I've written a lot about RubyMotion, but one aspect I haven't touched on is how you can mix-and-match Objective-C and Ruby. That means you can use Objective-C code in RubyMotion projects and use Ruby code in traditional Objective-C apps. That sounds like black-magic, so let's walk through some quick examples. Objective-C in Ruby Most iOS developers have a deep backlog of existing code, and porting