File list (Check if you may need any files):
4.CallDemo\.project
..........\.classpath
..........\AndroidManifest.xml
..........\proguard.cfg
..........\project.properties
..........\gen\com\potato\R.java
..........\src\com\potato\CallDemoActivity.java
..........\res\values\strings.xml
..........\...\layout\call.xml
..........\...\drawable-ldpi\ic_launcher.png
..........\...\.........mdpi\ic_launcher.png
..........\...\.........hdpi\ic_launcher.png
..........\bin\classes\com\potato\CallDemoActivity$ButtonListener.class
..........\...\.......\...\......\CallDemoActivity.class
..........\...\.......\...\......\CallDemoActivity$1.class
..........\...\.......\...\......\R.class
..........\...\.......\...\......\R$id.class
..........\...\.......\...\......\R$drawable.class
..........\...\.......\...\......\R$attr.class
..........\...\.......\...\......\R$string.class
..........\...\.......\...\......\R$layout.class
..........\...\.......\...\potato
..........\gen\com\potato
..........\src\com\potato
..........\bin\classes\com
..........\gen\com
..........\src\com
..........\res\values
..........\...\layout
..........\...\drawable-ldpi
..........\...\drawable-mdpi
..........\...\drawable-hdpi
..........\bin\res
..........\...\classes
..........\gen
..........\src
..........\assets
..........\res
..........\bin
4.CallDemo