Android 混淆代码详解及实例
为了防止自己的劳动成果被别人窃取，混淆代码能有效防止被反编译，下面来总结以下混淆代码的步骤：
1.大家也许都注意到新建一个工程会看到项目下边有这样proguard-project.txt一个文件，这个对混淆代码很重要，如果你不小心删掉了，没关系，从其他地方拷贝一个过来
2.最重要的就是在proguard-project.txt添加混淆的申明了：
a.把所有你的jar包都申明进来，例如：
-libraryjarslibs/apns_1.0.6.jar
-libraryjarslibs/armeabi/libBaiduMapSDK_v2_3_1.so
-libraryjarslibs/armeabi/liblocSDK4.so
-libraryjarslibs/baidumapapi_v2_3_1.jar
-libraryjarslibs/core.jar
-libraryjarslibs/gesture-imageview.jar
-libraryjarslibs/gson-2.0.jar
-libraryjarslibs/infogracesound.jar
-libraryjarslibs/locSDK_4.0.jar
-libraryjarslibs/ormlite-android-4.48.jar
-libraryjarslibs/ormlite-core-4.48.jar
-libraryjarslibs/universal-image-loader-1.9.0.jar
b.将你不需要混淆的部分申明进来，因为有些类经过混淆会导致程序编译不通过，如下：
-keeppublicclass*extendsandroid.app.Fragment
-keeppublicclass*extendsandroid.app.Activity
-keeppublicclass*extendsandroid.app.Application
-keeppublicclass*extendsandroid.app.Service
-keeppublicclass*extendsandroid.content.BroadcastReceiver
-keeppublicclass*extendsandroid.content.ContentProvider
-keeppublicclass*extendsandroid.app.backup.BackupAgentHelper
-keeppublicclass*extendsandroid.preference.Preference
-keeppublicclass*extendsandroid.support.v4.**
-keeppublicclasscom.android.vending.licensing.ILicensingService
--以上都是API里边的类，最好都要避免混淆
有些很特殊的，例如百度地图，你需要添加以下申明：
-keepclasscom.baidu.**{*;}
-keepclassvi.com.gdi.bgl.android.**{*;}
根据我的经验，一般model最好避免混淆（model无关紧要，不混淆也没多大关系）如：
-keepclasscom.bank.pingan.model.**{*;}
下面在贴上关于Umeng分享统计的避免混淆的申明
-dontwarnandroid.support.v4.**
-dontwarnorg.apache.commons.net.**
-dontwarncom.tencent.**
-keepclasseswithmembernamesclass*{
native<methods>;
}
-keepclasseswithmembernamesclass*{
public<init>(android.content.Context,android.util.AttributeSet);
}
-keepclasseswithmembernamesclass*{
public<init>(android.content.Context,android.util.AttributeSet,int);
}
-keepclassmembersenum*{
publicstatic**[]values();
publicstatic**valueOf(java.lang.String);
}
-keepclass*implementsandroid.os.Parcelable{
publicstaticfinalandroid.os.Parcelable$Creator*;
}
-keepclasseswithmembersclass*{
public<init>(android.content.Context);
}
-dontshrink
-dontoptimize
-dontwarncom.google.android.maps.**
-dontwarnandroid.webkit.WebView
-dontwarncom.umeng.**
-dontwarncom.tencent.weibo.sdk.**
-dontwarncom.facebook.**
-keepenumcom.facebook.**
-keepattributesExceptions,InnerClasses,Signature
-keepattributes*Annotation*
-keepattributesSourceFile,LineNumberTable
-keeppublicinterfacecom.facebook.**
-keeppublicinterfacecom.tencent.**
-keeppublicinterfacecom.umeng.socialize.**
-keeppublicinterfacecom.umeng.socialize.sensor.**
-keeppublicinterfacecom.umeng.scrshot.**
-keeppublicclasscom.umeng.socialize.*{*;}
-keeppublicclassjavax.**
-keeppublicclassandroid.webkit.**
-keepclasscom.facebook.**
-keepclasscom.umeng.scrshot.**
-keeppublicclasscom.tencent.**{*;}
-keepclasscom.umeng.socialize.sensor.**
-keepclasscom.tencent.mm.sdk.openapi.WXMediaMessage{*;}
-keepclasscom.tencent.mm.sdk.openapi.**implementscom.tencent.mm.sdk.openapi.WXMediaMessage$IMediaObject{*;}
-keepclassim.yixin.sdk.api.YXMessage{*;}
-keepclassim.yixin.sdk.api.**implementsim.yixin.sdk.api.YXMessage$YXMessageData{*;}
-keeppublicclass[your_pkg].R$*{
publicstaticfinalint*;
}
3.以上工作完成，混淆工作就完成了一大半了，最后需要做的就是在project.properties文件中加上你的混淆文件申明了，如下：
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
4.OK，最后一步，打签名包测试，如果有问题，仔细看下Log也许有得类不能混淆，那么你得加入到proguard-project.txt文件中
-------以上就是混淆代码的全过程了
最后贴上proguard-project.txt的全部代码：
#ToenableProGuardinyourproject,editproject.properties
#todefinetheproguard.configpropertyasdescribedinthatfile.
#
#AddprojectspecificProGuardruleshere.
#Bydefault,theflagsinthisfileareappendedtoflagsspecified
#in${sdk.dir}/tools/proguard/proguard-android.txt
#YoucanedittheincludepathandorderbychangingtheProGuard
#includepropertyinproject.properties.
#
#Formoredetails,see
#http://developer.android.com/guide/developing/tools/proguard.html
#Addanyprojectspecifickeepoptionshere:
#IfyourprojectusesWebViewwithJS,uncommentthefollowing
#andspecifythefullyqualifiedclassnametotheJavaScriptinterface
#class:
#-keepclassmembersclassfqcn.of.javascript.interface.for.webview{
#public*;
#}
-optimizationpasses5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations!code/simplification/arithmetic,!field/*,!class/merging/*
-keepattributes*Annotation*
-keepattributesSignature
-libraryjarslibs/apns_1.0.6.jar
-libraryjarslibs/armeabi/libBaiduMapSDK_v2_3_1.so
-libraryjarslibs/armeabi/liblocSDK4.so
-libraryjarslibs/baidumapapi_v2_3_1.jar
-libraryjarslibs/core.jar
-libraryjarslibs/gesture-imageview.jar
-libraryjarslibs/gson-2.0.jar
-libraryjarslibs/infogracesound.jar
-libraryjarslibs/locSDK_4.0.jar
-libraryjarslibs/ormlite-android-4.48.jar
-libraryjarslibs/ormlite-core-4.48.jar
-libraryjarslibs/universal-image-loader-1.9.0.jar
-keepclasscom.baidu.**{*;}
-keepclassvi.com.gdi.bgl.android.**{*;}
-keeppublicclass*extendsandroid.app.Fragment
-keeppublicclass*extendsandroid.app.Activity
-keeppublicclass*extendsandroid.app.Application
-keeppublicclass*extendsandroid.app.Service
-keeppublicclass*extendsandroid.content.BroadcastReceiver
-keeppublicclass*extendsandroid.content.ContentProvider
-keeppublicclass*extendsandroid.app.backup.BackupAgentHelper
-keeppublicclass*extendsandroid.preference.Preference
-keeppublicclass*extendsandroid.support.v4.**
-keeppublicclasscom.android.vending.licensing.ILicensingService
-keepclasscom.google.gson.stream.**{*;}
-keepclasscom.google.gson.examples.android.model.**{*;}
-keepclasscom.uuhelper.Application.**{*;}
-keepclassnet.sourceforge.zbar.**{*;}
-keepclasscom.google.android.gms.**{*;}
-keepclasscom.bank.pingan.model.**{*;}
-keeppublicclass*extendscom.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper
-keeppublicclass*extendscom.j256.ormlite.android.apptools.OpenHelperManager
-keepclasscom.android.vending.licensing.ILicensingService
-keepclassandroid.support.v4.**{*;}
-keepclassorg.apache.commons.net.**{*;}
-keepclasscom.tencent.**{*;}
-keepclasscom.umeng.**{*;}
-keepclasscom.umeng.analytics.**{*;}
-keepclasscom.umeng.common.**{*;}
-keepclasscom.umeng.newxp.**{*;}
-keepclasscom.j256.ormlite.**{*;}
-keepclasscom.j256.ormlite.android.**{*;}
-keepclasscom.j256.ormlite.field.**{*;}
-keepclasscom.j256.ormlite.stmt.**{*;}
-dontwarnandroid.support.v4.**
-dontwarnorg.apache.commons.net.**
-dontwarncom.tencent.**
-keepclasseswithmembernamesclass*{
native<methods>;
}
-keepclasseswithmembernamesclass*{
public<init>(android.content.Context,android.util.AttributeSet);
}
-keepclasseswithmembernamesclass*{
public<init>(android.content.Context,android.util.AttributeSet,int);
}
-keepclassmembersenum*{
publicstatic**[]values();
publicstatic**valueOf(java.lang.String);
}
-keepclass*implementsandroid.os.Parcelable{
publicstaticfinalandroid.os.Parcelable$Creator*;
}
-keepclasseswithmembersclass*{
public<init>(android.content.Context);
}
-dontshrink
-dontoptimize
-dontwarncom.google.android.maps.**
-dontwarnandroid.webkit.WebView
-dontwarncom.umeng.**
-dontwarncom.tencent.weibo.sdk.**
-dontwarncom.facebook.**
-keepenumcom.facebook.**
-keepattributesExceptions,InnerClasses,Signature
-keepattributes*Annotation*
-keepattributesSourceFile,LineNumberTable
-keeppublicinterfacecom.facebook.**
-keeppublicinterfacecom.tencent.**
-keeppublicinterfacecom.umeng.socialize.**
-keeppublicinterfacecom.umeng.socialize.sensor.**
-keeppublicinterfacecom.umeng.scrshot.**
-keeppublicclasscom.umeng.socialize.*{*;}
-keeppublicclassjavax.**
-keeppublicclassandroid.webkit.**
-keepclasscom.facebook.**
-keepclasscom.umeng.scrshot.**
-keeppublicclasscom.tencent.**{*;}
-keepclasscom.umeng.socialize.sensor.**
-keepclasscom.tencent.mm.sdk.openapi.WXMediaMessage{*;}
-keepclasscom.tencent.mm.sdk.openapi.**implementscom.tencent.mm.sdk.openapi.WXMediaMessage$IMediaObject{*;}
-keepclassim.yixin.sdk.api.YXMessage{*;}
-keepclassim.yixin.sdk.api.**implementsim.yixin.sdk.api.YXMessage$YXMessageData{*;}
-keeppublicclass[your_pkg].R$*{
publicstaticfinalint*;
}
2015-05-25更新
1.依赖工程的jar申明：
以下是邮件发送的实例
-libraryjars../KlowerBase/libs/mail-activation.jar
-libraryjars../KlowerBase/libs/mail-additionnal.jar
-libraryjars../KlowerBase/libs/mail.jar
2.解决邮件发送时报的以异常
-keepclassjavax.mail.**{*;}
-keepclasscom.sun.mail.**{*;}
-keepclassjavax.activation.**{*;}
-keepclassorg.apache.harmony.**{*;}
-keepclassjava.security.**{*;}
#解决：can'tfindreferencedclassjava.beans.Beans -dontwarnorg.apache.commons.collections.BeanMap -dontwarnjava.beans.** #解决：can'tfindreferencedclassjavax.security.sasl.Sasl -dontwarncom.sun.mail.imap.protocol.**
通过本文希望能帮助Android开发应用使用混淆代码的朋友，谢谢大家对本站的支持！