Chapter 3. Evolution – From Objective-C to RubyMotion

"Actually, I'm trying to make Ruby natural, not simple."

— Matz

In this chapter, we will have a detailed discussion on how Ruby is implemented in RubyMotion. We will also understand how we can use the various Objective-C objects in our Ruby code. As we know, the iOS SDK is written in Objective-C, which is a simple extension of the C language. Since this is a book on learning RubyMotion, we will not focus too much on this. However, we will make sure you have enough knowledge on Objective-C to program in RubyMotion. In this chapter, we will cover the following topics:

• How Ruby and Objective-C work together in RubyMotion

• In what ways are RubyMotion objects inherited from Objective-C

• Interfacing with C and Objective-C – learning about data types

• Memory management with RubyMotion