build.xml

<?xml version="1.0"?>
<project name="ActiveAndroid" default="dist" basedir=".">

	<property name="dist.dir"  value="dist" />
    <property name="src.dir"   value="src" />
	<property name="build.dir" value="bin" />
	<property name="lib.dir"   value="libs"/>
	
	<target name="dist" depends="clean, package" />

	<target name="clean">
		<delete dir="${build.dir}" />
		<delete dir="${dist.dir}" />
	</target>

	<target name="init">
		<mkdir dir="${build.dir}"/>
		<mkdir dir="${dist.dir}" />
	</target>

	<path id="classpath">
        <fileset dir="${lib.dir}" includes="**/*.jar"/>
    </path>
    
	<target name="compile">
    	<javac srcdir="${src.dir}" destdir="${build.dir}" source="1.5" target="1.5" classpathref="classpath" debug="off" />
	</target>
		
	<target name="package" depends="init, compile">
		<jar destfile="${dist.dir}/ActiveAndroid.jar" basedir="${build.dir}"/>
	</target>
</project>