File list (Check if you may need any files):
ex07_1_button
.............\.classpath
.............\.project
.............\AndroidManifest.xml
.............\assets
.............\bin
.............\...\classes.dex
.............\...\com
.............\...\...\ex06
.............\...\...\....\button
.............\...\...\....\......\ActivityButton$1.class
.............\...\...\....\......\ActivityButton$2.class
.............\...\...\....\......\ActivityButton.class
.............\...\...\....\......\R$attr.class
.............\...\...\....\......\R$drawable.class
.............\...\...\....\......\R$id.class
.............\...\...\....\......\R$layout.class
.............\...\...\....\......\R$string.class
.............\...\...\....\......\R.class
.............\...\ex07_1_button.apk
.............\...\R$attr.class
.............\...\R$drawable.class
.............\...\R$id.class
.............\...\R$layout.class
.............\...\R$string.class
.............\...\R.class
.............\...\resources.ap_
.............\default.properties
.............\gen
.............\...\com
.............\...\...\ex06
.............\...\...\....\button
.............\...\...\....\......\R.java
.............\...\R.java
.............\readme.txt
.............\res
.............\...\drawable
.............\...\........\icon.png
.............\...\layout
.............\...\......\main.xml
.............\...\values
.............\...\......\strings.xml
.............\src
.............\...\com
.............\...\...\ex06
.............\...\...\....\button
.............\...\...\....\......\ActivityButton.java