ANT构建Android Proguard混淆

Question

任何人都可以与Android的样本/简单混淆ANT任务共享吗？如果我有完整的APK,我只需要通过*class hru Proguard然后准备*.dex来构建APK

Answer 1

我找到了解决方案:

1. 获取Proguard - 将proguard.jar复制到已知目录(比如MyProject/proguard)
2. 准备proguard.cfg-描述优化/混淆的内容和方式.这个过程在Proguard的手册中有详细描述
3. 准备好跟随ANT的build.xml(或像这样的人) - 对这个人来说非常棒

更新完整的build.xml

<?xml version="1.0" encoding="UTF-8"?> 
<project name="MyProject" default="zipalign" basedir=".">
    <property name="target" value="android-8"/>
    <!--property file="default.properties" /-->
    <property name="encoding" value="UTF-8"/>

    <!-- dirs -->
    <property name="sdk.dir" location="Location of Android SDK"/>
    <property name="proguard.dir" value="proguard" />
    <property name="src.dir" value="src"/>
    <property name="gen.dir" value="gen"/>
    <property name="res.dir" value="res"/>
    <property name="assets.dir" value="assets"/>
    <property name="libs.dir" value="libs"/>
    <property name="out.classes.unoptimized.dir" value="out"/>
    <property name="out.classes.optimized.dir" value="out/optimized"/>

    <!-- files -->
    <property name="manifest.file" value="AndroidManifest.xml"/>
    <property name="signed.apk" value="${ant.project.name}-signed.apk"/>
    <property name="unsigned.apk" value="${ant.project.name}-unsigned.apk"/>
    <property name="final.apk" value="${ant.project.name}.apk"/>
    <property name="android.jar" value="${sdk.dir}/tools/platforms/${target}/android.jar"/>
    <property name="unoptimized" value="unoptimized.jar" />
    <property name="optimized" value="optimized.jar" />
    <property name="proguard.config" value="${proguard.dir}/proguard.cfg"/>

    <!-- tools -->
    <property name="dx.jar" value="${sdk.dir}/platform-tools/lib/dx.jar"/>
    <property name="aapt" value="${sdk.dir}/platforms/${target}/tools/aapt.exe"/>
    <property name="zipalign" value="${sdk.dir}/tools/zipalign.exe"/>
    <property name="jarsign" value="jarsigner.exe location is here"/>
    <property name="keystore" value="Your key store is here"/>
    <property name="keyalias" value="Your key alias is here"/>


    <path id="android.antlibs">
        <pathelement path="${sdk.dir}/tools/lib/anttasks.jar" />
        <pathelement path="${sdk.dir}/tools/lib/sdklib.jar" />
        <pathelement path="${sdk.dir}/tools/lib/androidprefs.jar" />
        <pathelement path="${sdk.dir}/tools/lib/apkbuilder.jar" />
        <pathelement path="${sdk.dir}/tools/lib/jarutils.jar" />
    </path>

    <taskdef name="setup"
        classname="com.android.ant.SetupTask"
        classpathref="android.antlibs" />
    <setup import="false"/>

    <!--taskdef name="aaptexec"
            classname="com.android.ant.AaptExecLoopTask"
            classpathref="android.antlibs" /-->

    <target name="clean" description="Removes output files created by other targets.">
        <echo>Cleaning...</echo>
        <delete dir="${out.classes.unoptimized.dir}" verbose="true" />
        <delete dir="${out.classes.optimized.dir}" verbose="true" />
    </target>

    <target name="dirs">
        <echo>Creating output directories if needed...</echo>
        <mkdir dir="${out.classes.unoptimized.dir}" />
        <mkdir dir="${out.classes.optimized.dir}" />
    </target>

    <!-- Compiles this project's .java files into .class files. -->
    <target name="compile" depends="dirs"
            description="Compiles project's .java files into .class files">
        <echo>Compiling sources...</echo>
        <javac encoding="${encoding}" target="1.6" debug="true" extdirs=""
                destdir="${out.classes.unoptimized.dir}"
                bootclasspathref="android.target.classpath"
                includeantruntime="true">
            <src path="${src.dir}" />
            <src path="${gen.dir}" />
            <classpath>
                <fileset dir="${libs.dir}" includes="*.jar" />
            </classpath>
        </javac>
    </target>

    <target name="preobfuscate" depends="compile">
        <echo>Preparing to obfuscation...</echo>
    <jar destfile="${unoptimized}"
       basedir="${out.classes.unoptimized.dir}"
       includes="**/**"
       excludes="optimized/**"
       />
    </target>

    <!--  Obfuscation with ProGuard   -->
    <target name="optimize" unless="nooptimize" depends="preobfuscate">
        <echo>Proguard obfuscation...</echo>
        <java jar="${proguard.dir}/proguard.jar" fork="true" failonerror="true">
            <jvmarg value="-Dmaximum.inlined.code.length=16" />
            <arg value="@${proguard.dir}/proguard.cfg" />
            <arg value="-injars ${unoptimized}" />
            <arg value="-outjars ${optimized}" />
            <arg value="-libraryjars ${android.jar}" />
        </java>
        <unzip src="${optimized}" dest="${out.classes.optimized.dir}" />
        <!-- Delete optimized jar (now unzipped into bin directory)  -->
        <delete file="${optimized}"/>
        <delete file="${unoptimized}"/>
    </target>

    <target name="dex" description="Converting JVM bytecodes into Dalvik bytecodes" depends="optimize">
        <echo>Converting bytecodes to Dalvik VM bytecodes...</echo>
        <java jar="${dx.jar}" fork="true">
            <arg line="--dex --verbose --output=${out.classes.optimized.dir}/classes.dex ${out.classes.optimized.dir}"/>
        </java>
    </target>

    <target name="aapt" depends="dex" description="compile resources">
        <echo>Packing resources...</echo>
        <exec executable="${aapt}" logerror="true" osfamily="windows">
            <arg line="p
            -f
            -M ${manifest.file}
            -I ${android.jar}
            -S ${res.dir}
            -A ${assets.dir}
            -F ${out.classes.optimized.dir}/${unsigned.apk}
            -m -J ${gen.dir}"/>
        </exec>
    </target>

    <target name="sign" depends="aapt" description="sign apk">
        <input message="Please enter keystore password (store:${keystore}):"
                       addproperty="keystore.password" />
        <echo>Signing apk...</echo>
        <exec executable="${jarsign}" logerror="true" osfamily="windows">
            <arg line="-verbose
            -keystore ${keystore}
            -storepass ${keystore.password}
            -signedjar ${out.classes.optimized.dir}/${signed.apk}
            ${out.classes.optimized.dir}/${unsigned.apk} ${keyalias}"/>
        </exec>
    </target>

    <target name="zipalign" depends="sign" description="zip align">
        <echo>Aligning apk...</echo>
        <exec executable="${zipalign}" logerror="true" osfamily="windows">
            <arg line="-f
            -v
            4
            ${out.classes.optimized.dir}/${signed.apk}
            ${final.apk}"/>
        </exec>
    </target>

</project>

1. 必须在Java构建器之后和Android包构建器之前将此ANT任务添加到Eclipse的构建器(属性/构建器)任务中.

2. 按"Build All"(最好关闭Eclipse菜单中的Automatic Build check)

Answer 2

Android构建过程首先将Java源文件(.java)编译为Java类文件(.class),然后将这些类文件转换为Dalvik代码(classes.dex),最后将此Dalvik代码打包到APK文件中.

ProGuard读取和写入Java类文件,因此必须在编译步骤和转换步骤之间插入此管道.它不会读取或写入Dalvik代码本身,因此它无法在APK文件上运行.

ProGuard上的Android SDK文档讨论了如何在Ant-build for android-9中启用模糊处理步骤.简而言之,您必须在文件default.properties中添加一行"proguard.config = proguard.cfg",然后运行"ant release".