Objectives

In this chapter you’ll:

Use Fragments to make better use of available screen real estate in an Activity’s GUI on phones and tablets.

Display an options menu on the action bar to enable users to configure the app’s preferences.

Use a PreferenceFragment to automatically manage and persist an app’s user preferences.

Use an app’s assets subfolders to organize image resources and manipulate them with an AssetManager.

Define an animation and apply it to a View.

Use a Handler to schedule a future task to perform on the GUI thread.

Use Toasts to display messages briefly to the user.

Launch a specific Activity with an explicit Intent.

Use various collections from the java.util package.

Define layouts for multiple device orientations.

Use Android’s logging mechanism to log error messages.