Self-Review Exercises

5.1 Fill in the blanks in each of the following statements:

a) To access the app’s assets folder’s contents, a method should get the app’s AssetManager by calling method ______ (inherited indirectly from class ContextWrapper).

b) Files in the assets folders are accessed via a(n) ______ (package android.content.res), which can provide a list of all of the file names in a specified subfolder of assets and can be used to access each asset.

c) A(n) ______ animation moves a View within its parent.

d) By default, animations in an animation set are applied in parallel, but you can use the ______ attribute to specify the number of milliseconds into the future at which an animation should begin. This can be used to sequence the animations in a set.

5.2 State whether each of the following is true or false. If false, explain why.

a) We use AnimationUtils static method loadAnimation to load an animation from an XML file that specifies the animation’s options.

b) Android does not provide a logging mechanism for debugging purposes.

c) ImageView’s Adjust View Bounds property specifies whether or not the ImageView maintains the aspect ratio of its Drawable.

d) You load color and String array resources from the colors.xml and strings.xml files into memory by using the Activity’s Resources object.

e) Use activities to create reusable components and make better use of the screen real estate in a tablet app.