andymatuschak

//
//  NSObject+BlockObservation.h
//  Version 1.0
//
//  Andy Matuschak
//  andy@andymatuschak.org
//  Public domain because I love you. Let me know how you use it.
//

#import <Cocoa/Cocoa.h>

OliverLetterer

@implementation XCDUUID

+ (void) load
{
    // query runtime if NSUUID class already exists, if so => done
    if (objc_getClass("NSUUID"))
    {
        return;
    }
    

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' | \

alokc83

#!/bin/sh
# xcode-build-number-generator.sh
# @desc Automaticvally create build number every time using curent day, month and year
# @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"

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>

heroicyang

var githubList =  [
{
name:'系统基础库',
list: [

{name:'Category/Util',
list: [
    {name:'sstoolkit',          owner:'soffes',          desc:'一套Category类型的库,附带很多自定义控件 功能不错～'},
    {name:'BlocksKit',          owner:'pandamonia',      desc:'将Block风格带入UIKit和Founcation'},
    {name:'cocoa-helpers',      owner:'enormego',        desc:'一些Cocoa的扩展 2年前的工程'},

steipete

static Boolean PSPDFCaseInsensitiveEqualCallback(const void *a, const void *b) {
    id objA = (__bridge id)a, objB = (__bridge id)b;
    Boolean ret = FALSE;
    if ([objA isKindOfClass:NSString.class] && [objB isKindOfClass:NSString.class]) {
        ret = ([objA compare:objB options:NSCaseInsensitiveSearch|NSLiteralSearch] == NSOrderedSame);
    }else {
        ret = [objA isEqual:objB];
    }
    return ret;
}

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

patriciogonzalezvivo

Trigonometry

const float PI = 3.1415926535897932384626433832795;
const float PI_2 = 1.57079632679489661923;
const float PI_4 = 0.785398163397448309616;

float PHI = (1.0+sqrtf(5.0))/2.0;

jennybc

Finessing Excel's stupid line endings

I am sheepish to admit a certain type of routine Microsoft Excel use.

Current example: I am marking for STAT 545. I use R to create a comma delimited marking sheet, by joining the official class list and peer reviews. The sheet contains variables, initially set to NA, where the TAs and I enter official marks and optional comments.

This is where Excel comes in. I like its visual organization of this comma delimited file much more than, say, using a plain text editor. I use the ability to hide columns, resize columns, wrap text, and (gasp!) even fill rows with grey to indicate I am done.

I keep saving the file as comma delimited and I put up with Excel's incessant freak out about "losing features". This is not a one time thing. I need to save and commit this file many times before it is considered done.