Part I. Preparing Your First App

Every beginning is hard—but not so with App Inventor (AI)! AI is aimed specifically at the needs of beginners who want to write their own app for an Android smartphone for the first time, or who have never before written a program for a digital system such as a computer or smartphone. But why “write”? With AI, you do not even have to painstakingly type complicated program code into a boring text editor, as you may have seen in some old hacker movies from the 1980s or experienced yourself in the early days of your school’s or university’s computer working group. With the visual development language AI, you can quickly develop the applications with a user interface that is as comfortable, interactive, and graphic ...

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