Skip to content

Instantly share code, notes, and snippets.

View zobkiw's full-sized avatar

Joe Zobkiw zobkiw

View GitHub Profile
@rolandoam
rolandoam / GFFParallaxNode.h
Created December 14, 2009 16:22
GFFParallaxNode
//
// GFFParallaxNode.h
//
// Created by Rolando Abarca on 12/14/09.
//
#import <Foundation/Foundation.h>
#import "cocos2d.h"
#define MAX_PARALLAX_CHILDREN 25
@jessearmand
jessearmand / mpParse.m
Created November 23, 2010 13:59
A command line tool to parse .mobileprovision file
//
// © 2008 Eugene Solodovnykov
// http://idevblog.info/mobileprovision-files-structure-and-reading/
//
#import <Foundation/Foundation.h>
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
@huyng
huyng / reflect.py
Created February 7, 2011 17:57
A simple echo server to inspect http web requests
#!/usr/bin/env python
# Reflects the requests from HTTP methods GET, POST, PUT, and DELETE
# Written by Nathan Hamiel (2010)
from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler
from optparse import OptionParser
class RequestHandler(BaseHTTPRequestHandler):
def do_GET(self):
@gonecoding
gonecoding / Readme.markdown
Created February 22, 2011 12:42
Adding methods to NSData and NSString using categories to provide AES256 encryption on iOS

Important notice

I took down this Gist due to concerns about the security of the encryption/decryption part of this code (see comments below).

Rob Napier (@rnapier) has created a publicly available class that provides similar AES encryption/decryption functionality at https://github.com/rnapier/RNCryptor.

@zwaldowski
zwaldowski / NSObject+Blocks.h
Created May 4, 2011 12:08
Perform blocks with delays and cancellation
//
// NSObject+Blocks.h
// Filemator
//
// Created by Zachary Waldowski on 4/12/11.
// Copyright 2011 Dizzy Technology. All rights reserved.
//
@interface NSObject (Blocks)
@jboner
jboner / latency.txt
Last active May 24, 2024 12:40
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@hfossli-agens
hfossli-agens / gist:4676773
Created January 30, 2013 20:45
dispatch_after with repeat / loop
static void dispatch_repeated_internal(dispatch_time_t firstPopTime, double intervalInSeconds, dispatch_queue_t queue, void(^work)(BOOL *stop))
{
__block BOOL shouldStop = NO;
dispatch_time_t nextPopTime = dispatch_time(firstPopTime, (int64_t)(intervalInSeconds * NSEC_PER_SEC));
dispatch_after(nextPopTime, queue, ^{
work(&shouldStop);
if(!shouldStop)
{
dispatch_repeated_internal(nextPopTime, intervalInSeconds, queue, work);
}
@ttscoff
ttscoff / itunesicon.rb
Last active January 13, 2022 10:07
Retrieve a 512 x 512px icon for an iOS app
#!/usr/bin/ruby
# encoding: utf-8
#
# Updated 2017-10-25:
# - Defaults to large size (512)
# - If ImageMagick is installed:
# - rounds the corners (copped from @bradjasper, https://github.com/bradjasper/Download-iTunes-Icon/blob/master/itunesicon.rb)
# - replace original with rounded version, converting to png if necessary
#
# Retrieve an iOS app icon at the highest available resolution
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active March 10, 2024 19:23
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>
@baphillips
baphillips / iOS-7-boundingRectWithSize-options-attributes-context.m
Last active July 26, 2018 15:26
iOS 7 dynamic UILabel frame adjustment for a given NSString and UIFont using boundingRectWithSize:options:attributes:context:.
NSString* string = @"Hello World";
UIFont *font = [UIFont fontWithName:@"Helvetica-BoldOblique" size:21];
CGSize constraint = CGSizeMake(300,NSUIntegerMax);
NSDictionary *attributes = @{NSFontAttributeName: font};
CGRect rect = [string boundingRectWithSize:constraint
options:(NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading)