2 Welcome App

Objectives

In this chapter you’ll:

  • Learn the basics of the Android Studio IDE, which you’ll use to write, test and debug your Android apps.

  • Use the IDE to create a new app project.

  • Design a graphical user interface (GUI) visually (without programming) using the IDE’s layout editor.

  • Display text and an image in a GUI.

  • Edit the properties of views (GUI components).

  • Build and launch an app in the Android emulator.

  • Make the app more accessible to visually impaired people by specifying strings for use with Android’s TalkBack and Explore-by-Touch features.

  • Support internationalization so your app can display strings localized in different languages.

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