compile with hidden classes on android

in Android SDK (not AOSP)

sometimes you need to use some 'hidden' classes ( with @hide annotations)

here is how I do it with ant build

first you need to get the whole Android framework jars

it's located in 

mydroid/out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar

1:

copy it to your project/lib/   

(not libs/,  because ant build will include the jars in libs, but here we just need to use it for symbol resolution)

2: 

customize your ant build.xml

copy the templates from 

• for cupcake donut
• platforms/$API_LEVEL/templates/android_rules.xml
• for eclair froyo
• platforms/$API_LEVEL/ant/ant_rules_r2.xml
• gingerbread 
• tools/ant/main_rules.xml

3.

  add a path before the compile task <compile>

 <path id="boot.class.ref">

        <fileset dir="./lib">

            <include name="*.jar" />

        </fileset>

    </path>

then

add a line after <javac>

<compilerarg value="-Xbootclasspath/p:${toString:boot.class.ref}"/$gt;

here I try to update the boot class path with -Xbootclasspath/p option

see http://download.oracle.com/javase/6/docs/technotes/tools/solaris/javac.html