Erik Kastner has put together a great tutorial showing you how to build a graphical OS X app using Ruby and RubyCocoa. For a less wordy approach, there's also a short screencast which shows you the whole process from start to finish.
With the continual improvements of the RubyCocoa library, and Apple's commitment to Ruby for Cocoa development in OS X 10.5, Ruby is rapidly becoming a viable alternative to Objective C and Java for developing OS X apps.
Another great resource is RubyCocoa.com, a site that features several RubyCocoa tutorials and articles.
Comments
Martijn ·
I've written a small RubyCocoa app myself a while ago and I must say I can see the potential. The framework is really Rubyesque, with automating conversion between Ruby and Cocoa variable types and objects. Even though, I really advise everyone to read a few chapters about Cocoa/Objective-C development to get some insight in working with XCode and the MVC concepts behind Cocoa. Then you should be up and running with RubyCocoa in no time.
Lawrence Oluyede ·
The alternatives are ObjC and Python with PyObjC which will be shipped with Leopard. As far as I know the Java-ObjectiveC bridge has been deprecated, see: http://developer.apple.com/documentation/Cocoa/Conceptual/JavaTutorial/chapter01/chapter_1_section_1.html