Android How to Program

6. Flag Quiz Game App

Objectives

In this chapter you’ll:

• Store String arrays in strings.xml.

• Store a set of images in subfolders of the assets folder.

• Use an AssetManager to get a list of all assets in an app.

• Use random-number generation to vary flag choices.

• Use a Drawable to display a flag image in an ImageView.

• Use a tweened animation to shake the displayed flag when the user specifies an incorrect answer.

• Use a Handler to schedule a future action.

• Use an ArrayList to hold collections of items and a HashMap to hold name–value pairs.

• Override Activity’s onCreateOptionsMenu method to create a Menu and MenuItems that enable the user to configure the app’s options.

• Use Android’s logging mechanism to log error messages.

Outline ...