Conventions

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

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "The Tools directory contains exactly what it says, that is, tools."

A block of code is set as follows:

<TextView
    android:id="@+id/text_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_centerVertical="true"
    android:text="@string/hello_world" />

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

<TextView
    android:id="@+id/name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_toRightOf="@+id/profile_pic"
    android:textSize="24sp" />

Any command-line input or output is written as follows:

bower install <package>
bower update <package>
bower search <containing>
bower list

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "You can then open the SDK manager from the menu via Tools | Android | SDK Manager or the matching icon on the main toolbar."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.