3. Get Started with Interface Builder
All iPad applications have one thing in common: Each has a user interface. The user interface will differ across the apps, but you can count on each app having one. You can create the user interface for your app in either of two ways: You can write Objective-C code or use Interface Builder. Interface Builder (IB) is the better, easier approach, which is why this chapter teaches you all you need to know to get started with IB.
IB is built into Xcode. As its name implies, IB is a graphical tool for building user interfaces. While everything you do in IB can be done in code, IB helps you do it faster and with fewer bugs.
You may find IB different from the user interface (UI) designers you ...