国外《Pro Objective-C Design Patterns for iOS》电子书配套源代码，对深入钻研IOS专业开发有很好参考价值。-Abroad, " Pro Objective-C Design Patterns for the iOS eBook supporting source code, a good reference value to delve into the IOS professional development.

1.九宫格的设计UI 2.iOS的Touch设计模式-1 squared design UI 2.iOS' s Touch Design Patterns