Android How to Program, 3/e

Exercises

1. 2.3 Fill in the blanks in each of the following statements:

   1. Android Studio’s            allows you to build GUIs using drag-and-drop techniques.

   2. For an app based on the Empty Activity template, the GUI layout is stored in an XML file called           , by default.

   3. The default GUI for an app based on the Empty Activity template consists of a(n)            (layout) and a TextView containing "Hello world!".

   4. The documentation for supporting multiple screen sizes recommends that you use density-independent pixels for the dimensions of GUI components and other screen elements and            for font sizes.

   5. One density-independent pixel is equivalent to one pixel on a screen with 160 dpi (dots per inch). On a screen with 240 dpi, each ...