##资讯 ### [ResearchKit](https://developer.apple.com/researchkit/) 了解健康与疾病的关键在于科研和数据，科研人员需要的是可衡量、量化、客观的数据。ResearchKit即将开源，可以为医学研究提供更多数据。 [APPLE.COM](https://developer.apple.com/researchkit/) ##技巧 ### [objc.io #22 iOS at Scale](http://www.objc.io/issue-22/) 多篇精彩文章，每篇都值得仔细研读。 [OBJC.IO](http://www.objc.io/issue-22/) ### [Apple Watch三个月开发的一些收获总结](http://jerryliu.org/ios%20programming/Apple%20Watch-Development-summary/) 介绍Apple Watch开发的一篇好文章。 [JERRYLIU.ORG](http://jerryliu.org/ios%20programming/Apple%20Watch-Development-summary/) ### [performSelector may cause a leak because its selector is unknown](http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown) 里面介绍的SuppressPerformSelectorLeakWarning这个宏可以使用下。 [STACKOVERFLOW.COM](http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown) ##工具 ### [App Store Review Guidelines History](http://www.appstorereviewguidelineshistory.com/) App Store 审核标准的各个历史版本。 [APPSTOREREVIEWGUIDELINESHISTORY.COM](http://www.appstorereviewguidelineshistory.com/) ### [XCActionBar](https://github.com/pdcgomes/XCActionBar) ‘Alfred for Xcode’ plugin。 [GITHUB.COM](https://github.com/pdcgomes/XCActionBar) ##代码 ### [DesignerNewsApp](https://github.com/MengTo/DesignerNewsApp) Build a Swift App as a designer http://designcode.io。 [GITHUB.IO](https://github.com/MengTo/DesignerNewsApp) ### [Masonry](https://github.com/Masonry/Masonry) Harness the power of AutoLayout NSLayoutConstraints with a simplified, chainable and expressive syntax. Supports iOS and OSX Auto Layout。 [GITHUB.IO](https://github.com/Masonry/Masonry)