While the development language for the current project is not swift, it is necessary to learn swift as Swift's strength replaces objective-c. But after all, is a pro-son, currently only Foundation is translated into the SWIFT,COCOA framework has not changed, there are many of the same things, learning difficulty is not very large. The following select some of the study materials, every day to see a little, naturally will ... So easy ....
Swift Learning Tutorials URL
The first Chinese Swift tutorial published website http://letsswift.com/
Swift Community http://swiftist.org/
Swift Language Guide Https://github.com/ipader/SwiftGuide
"The Swift Programming Language" Chinese version http://wiki.jikexueyuan.com/project/swift/
Ios-swift-demos
Cocoachina Swift Special http://www.cocoachina.com/special/swift/
the Swift translation group of the Heart http://swift.gg/
Http://codecloud.net/category/teach/swift-doc
http://outofmemory.cn/swift/tutorial/
Learn some of the online resources of the Apple Swift language http://www.infoq.com/cn/news/2014/06/apple-swift-learning-resources
Online Video Tutorials
SWIFTV Classroom http://www.swiftv.cn/
The http://www.chuanke.com/of Baidu biography Course
Netizen Cloud Classroom http://study.163.com/
Geek College http://www.jikexueyuan.com/
Swift Learning site featured by HL