[Android] My Tip; Android and ProGuard

Android and ProGuard
How to set ProGuard to ANT script for Android

STEP #1
Create a build.xml for ANT
c:/> ant update project --path c:/my_src
Create a build.property for keystore

STEP #2
EDIT build.xml

STEP #3
SETS ProGuard

STEP #4
BUILD

STEP #5
TEST, that's it!



//
// build.property
//
#application-package=com.test.testApp
#sdk-location=C:/android/android-sdk-windows/platforms/android-6

# KeyStore/Alias
key.store=__MY_KEYSTORE__.keystore
key.alias=__MY_KETSTORE_ALIAS__
key.store.password=__PASSWORD__
key.alias.password=__PASSWORD__

//
// build.xml
//
// --------------------------------
// 1. replace <setup />
// --------------------------------
by
    <!-- <setup /> -->
    <setup import="false" />

// --------------------------------
// 2. Adds this in the below <setup import="false" />
// --------------------------------
<!-- ProGuard -->
    <property name="proguard-dir" value="proguard"/>
    <property name="unoptimized" value="${proguard-dir}/unoptimized.jar"/>
    <property name="optimized" value="${proguard-dir}/optimized.jar"/>

    <target name="optimize" unless="nooptimize">
        <jar basedir="${out.classes.dir}" destfile="${unoptimized}"/>

        <java jar="${proguard-dir}/proguard.jar" fork="true" failonerror="true">
            <jvmarg value="-Dmaximum.inlined.code.length=16"/>
            <arg value="@${proguard-dir}/config.txt"/>     
            <arg value="-injars ${unoptimized}"/>
            <arg value="-outjars ${optimized}"/>
            <!--<arg value="-libraryjars ${android.jar}"/>-->
<!-- ADDS Library -->
            <arg value="-libraryjars ${android.jar}" />
            <!-- <arg value="-libraryjars libs/xxx.jar; libs/yyy.jar"/> -->
<!-- ADDS Library -->
        </java>    

        <!-- Delete source pre-optimized jar -->    
        <!--delete file="${unoptimized}"/-->

        <!-- Unzip target optimization jar to original output, and delete optimized.jar -->
        <delete dir="${out.classes.dir}"/>
        <mkdir dir="${out.classes.dir}"/>
        <unzip src="${proguard-dir}/optimized.jar" dest="${out.classes.dir}"/>

        <!-- Delete optimized jar (now unzipped into bin directory) -->
        <delete file="optimized.jar"/>
    </target>
<!-- ProGuard -->
...
<!-- 3. Copy rule and paste into build.xml; see below -->
...
</project>

// --------------------------------
// 3. Copy rule and paste into build.xml
// --------------------------------
OPEN a rule xml file
<SDK_PATH>/platforms/<target_platform>/templates/android_rules.xml

COPY from in the below <project name="android_rules" default="debug">
to in the above </project>
then, PASTE this in the below ProGuard

// --------------------------------
// 4. Finds <target name="-dex" depends="compile">
// --------------------------------
then, adds ", optimize" beside "compile"

<!-- ProGuard -->
    <target name="-dex" depends="compile, optimize">
<!-- ProGuard -->
...



//
// ProGuard
//
// --------------------------------
// 1. Get latest version
// --------------------------------
Download: http://sourceforge.net/project/showfiles.php?group_id=54750

// --------------------------------
// 2. Copy proguard.jar where into downloaded zip archive to my project directory
// --------------------------------
create a directory "proguard" into my project source directory
then, copy proguard/lib/proguard.jar to c:/my_src/proguard

// --------------------------------
// 3. Create a config.txt into "my_src_dir/proguard"
// --------------------------------
# --------------------------------------------------
# ProGuard:
#    http://proguard.sourceforge.net/
# ProGuard Download:
#    http://sourceforge.net/project/showfiles.php?group_id=54750
#
# config.txt Source:
#    http://www.androidengineer.com/2010/07/optimizing-obfuscating-and-shrinking.html
# --------------------------------------------------

-target 1.6
-optimizationpasses 2
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
#-verbose
#-dump class_files.txt
#-printseeds seeds.txt
#-printusage unused.txt
#-printmapping mapping.txt

# The -optimizations option disables some arithmetic simplifications that Dalvik 1.0 and 1.5 can't handle.
-optimizations !code/simplification/arithmetic

-keep public class * extends android.app.Activity
#-keep public class * extends android.app.Application
#-keep public class * extends android.app.Service
#-keep public class * extends android.content.BroadcastReceiver
#-keep public class * extends android.content.ContentProvider

#-keep public class * extends View {
#public <init>(android.content.Context);
#public <init>(android.content.Context, android.util.AttributeSet);
#public <init>(android.content.Context, android.util.AttributeSet, int);
#public void set*(...);
#}
# --------------------------------------------------

// --------------------------------
// build
// --------------------------------
c:/my_src> ant compile
c:/my_src> ant release


-----
Cheers,
June