Walkthrough: Building an iOS-based Temperature Converter with IB

Interface Builder, with its interactive GUI layout tools, helps lay out visual content. The last two walkthroughs introduced storyboards, demonstrating how you can lay out multiscene content in your applications. The next few walkthroughs shift the focus away from storyboards and to application creation. You will build a classic Fahrenheit-to-Celsius converter using a variety of Xcode/IB design approaches. In this first version the interface is laid out entirely in Interface Builder with a minimum of coding in Xcode.

If you compare this walkthrough with ones published in earlier editions of this book, you’ll recognize that the steps have become quite streamlined. That’s a side effect of the new storyboard redesign in Interface Builder. It is now far easier to create these simple utility apps using Xcode’s updates.