如何用Facebook graphic api上传视频：

http://developers.facebook.com/blog/post/532/
Keychain保存数据封装：

https://github.com/carlbrown/PDKeychainBindingsController
对焦功能的实现：

http://www.clingmarks.com/?p=612
自定义圆角Switch按件：

https://github.com/domesticcatsoftware/DCRoundSwitch
弹出窗口For iphone and ipad:

https://github.com/chrismiles/CMPopTipView
KVO详解：

http://nachbaur.com/blog/back-to-basics-using-kvo
图片浏览:

https://github.com/bdewey/Pholio
Dropbox实例：

https://github.com/bdewey/dropvault
当地天气预报实例：

https://github.com/aspitz/WxHere
可伸缩的toolBar实例：

https://github.com/aspitz/ToolDrawer
app资源保护相关：

http://aptogo.co.uk/2010/07/protecting-resources/
cocos2d中也可用UIScrollView,UITableView,UIGestureRecognizers

https://github.com/jerrodputman/CCKit
http://www.tinytimgames.com/2011/08/05/introducing-cckit/
开源音视频

doubango

Cog
iOS文档导入导出：

http://mobiforge.com/developing/story/importing-exporting-documents-ios
CoreAnimation Demo:

https://github.com/bobmccune/Core-Animation-Demos

animation-sequence

animation-sequence-with-block
CoreAnimation Dev: Part 1 – Frame By Frame Sprites With Core Animation
Part 2 – Space Time
Part 3 – Scrolling Hell
Part 4 – Parallax Scrolling
iOS jabber聊天应用开发：客户端开发

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-interface-setup/

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-custom-chat-view-and-emoticons/
iOS jabber聊天应用开发：服务器搭建

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-server-setup/
iOS快速入门：

http://www.jonathanhui.com/ios
objc学习：

http://www.jonathanhui.com/objective-c
https://github.com/carlbrown/PDKeychainBindingsController
https://github.com/ldandersen/scifihifi-iphone
KeyChain封装，安全存数据：

http://developer.apple.com/library/mac/#documentation/Security/Conceptual/keychainServConcepts/02concepts/concepts.html
http://developer.apple.com/library/ios/#samplecode/GenericKeychain/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007797-Intro-DontLinkElementID_2
iOS声音相关：

http://purplelilgirl.tumblr.com/post/9377269385/making-that-talking-app
http://dirac.dspdimension.com/Dirac3_Technology_Home_Page/Dirac3_Technology.html

http://zeroinverse.com/2010/06/iphone-audio-programming-tips/
弹珠游戏：

http://www.crowsoft.com.ar/wordpress/?p=19
spring board类UI:

https://github.com/rigoneri/myLauncher
MacOS&iOS upnp:

http://code.google.com/p/upnpx
ios block learn:

http://ios-blog.co.uk/iphone-development-tutorials/programming-with-blocks-an-overview/
https://github.com/zwaldowski/BlocksKit
弹出框中输入用户名与密码：

https://github.com/enormego/EGOTextFieldAlertView
jailbreak iphone发送sms:

http://code.google.com/p/iphone-sms/
搜索itune里app的url scheme:

https://github.com/Zwapp/schemes-scanner
横竖屏切换自动调整位置：

https://github.com/michaeltyson/TPMultiLayoutViewController
键盘出现与消失view自动移动避免遮挡：

https://github.com/michaeltyson/TPKeyboardAvoiding
http://atastypixel.com/blog/a-drop-in-universal-solution-for-moving-text-fields-out-of-the-way-of-the-keyboard/

iOS类似firebug的web调试工具：

http://phonegap.github.com/weinre/
一个UI开源库tapkulibrary，集成了calendar,coverflow https://github.com/devinross/tapkulibrary
http://maniacdev.com/2010/09/tapku-an-amazing-open-source-ios-interface-library/
数据库sqlite FMDB教程
mac的一个桌面程序，开源的 http://homepage.mac.com/nathan_day/pages/popup_dock.xml

PSTreeGraph for iPad

 https://github.com/epreston/PSTreeGraph
文件预览like QLPreviewController https://github.com/rob-brown/RBFilePreviewer
Interface Builder中用自定义字体解决方案 https://github.com/0xced/FontReplacer

有shader的UILabe

 https://github.com/nicklockwood/FXLabel
GCD学习

http://blog.slaunchaman.com/2011/02/28/cocoa-touch-tutorial-using-grand-central-dispatch-for-asynchronous-table-view-cells/

http://www.raywenderlich.com/4295/multithreading-and-grand-central-dispatch-on-ios-for-beginners-tutorial

https://github.com/SlaunchaMan/GCDExample


iPad阅读器开发

http://mobile.tutsplus.com/tutorials/iphone/building-an-ipad-reader-for-war-of-the-worlds/

http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-using-a-slider-to-scrub-a-pdf-reader/

http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-adding-a-table-of-contents-to-an-ipad-reader/

epub reader
ipad UI 24个免费资源 http://www.cocoachina.com/applenews/devnews/2011/0915/3237.html
UITableView相关

UITableView的扩展

让UITableView中有search功能教程

多列的TableView

UITableView两级树型结构

Better TableView Data structure
Orge3D for iOS

http://code.google.com/p/gamekit/

http://www.tonybhimani.com/2011/07/09/ogre3d-sdk-1-7-3-for-apple-iphone-ios-howto/
文档比Three20更全的类Three20库 https://github.com/jverkoey/nimbus
iOS Boilerplate一个库集合，方便开发

http://iosboilerplate.com/

https://github.com/gimenete/iOS-boilerplate
openCV for iOS

http://code.google.com/p/edgy-camera-ios/

https://github.com/BloodAxe/opencv-ios-template-project

https://github.com/BloodAxe/OpenCV-iOS-build-script

http://computer-vision-talks.com/2011/02/building-opencv-for-iphone-in-one-click/

http://computer-vision-talks.com/2011/01/using-opencv-in-objective-c-code/

http://computer-vision-talks.com/2011/08/a-complete-ios-opencv-sample-project/

PageCurl for iOS

https://github.com/xissburg/XBPageCurl

https://github.com/raweng/FlipView

https://github.com/Split82/HMGLTransitions

http://api.mutado.com/mobile/paperstack/
iOS PDF实例

http://www.cocoachina.com/bbs/read.php?tid=75173

https://github.com/vfr/Reader

https://github.com/shuhongwu/leaves-zoom-enhanced

https://github.com/jaspergregory/Ipad-photo-magazine

电子书开发

注释功能pdf
Core Animation

http://nachbaur.com/blog/core-animation-part-1

http://nachbaur.com/blog/core-animation-part-2

http://nachbaur.com/blog/core-animation-part-3

http://nachbaur.com/blog/core-animation-part-4
Core Data注意的地方

http://nachbaur.com/blog/smarter-core-data

http://iphonedevelopment.blogspot.com/2009/09/core-data-migration-problems.html

CoreData Helper

支持多线程的CoreData
GCD

http://nachbaur.com/blog/using-gcd-and-blocks-effectively

http://deusty.blogspot.com/2011/01/multi-core-ios-devices-are-coming-are.html
MKMapView zoom level

http://troybrant.net/blog/2010/01/mkmapview-and-zoom-levels-a-visual-guide/

http://troybrant.net/blog/2010/01/set-the-zoom-level-of-an-mkmapview/
HTML parser

http://www.cocoanetics.com/2011/09/taming-html-parsing-with-libxml-1/

https://github.com/topfunky/hpple

https://github.com/zootreeves/Objective-C-HMTL-Parser
openGLES

http://www.ityran.com/portal.php

http://gamesfromwithin.com/customizable-color-sections-with-opengl-es-1-1
Charts绘制开源库

http://code.google.com/p/core-plot/

https://github.com/ReetuRaj/MIMChart-Library说明文档
apple 私有api文档 http://hexorcist.com/private_frameworks/html/main.html
类safari的切换页面库 https://github.com/100grams/HGPageScrollView
自定义Slider组件

https://github.com/buildmobile/iosrangeslider

iOS Range Slider Part 1
iOS Range Slider Part 2
一些自定义组件：

自定义UIAlertView

自定义BadgeView

自定义数字键盘

自定义UILabel OHAttributedLabel

AQGridViewKKGridViewGMGridView
QR Encoder二维码识别 https://github.com/jverkoey/ObjQREncoder
xml解析库

https://github.com/ZaBlanc/RaptureXML
wapper map for iOS https://github.com/yinkou/OCMapView
iOS unitity

https://github.com/ZaBlanc/iBoost

https://github.com/escoz/QuickDialog/
socket http://code.google.com/p/cocoaasyncsocket/
custom camera view

https://github.com/pmark/Helpful-iPhone-Utilities

http://www.codza.com/custom-uip_w_picpathpickercontroller-camera-view
本地天气demo http://www.cocoachina.com/bbs/read.php?tid-72558-fpage-3.html
浏览器飞行动画 http://www.cocoachina.com/downloads/video/2011/1002/3313.html
切换动画demo http://www.cocoachina.com/bbs/read.php?tid-76431-page-1.html
Automatic Reference Counting http://www.mikeash.com/pyblog/friday-qa-2011-09-30-automatic-reference-counting.html
voip for ios development

http://trac.pjsip.org/repos/wiki/Getting-Started/iPhone

http://www.piemontewireless.net/PJSip155_and_iPhoneSDK312

http://code.google.com/p/siphon/
图像处理

http://www.cocoachina.com/downloads/code/2011/1009/3335.html

https://github.com/esilverberg/ios-p_w_picpath-filters

http://code.google.com/p/simple-iphone-p_w_picpath-processing/

http://developer.apple.com/library/ios/#samplecode/GLImageProcessing/Introduction/Intro.html

SSPhotoCropperViewController它的用法

NYXImagesUtilities
脚本自动生成push notification所需证书 https://github.com/jprichardson/GeneratePushCerts
自定义ActivityIndicator https://github.com/hezi/HZActivityIndicatorView
开源库for ios

boost for iphone

ffmpeg for iphone

opencore amr for iphone

OCR1 for iOS编译方法一方法二Demo

ORC2 for iOS

一些编译好的库
iOS网络相关

bonjour

ASIHttpRequest

CocoasyncSocket

AFNetworking
iOS粒子系统

http://www.baysidegames.net/blog/?p=51

http://iphonedevelopment.blogspot.com/2009/03/at-last-particle-generator.html

http://iphonedevelopment.blogspot.com/2009/01/another-opengl-particle-system-teaser.html

http://www.cartoonsmart.com/ae_cool_energy.html

http://www.cocos2d-iphone.org/archives/926

http://maniacdev.com/2009/07/source-code-particle-based-explosions-in-iphone-opengl-es/

http://developer.apple.com/library/mac/#samplecode/ReplicatorDemo/Introduction/Intro.html      iPad版源码

CAReplicatorLayer_Animation

http://pyro.fenomen-games.com/
iOS5新技术教程

Storyboards(DNA非最新)

Storyboards官方资料

tutorial-using-storyboards-in-xcode-4-2

How to use Segues, Scence and Static Content UITableViews

beginning-storyboards-in-ios-5-part-1

beginning-storyboards-in-ios-5-part-2

GLKit Tutorial

Core Image Filter

Core Image Face Detection

自定义相册

同步NSUserDefaults到iCloud
iOS图形相关

http://tumbljack.com/

3DAR3维地图
iOS美术资源

http://www.grsites.com/generate/group/2000/

http://www.openclipart.org/

http://www.iconarchive.com/

http://www.wallpaperfedd.com/category/wallpaper/3d

http://www.vickiwenderlich.com/2011/10/free-iphone-ipad-game-art-pet-santa/
iOS 游戏engine

isGL3D

OOLongEngine

cocos2d

galaxyengine
支持CSS的UIView

GAViewStyling

CSSApply
用户体验 电影胶片效果
跨平台编译for iOS https://sites.google.com/site/olipion/
SOAP for obj-C http://code.google.com/p/wsdl2objc/
Mac 开源汇总 http://code.google.com/p/polkit/