Android Programming: The Big Nerd Ranch Guide, 4th Edition

Creating a UI Fragment

The steps to create a UI fragment are the same as those you followed to create an activity:

• compose a UI by defining widgets in a layout file

• create the class and set its view to be the layout that you defined

• wire up the widgets inflated from the layout in code

Defining CrimeFragment’s layout

CrimeFragment’s view will display the information contained within an instance of Crime.

First, define the strings that the user will see in res/values/strings.xml.

Listing 8.2  Adding strings (res/values/strings.xml)

<resources>
    <string name="app_name">CriminalIntent</string>
    <string name="crime_title_hint">Enter a title for the crime.</string>
    <string name="crime_title_label">Title</string> ...