android混淆(Obfuscate)

《Obfuscate an Android application》 这篇文章的作者介绍了如何在Android平台下混淆程序，并且给出ant的build.xml文件，经过自己的测试，发现里面少了一些target项，在Eclips会出错，后来结合zxing开源项目的build.xml文件，终于混淆成功，项目包减少了不少。

 

这里主要提一些注意事项，不提供源代码

1、创建build.xml文件

 直接在项目的目录下新建一个名为build.xml的文件

 

 

2、创建Ant打包方式

项目 –> properties –> builders –> new –> ant builder

 

 

接着Buildfile选择项目build.xml文件，Base Dir选择项目目录就行了，记得勾上你的builders

 

 

 

3、build.xml文件修改

zxing这个文件没有加入混淆包选项，所以得做一些修改，如下示例

 

<property name="proguard-home" value="D:\\Program Files\\proguard4.2\\lib\\"/>

	<target name="optimize" depends="compile">
		<jar basedir="${outdir-classes}" destfile="temp.jar"/>
		<java jar="${proguard-home}/proguard.jar" fork="true" failonerror="true">
			<jvmarg value="-Dmaximum.inlined.code.length=32"/>
			<arg value="-injars temp.jar"/>
			<arg value="-outjars optimized.jar"/>
			<arg value="-libraryjars ${android-jar}"/>
			<!-- <arg value="-libraryjars ${library-jar}/some_lib_used.jar"/> -->
			<arg value="-dontpreverify"/>
			<arg value="-dontoptimize"/>
			<arg value="-dontusemixedcaseclassnames"/>
			<arg value="-repackageclasses ''"/>
			<arg value="-allowaccessmodification"/>
			<arg value="-keep public class com.iwidsets.WidsetsActivity"/>
			<!-- <arg value="-keep public class com.just2me.obfapp.receiver.*"/> -->
			<arg value="-optimizationpasses 7"/>
			<arg value="-verbose"/>
			<arg value="-dontskipnonpubliclibraryclasses"/>
			<arg value="-dontskipnonpubliclibraryclassmembers"/>
		</java>
		<delete file="temp.jar"/>
		<delete dir="${outdir-classes}"/>
		<mkdir dir="${outdir-classes}"/>
		<unzip src="optimized.jar" dest="${outdir-classes}"/>
		<delete file="optimized.jar"/>
	</target>

 

注意：keep public class com.iwidsets.WidsetsActivity需改成你的主Activity

 

 并修改target dex

 

	<!-- Convert this project's .class files into .dex files. -->
	<target name="dex" depends="compile,optimize">
		<echo>Converting compiled files and external libraries into ${out-folder}/${dex-file}...</echo>
		<apply executable="${dx}" failonerror="true" parallel="true">
			<arg value="--dex" />
			<arg value="--output=${intermediate-dex-location}" />
			<arg path="${outdir-classes-location}" />
			<fileset dir="${external-libs-folder}" includes="*.jar"/>
		</apply>
	</target>

 

评论

9 楼 s123451 2013-05-30  

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引用

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8 楼 fonter 2011-08-23  

caitiancai 写道

BUILD FAILED
D:\personal\eclipse\S2\build.xml:188: src 'D:\personal\eclipse\core\core.jar' doesn't exist.

请问这个怎么解决呀？？？？

现在的android sdk已支持混淆了，直接通过eclipse就可以混了，不用再写xml了..你可以试试...   http://fonter.iteye.com/blog/942714

7 楼 caitiancai 2011-08-23  

BUILD FAILED
D:\personal\eclipse\S2\build.xml:188: src 'D:\personal\eclipse\core\core.jar' doesn't exist.

请问这个怎么解决呀？？？？

6 楼 songfantasy 2011-04-28  

sdk8以后，google已经给提供很方便的混淆方法。

不过，楼主不错。总结的很好

5 楼 sunburst 2010-10-02  

fonter 写道

No resource found that matches the given name (at 'icon' with value '@drawable/icon').

sunburst 写道

非常感谢你的回答，现在出现了新问题，当我开始build的时候，显示下面的错误，应该如何解决？


resource-src:
     [echo] Generating R.java / Manifest.java from the resources...
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:28: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').

BUILD FAILED

No resource found that matches the given name (at 'icon' with value '@drawable/icon').
在drawable没有icon吧，“No resource found that matches the given name ”这个

实际是有的，不然project本身也会报错，现在情况是不用ant是正常编译的，说明资源指向是正确的

4 楼 fonter 2010-10-01  

No resource found that matches the given name (at 'icon' with value '@drawable/icon').

sunburst 写道

非常感谢你的回答，现在出现了新问题，当我开始build的时候，显示下面的错误，应该如何解决？


resource-src:
     [echo] Generating R.java / Manifest.java from the resources...
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:28: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').

BUILD FAILED

No resource found that matches the given name (at 'icon' with value '@drawable/icon').
在drawable没有icon吧，“No resource found that matches the given name ”这个

3 楼 sunburst 2010-09-30  

非常感谢你的回答，现在出现了新问题，当我开始build的时候，显示下面的错误，应该如何解决？


resource-src:
     [echo] Generating R.java / Manifest.java from the resources...
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'icon' with value '@drawable/icon').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:26: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').
     [exec] E:\Android App\sms\MyPrivateMessages\AndroidManifest.xml:28: ERROR Error: No resource found that matches the given name (at 'label' with value '@string/app_name').

BUILD FAILED

2 楼 fonter 2010-09-28  

sunburst 写道

注意：keep public class com.iwidsets.WidsetsActivity需改成你的主Activity

这里只用添加主Activity？其他的不用添加？那我引用的jar包是否需要添加？

看你需不需要啊。。。比如重要的代码不想让人知道，就混淆。包的话也是这样啊。。。。

1 楼 sunburst 2010-09-28  

注意：keep public class com.iwidsets.WidsetsActivity需改成你的主Activity

这里只用添加主Activity？其他的不用添加？那我引用的jar包是否需要添加？