custom_rules.xml

<!-- 
Customize the build process: create an assets/build.properties file that can
be checked at runtime for build options and give the APK a more verbose
name.
-->
<project name="Bundle Helper for enabling app store specific features">
  
    
  <target name="-pre-build">
    <!-- Extract version information from AndroidManifest.xml -->
    <xpath input="${manifest.abs.file}" expression="/manifest/@android:versionName" output="dist.version.name" default="unknown"/> 
    <xpath input="${manifest.abs.file}" expression="/manifest/@android:versionCode" output="dist.version.code" default="-1"/> 
  </target>
  
  <target name="-post-build">
    <copy 
      overwrite="true" 
      file="${out.final.file}" 
      tofile="${out.absolute.dir}/${ant.project.name}-${build.target}-${dist.version.name}.apk" />
  </target>
</project>