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)

<​?​x​m​l​ ​v​e​r​s​i​o​n​=​"​1​.​0​"​ ​e​n​c​o​d​i​n​g​=​"​u​t​f​-​8​"​?​>​
<​f​r​a​g​m​e​n​t​ ​x​m​l​n​s​:​a​n​d​r​o​i​d​=​"​h​t​t​p​:​/​/​s​c​h​e​m​a​s​.​a​n​d​r​o​i​d​.​c​o​m​/​a​p​k​/​r​e​s​/​a​n​d​r​o​i​d​"​
 ​ ​a​n​d​r​o​i​d​:​i​d​=​"​@​+​i​d​/​h​e​l​l​o​M​o​o​n​F​r​a​g​m​e​n​t​"​
 ​ ​a​n​d​r​o​i​d​:​l​a​y​o​u​t​_​w​i​d​t​h​=​"​m​a​t​c​h​_​p​a​r​e​n​t​" ...