In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text are shown as follows: "An Android package is created as the result of compiling an Android app and is an archive file with a .apk extension."

A block of code is set as follows:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <TextView
    android:text="Enter Search Criteria"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:id="@+id/searchCriteriaTextView" />
    <Button
      android:text="Search"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:id="@+id/searchButton" />
</LinearLayout>

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "Click through the first two welcome pages and the agreement page until you come to the Product selection page."