1.Getting Started
https://developer.apple.com/library/ios/navigation/#section=Resource%20Types&topic=Getting%20Started
其中 Start Developing iOS Apps Today 示例用的 Xcode 是 6.1.1 版本(当前最新版本)
2. View Programming Guide for iOS
https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/ViewPG_iPhoneOS/Introduction/Introduction.html#//apple_ref/doc/uid/TP40009503
3. Size Classes Design Help
https://developer.apple.com/library/ios/recipes/xcode_help-IB_adaptive_sizes/_index.html#//apple_ref/doc/uid/TP40014436
4. connect an iphone to another iphone programically using wifi
http://stackoverflow.com/questions/5742839/how-can-i-connect-a-iphone-to-another-iphone-or-ipad-programically-using-wifi
5. Tutorial Networking and bonjour on iphone
http://www.whatsoniphone.com/blog/tutorial-networking-and-bonjour-on-iphone/
6. CFNetwork Programming Guide
https://developer.apple.com/library/ios/documentation/Networking/Conceptual/CFNetwork/Introduction/Introduction.html#//apple_ref/doc/uid/TP30001132
7. IOS bonjour
http://blog.csdn.net/cssmhyl/article/details/7920431
8. Advanced Memory Management Programming Guide
https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/MemoryMgmt/Articles/MemoryMgmt.html#//apple_ref/doc/uid/10000011i