Skip to content

Instantly share code, notes, and snippets.

@alex-cellcity
alex-cellcity / Version.m
Created May 30, 2011 04:55
Runtime iOS Version Checking
/*
* System Versioning Preprocessor Macros
*/
#define SYSTEM_VERSION_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)
@wxianfeng
wxianfeng / manage_simplehttpserver.sh
Created July 11, 2011 07:09
manage python SimpleHTTPServer for serve page
#!/bin/bash
##
# start|stop|restart python SimpleHTTPServer
#
# TODO:
# use shell Function for DRY
# USAGE:
# ./manage_simplehttpserver.sh start|stop|restart
#
@akisute
akisute / gist:1141953
Created August 12, 2011 12:41
Create an animated gif file from images in iOS
#import <UIKit/UIKit.h>
#import <ImageIO/ImageIO.h>
#import <MobileCoreServices/MobileCoreServices.h>
- (void)exportAnimatedGif
{
UIImage *shacho = [UIImage imageNamed:@"shacho.png"];
UIImage *bucho = [UIImage imageNamed:@"bucho.jpeg"];
NSString *path = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"animated.gif"];
@twobitlabs
twobitlabs / gist:4226365
Created December 6, 2012 17:35
Blocks cheat sheet
// http://cocoawithlove.com/2009/10/ugly-side-of-blocks-explicit.html has a nice breakdown of the syntax--it helps to think of the ^ as similar to a pointer dereference symbol *
// block typedef:
typedef void(^Block)();
typedef void(^ConditionalBlock)(BOOL);
typedef NSString*(^BlockThatReturnsString)();
typedef NSString*(^ConditionalBlockThatReturnsString)(BOOL);
// block property with typedef:
@OliverLetterer
OliverLetterer / XCDUUID.m
Created January 26, 2013 17:05
With this gist, I, as a total assembly noob, am trying to understand the XCDUUID runtime hack (https://github.com/0xced/NSUUID/blob/1.0.1/NSUUID.m#L167-L221) to be able to use NSUUID on iOS < 6.0.
@implementation XCDUUID
+ (void) load
{
// query runtime if NSUUID class already exists, if so => done
if (objc_getClass("NSUUID"))
{
return;
}
@kennyz
kennyz / kongwu_pi_tips.md
Last active December 25, 2021 12:41
kongwu pi tips

折腾Pi,解决疑难杂症最好还是去官网论坛

image http://www.raspberrypi.org/phpBB3/

支持Apple TimeMachine,实现Mac备份

在磁盘中创建备份目录 mkdir /media/usbdisk/mactimebak 推荐使用ext4分区(打开notime)

安装nettalk

@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// 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
lexrus / HD.txt
Last active July 20, 2023 08:11
All WWDC 2013 Session Videos URLs in https://developer.apple.com/wwdc/videos/ dumped with Chrome. You can download these videos **without** a Apple developer account by running the download.sh script. There is also a sample code downloader here: https://github.com/jfahrenkrug/WWDC-Downloader
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
@tylerneylon
tylerneylon / learn.lua
Last active July 11, 2024 15:28
Learn Lua quickly with this short yet comprehensive and friendly script. It's written as both an introduction and a quick reference. It's also a valid Lua script so you can verify that the code does what it says, and learn more by modifying and running this script in your Lua interpreter.
-- Two dashes start a one-line comment.
--[[
Adding two ['s and ]'s makes it a
multi-line comment.
--]]
----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------
@floriankugler
floriankugler / gist:6870499
Last active September 29, 2023 15:56
Mapping of NSURLConnection to NSURLSession delegate methods. Created by Mattt Thompson.
NSURLConnection | NSURLSession
------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------
NSURLConnectionDelegate connectionShouldUseCredentialStorage: |
------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------
NSURLConnectionDelegate connection:willSendRequestForAuthenticationChallenge: | NSURLSessionDelegate URLSession:didReceiveChallenge:completionHandler:
| N