Objectives
In this chapter you’ll:
Learn the basics of the Android Developer Tools (the Eclipse IDE and the ADT Plugin), 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 Graphical Layout editor.
Display text and two images in a GUI.
Edit the properties of 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.
2.2.1 Android Developer Tools IDE
2.2.2 TextView
s and ImageView
s
2.3.1 Launching the Android Developer Tools IDE
2.3.3 New Android Application Dialog
2.3.5 Configure Launcher Icon Step
2.4 Android Developer Tools Window
2.5 Building the App’s GUI with the Graphical Layout Editor
2.5.1 Adding Images to the Project
2.5.2 Changing the Id Property of the RelativeLayout
and the TextView
2.5.3 Configuring the TextView
2.5.4 Adding ImageView
s to Display the Images
2.7 Making Your App Accessible
2.8 Internationalizing Your App
Self-Review Exercises | Answers to Self-Review Exercises | Exercises