Android Programming: The Big Nerd Ranch Guide

Using a Layout Fragment

In CriminalIntent, you have been hosting fragments by adding them in the activity’s code. In HelloMoon, you are going to use a layout fragment instead. When you use a layout fragment, you specify the fragment class in a fragment element.

Open activity_hello_moon.xml and replace its contents with the fragment element shown in Listing 13.4.

Listing 13.4  Creating a layout fragment (activity_hello_moon.xml)

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/helloMoonFragment"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:name="com.bignerdranch.android.hellomoon.HelloMoonFragment">

</fragment>

There is only one change ...