Chapter 3. Coding in Objective-C

This chapter covers

  • Creating classes to match your designs
  • Declaring and implementing messages and properties
  • Connecting code to views in Interface Builder

In the last chapter, you learned how to go from ideas to object-oriented designs. In this chapter, you’ll learn how to code those designs. By iteratively applying the concepts of sketching, designing, and coding, you’ll eventually have an app.

Figure 3.1. Sketch, design, code

To finish an app, you’ll go through this loop many times, refining it on each pass. You already know how to create designs by sending messages to classes that are organized into ...

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