Chapter 2. Designing the user interface

The chapter 1 apps were simple, but they taught you a lot about how the different parts of App Inventor fit together. In this chapter, you’ll build on this to make apps that look fun and do interesting things using graphics and sound. The basic app you’ll make is called Getting to Know Ewe. Prod the sheep, and it makes a cute “baa!” sound. You’ll then improve the app to make the sheep disappear in fright if you shake the phone—an app called Ewe Scared Her!

People choose to download apps because the apps do something useful, look attractive, and are as easy to use as possible. The “doing something useful” ...

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