKeegan / FadeScrollView.h
Created April 24, 2012 11:15
Fade edges UIScrollView
//
// FadeScrollView.h
// scroll_test
//
// Created by Maxim Keegan on 24.04.12.
// Copyright (c) 2012 East Media Ltd. All rights reserved.
//
#import <UIKit/UIKit.h>
@gereon
gereon / gist:3150445
Created July 20, 2012 12:20
Mac OSX Spotlight Enhancement

Mac OSX Spotlight Enhancement

Add this to Info.plist in /System/Library/Spotlight/RichText.mdimporter/Contents/ and Spotlight will search for source code files.

<string>public.c-header</string>
<string>public.c-plus-plus-header</string>
<string>public.c-source</string>
<string>public.objective-c-source</string>
public.c-plus-plus-source
@sekati
sekati / xcode-build-bump.sh
Created July 24, 2012 20:44
Xcode Auto-increment Build & Version Numbers
# xcode-build-bump.sh
# @desc Auto-increment the build number every time the project is run.
# @usage
# 1. Select: your Target in Xcode
# 2. Select: Build Phases Tab
# 3. Select: Add Build Phase -> Add Run Script
# 4. Paste code below in to new "Run Script" section
# 5. Drag the "Run Script" below "Link Binaries With Libraries"
# 6. Insure that your starting build number is set to a whole integer and not a float (e.g. 1, not 1.0)
@BenedictC
BenedictC / proto+posing.m
Created August 5, 2012 10:19
Prototype inheritance and posing for Objective-C
//
// proto+posing.m
//
// Created by Benedict Cohen on 04/08/2012.
// Copyright (c) 2012 Benedict Cohen. All rights reserved.
//
/*
The motivation for this code was to find a way to create subclasses which only differ slightly to their super classes
without having to create a new file. The solution was inspired by prototype inheritance found in Javascript (and IO).
@numo16
numo16 / Macros.h
Created August 20, 2012 20:38
Some useful iOS/Objective-C Macros
#define ApplicationDelegate ((AppDelegate *)[[UIApplication sharedApplication] delegate])
#define UserDefaults [NSUserDefaults standardUserDefaults]
#define NotificationCenter [NSNotificationCenter defaultCenter]
#define SharedApplication [UIApplication sharedApplication]
#define Bundle [NSBundle mainBundle]
#define MainScreen [UIScreen mainScreen]
#define ShowNetworkActivityIndicator() [UIApplication sharedApplication].networkActivityIndicatorVisible = YES
#define HideNetworkActivityIndicator() [UIApplication sharedApplication].networkActivityIndicatorVisible = NO
#define NetworkActivityIndicatorVisible(x) [UIApplication sharedApplication].networkActivityIndicatorVisible = x
#define NavBar self.navigationController.navigationBar