【转】Android 工程在4.0基础上混淆

Android现在对安全方面要求比较高了，我今天要做的对apk进行混淆，用所有的第三方工具都不能反编译，作者的知识产权得到保障了，是不是碉堡了。

 

一，首先说明我这是在4.0基础上进行的。

 

先看看project.properties 这个文件。

 

# This file is automatically generated by Android Tools.

# Do not modify this file -- YOUR CHANGES WILL BE ERASED!

#

# This file must be checked in Version Control Systems.

#

# To customize properties used by the Ant build system edit

# "ant.properties", and override values to adapt the script to your

# project structure.

#

# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):

# proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt

# Project target.

target=android-17

#proguard.config=proguard.cfg

proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt

 

先把proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt 的注释去掉。

 

其实混淆的难点就是项目引进了第三方包，如果没有引入第三方包，直接把上面的东西注释掉就可以混淆了，如果引入了第三方包就比较麻烦，请看下面。

 

再把第三方包进行添加，注意，一般第三方jar已经混淆过了，所以不能再次混淆。下面是我把第三方jar包过滤掉的操作。一般方在最下面。

 

这个文件proguard-project.txt

 

# To enable ProGuard in your project, edit project.properties

# to define the proguard.config property as described in that file.

#

# Add project specific ProGuard rules here.

# By default, the flags in this file are appended to flags specified

# in ${sdk.dir}/tools/proguard/proguard-android.txt

# You can edit the include path and order by changing the ProGuard

# include property in project.properties.

#

# For more details, see

# http://developer.android.com/guide/developing/tools/proguard.html

 

# Add any project specific keep options here:

 

#-keep class packagename.** {*;}

 

# If your project uses WebView with JS, uncomment the following

# and specify the fully qualified class name to the JavaScript interface

# class:

#-keepclassmembers class fqcn.of.javascript.interface.for.webview {

# public *;

#}

-keepclasseswithmembernames class * {

native <methods>;

}

 

-keepclasseswithmembers class * {

public <init>(android.content.Context, android.util.AttributeSet);

}

 

-keepclasseswithmembers class * {

public <init>(android.content.Context, android.util.AttributeSet, int);

}

 

-keepclassmembers class * extends android.app.Activity {

public void *(android.view.View);

}

 

-keepclassmembers enum * {

public static **[] values();

public static ** valueOf(java.lang.String);

}

 

-keep class * implements android.os.Parcelable {

public static final android.os.Parcelable$Creator *;

}

 

-dontwarn com.umeng.**

 

-dontwarn org.apache.commons.**

 

-dontwarn com.tencent.weibo.sdk.**

 

-keepattributes *Annotation*

 

-keep class com.umeng*.** {*; }

 

-keep public class [your_pkg].R$*{

public static final int *;

}

-keep class com.tencent.open.TDialog$*

 

-keep class com.tencent.open.TDialog$* {*;}

 

-keep class com.tencent.open.PKDialog

 

-keep class com.tencent.open.PKDialog {*;}

 

-keep class com.tencent.open.PKDialog$*

 

-keep class com.tencent.open.PKDialog$* {*;}

 

-keep class com.tencent.mm.sdk.openapi.WXMediaMessage {*;}

 

-keep class com.tencent.mm.sdk.openapi.** implements com.tencent.mm.sdk.openapi.WXMediaMessage$IMediaObject {*;}

 

 

 

-libraryjars /libs/achartengine-1.1.0.jar

-dontwarn achartengine.**

-keep class achartengine.** { *;}

 

-libraryjars /libs/android-support-v4.jar

-dontwarn android.support.v4.**

-keep class android.support.v4.** { *;}

 

-libraryjars /libs/jpush-sdk-release1.4.0.jar

-dontwarn jpush.sdk.release.**

-keep class jpush.sdk.release.** { *;}

 

 

-libraryjars /libs/umeng_sdk.jar

-dontwarn umeng.sdk.**

-keep class umeng.sdk.** { *;}

 

-libraryjars /libs/umeng_social_sdk.jar

-dontwarn umeng.social.sdk.**

-keep class umeng.social.sdk.** { *;}

 

-libraryjars /libs/universal-image-loader.jar

-dontwarn universal.image.loader.**

-keep class universal.image.loader.** { *;}

 

-libraryjars /libs/ShareSDK-SinaWeibo-2.1.2.jar

-dontwarn cn.sharesdk.sina.weibo.**

-keep class cn.sharesdk.sina.weibo.** { *;}

 

-libraryjars /libs/ShareSDK-TencentWeibo-2.1.2.jar

-dontwarn cn.sharesdk.tencent.weibo.**

-keep class cn.sharesdk.tencent.weibo.** { *;}

 

-libraryjars /libs/ShareSDK-Wechat-Moments-2.1.2.jar

-dontwarn cn.sharesdk.wechat.moments.**

-keep class cn.sharesdk.wechat.moments.** { *;}

 

这些对应上面的jar包，防止再次混淆。

 

 

 

-braryjars libs/nineoldandroids-2.4.0.jar----指明lib包的在工程中的路径

而-dontwarn com.xx.bbb.**和-keep class com.xx.bbb.** { ;}

这两个参数用来保持第三方库中的类而不乱，将-dontwarn和-keep 结合使用，意思是保持com.xx.bbb.*这个包里面的所有类和所有方法而不混淆，接着还叫ProGuard不要警告找不到com.xx.bbb.**这个包里面的类的相关引用。

 

 

 

-libraryjars ..\第三方库的工程名

-dontwarn  包名.**

-keep class 包名.** { *;}

 

 

最后打包签名，成功。