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5分钟搞定android混淆

2016-04-27  本文已影响60023人  ed407c8602e0

前言

混淆是上线前挺重要的一个环节。android使用的ProGuard,可以起到压缩,混淆,预检,优化的作用。但是很多童鞋还没有掌握正确的写混淆文件的姿势。我希望搞个模板化的东西,让大家轻松搞定混淆。那么,开始写一个项目的混淆吧。。。我是不是很直接。。。。

五步搞定

1

打开项目中的proguard-rules.pro,将下面的代码复制进去。我的思路是将混淆分为2个主要部分

#-------------------------------------------定制化区域----------------------------------------------
#---------------------------------1.实体类---------------------------------



#-------------------------------------------------------------------------

#---------------------------------2.第三方包-------------------------------



#-------------------------------------------------------------------------

#---------------------------------3.与js互相调用的类------------------------



#-------------------------------------------------------------------------

#---------------------------------4.反射相关的类和方法-----------------------



#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

#-------------------------------------------基本不用动区域--------------------------------------------
#---------------------------------基本指令区----------------------------------
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-printmapping proguardMapping.txt
-optimizations !code/simplification/cast,!field/*,!class/merging/*
-keepattributes *Annotation*,InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
#----------------------------------------------------------------------------

#---------------------------------默认保留区---------------------------------
-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 android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class * extends android.view.View
-keep public class com.android.vending.licensing.ILicensingService
-keep class android.support.** {*;}

-keepclasseswithmembernames class * {
    native <methods>;
}
-keepclassmembers class * extends android.app.Activity{
    public void *(android.view.View);
}
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keep public class * extends android.view.View{
    *** get*();
    void set*(***);
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}
-keep class **.R$* {
 *;
}
-keepclassmembers class * {
    void *(**On*Event);
}
#----------------------------------------------------------------------------

#---------------------------------webview------------------------------------
-keepclassmembers class fqcn.of.javascript.interface.for.Webview {
   public *;
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, java.lang.String, android.graphics.Bitmap);
    public boolean *(android.webkit.WebView, java.lang.String);
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, jav.lang.String);
}
#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

2

理解完战略级思想后,我们开始第一部分补充-实体类。实体类由于涉及到与服务端的交互,各种gson的交互如此等等,是要保留的。将你项目中实体类都拎出来,用以下语法进行保留。

-keep class 你的实体类所在的包.** { *; }

如我的项目下类User的完整路径为:com.demo.login.bean.User, 那我的混淆如下

#---------------------------------1.实体类---------------------------------

-keep class com.demo.login.bean.** { *; }

#-------------------------------------------------------------------------

当然你的实体类肯定不止这一个,请用上边的方式一一添加,如果你的实体类都在一个包下,那你就幸福了。

3

第2部分是第三方包。打开你的build.gradle文件,查看你用了哪些第三方的包。

dependencies {
    compile 'com.github.bumptech.glide:glide:3.7.0'
    compile 'org.greenrobot:eventbus:3.0.0'
}

我这里用了glide,eventbus。我去他们的官网把已经写好的混淆copy下来。

#---------------------------------2.第三方包-------------------------------

#eventBus
-keepattributes *Annotation*
-keepclassmembers class ** {
    @org.greenrobot.eventbus.Subscribe <methods>;
}
-keep enum org.greenrobot.eventbus.ThreadMode { *; }
-keepclassmembers class * extends org.greenrobot.eventbus.util.ThrowableFailureEvent {
    <init>(java.lang.Throwable);
}

#glide
-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
  **[] $VALUES;
  public *;
}

#-------------------------------------------------------------------------

一般官网都是有混淆的,没有的话就google,也没有的话自己按照上面的写法自己写,还不会的话。。。。。只能换个包。。。。。如果你是直接包含的jar包的话,你这样写

#---------------------------------2.第三方包-------------------------------

#log4j
-libraryjars log4j-1.2.17.jar
-dontwarn org.apache.log4j.**
-keep class  org.apache.log4j.** { *;}

#-------------------------------------------------------------------------

大致意思就是不混淆,不报warn。如果gradle报错的话,可以考虑注释掉-libraryjars log4j-1.2.17.jar这句。

4

第三部分与js互调的类,工程中没有直接跳过。一般你可以这样写

-keep class 你的类所在的包.** { *; }

如果是内部类的话,你可以这样

-keepclasseswithmembers class 你的类所在的包.父类$子类 { <methods>; }

例如

-keepclasseswithmembers class com.demo.login.bean.ui.MainActivity$JSInterface { 
      <methods>; 
}

5

第四部分与反射有关的类,工程中没有直接跳过。类的话直接这样

-keep class 你的类所在的包.** { *; }

熟练后不用五分钟就能搞定。大家可以把自己写完混淆所用的时间写在评论里(0,0)

深入了解

先逐条介绍下基本指令区指令的含义

-optimizationpasses 5

代码混淆的压缩比例,值在0-7之间

-dontusemixedcaseclassnames

混淆后类名都为小写

-dontskipnonpubliclibraryclasses

指定不去忽略非公共的库的类

-dontskipnonpubliclibraryclassmembers

指定不去忽略非公共的库的类的成员

-dontpreverify

不做预校验的操作

-verbose
-printmapping proguardMapping.txt

生成原类名和混淆后的类名的映射文件

-optimizations !code/simplification/cast,!field/*,!class/merging/*

指定混淆是采用的算法

-keepattributes *Annotation*,InnerClasses

不混淆Annotation

-keepattributes Signature

不混淆泛型

-keepattributes SourceFile,LineNumberTable

抛出异常时保留代码行号

基本指令区基本介绍完了,说下2条用的最多的指令

-keep class XXXX

保留类名不变,也就是类名不混淆,而类中的成员名不保证。当然也可以是继承XXX类的所有类名不混淆,具体代码不贴了,重在理解。

-keepclasseswithmembers class XXXX

保留类名和成员名。当然也可以是类中特定方法,代码不贴了,理由同上。

附:完整的混淆

#-------------------------------------------定制化区域----------------------------------------------
#---------------------------------1.实体类---------------------------------

-keep class com.demo.login.bean.** { *; }
-keep class com.demo.main.bean.** { *; }

#-------------------------------------------------------------------------

#---------------------------------2.第三方包-------------------------------

#eventBus
-keepattributes *Annotation*
-keepclassmembers class ** {
    @org.greenrobot.eventbus.Subscribe <methods>;
}
-keep enum org.greenrobot.eventbus.ThreadMode { *; }
-keepclassmembers class * extends org.greenrobot.eventbus.util.ThrowableFailureEvent {
    <init>(java.lang.Throwable);
}

#glide
-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
  **[] $VALUES;
  public *;
}

#log4j
-libraryjars log4j-1.2.17.jar
-dontwarn org.apache.log4j.**
-keep class  org.apache.log4j.** { *;}

#-------------------------------------------------------------------------

#---------------------------------3.与js互相调用的类------------------------

-keepclasseswithmembers class com.demo.login.bean.ui.MainActivity$JSInterface { 
      <methods>; 
}

#-------------------------------------------------------------------------

#---------------------------------4.反射相关的类和方法-----------------------

#TODO 我的工程里没有。。。

#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

#-------------------------------------------基本不用动区域--------------------------------------------
#---------------------------------基本指令区----------------------------------
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-printmapping proguardMapping.txt
-optimizations !code/simplification/cast,!field/*,!class/merging/*
-keepattributes *Annotation*,InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
#----------------------------------------------------------------------------

#---------------------------------默认保留区---------------------------------
-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 android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class * extends android.view.View
-keep public class com.android.vending.licensing.ILicensingService
-keep class android.support.** {*;}

-keepclasseswithmembernames class * {
    native <methods>;
}
-keepclassmembers class * extends android.app.Activity{
    public void *(android.view.View);
}
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keep public class * extends android.view.View{
    *** get*();
    void set*(***);
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}
-keep class **.R$* {
 *;
}
-keepclassmembers class * {
    void *(**On*Event);
}
#----------------------------------------------------------------------------

#---------------------------------webview------------------------------------
-keepclassmembers class fqcn.of.javascript.interface.for.Webview {
   public *;
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, java.lang.String, android.graphics.Bitmap);
    public boolean *(android.webkit.WebView, java.lang.String);
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, jav.lang.String);
}
#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

后言

将build.gradle中minifyEnabled设置为true打个包试试吧

   release {
       minifyEnabled true
       proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
   }

其他需求可以留言讨论。如果觉得有用请帮忙戳喜欢。。

更新日志

1.模板中的规则有部分与默认的proguard-android.txt文件中的重复了,可以精简一下

#-------------------------------------------定制化区域----------------------------------------------
#---------------------------------1.实体类---------------------------------



#-------------------------------------------------------------------------

#---------------------------------2.第三方包-------------------------------



#-------------------------------------------------------------------------

#---------------------------------3.与js互相调用的类------------------------



#-------------------------------------------------------------------------

#---------------------------------4.反射相关的类和方法-----------------------



#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

#-------------------------------------------基本不用动区域--------------------------------------------
#---------------------------------基本指令区----------------------------------
-optimizationpasses 5
-dontskipnonpubliclibraryclassmembers
-printmapping proguardMapping.txt
-optimizations !code/simplification/cast,!field/*,!class/merging/*
-keepattributes *Annotation*,InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
#----------------------------------------------------------------------------

#---------------------------------默认保留区---------------------------------
-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 android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class * extends android.view.View
-keep public class com.android.vending.licensing.ILicensingService
-keep class android.support.** {*;}

-keep public class * extends android.view.View{
    *** get*();
    void set*(***);
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}
-keep class **.R$* {
 *;
}
-keepclassmembers class * {
    void *(**On*Event);
}
#----------------------------------------------------------------------------

#---------------------------------webview------------------------------------
-keepclassmembers class fqcn.of.javascript.interface.for.Webview {
   public *;
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, java.lang.String, android.graphics.Bitmap);
    public boolean *(android.webkit.WebView, java.lang.String);
}
-keepclassmembers class * extends android.webkit.WebViewClient {
    public void *(android.webkit.WebView, jav.lang.String);
}
#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------

感谢

包老师的《App研发录》

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