传送门

http://www.opensource.apple.com/

iOS Developer Library

Xcode 4 User Guide

The Objective-C Programming Language

iOS Human Interface Guidelines

Transitioning to ARC Release Notes

Advanced Memory Management Programming Guide

UICatalog

Property List Programming Guide

Preferences and Settings Programming Guide

Threading Programming Guide

Quartz 2D Programming Guide

 

SQLite

An Introduction To The SQLite C/C++ Interface

SQL As Understood By SQLite

OpenGL ES

OpenGL ES - The Standard for Embedded Accelerated 3D Graphics

Khronos Developer Presentations Library 搜索“tutorial”

OpenGL ES from the Ground Up: Table of Contents （自备梯子）

 

Country Codes - ISO 3166

 

Core Data Starting Point