##资讯 ### [ResearchKit正式开源](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可以为医学研究提供更多数据。 [APPLE.COM](https://developer.apple.com/researchkit/#) ##技巧 ### [#23 Video](http://www.objc.io/issue-23) Welcome to issue 23 of objc.io. This month is all about video. [OBJC.IO](http://www.objc.io/issue-23) ### [Researching ResearchKit](http://petersteinberger.com/blog/2015/researching-researchkit/) ResearchKit所使用的一些技巧分析。 [PETERSTEINBERGER.COM](http://petersteinberger.com/blog/2015/researching-researchkit/) ### [Get the current first responder without using a private API](http://stackoverflow.com/questions/1823317/get-the-current-first-responder-without-using-a-private-api) A common way of manipulating the first responder is to use nil targeted actions.[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil]; [STACKOVERFLOW.COM](http://stackoverflow.com/questions/1823317/get-the-current-first-responder-without-using-a-private-api) ##代码 ### [TMCache](https://github.com/tumblr/TMCache) Fast parallel object cache for iOS and OS X. [GITHUB.COM](https://github.com/tumblr/TMCache) ### [samurai-native](https://github.com/hackers-painters/samurai-native) Bring web standards to native platform. [GITHUB.COM](https://github.com/hackers-painters/samurai-native)