5步搞定android混淆

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。这里边的内容是我们主要需要补充的部分，大致分为4个小部分，我们接下来的步骤主要是补充这4个部分的东西。
§  基本不用动区域。顾名思义，基本不用动。这块的内容我已经写好了，除非有特殊的需求，基本不用改动。。。请叫我雷锋。。。。。
#-------------------------------------------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 -keepattributesSourceFile,LineNumberTable#----------------------------------------------------------------------------#---------------------------------默认保留区----------------------------------keep
public class * extends android.app.Activity -keep public class * extendsandroid.app.Appliction -keep public class * extends android.app.Service -keeppublic class * extends android.content.BroadcastReceiver -keep public class *extends android.content.ContentProvider
-keep public class * extendsandroid.app.backup.BackupAgentHelper -keep public class * extendsandroid.preference.Preference -keep public class * extends android.view.View-keep public class com.android.vending.licensing.ILicensingService -keep classandroid.support.**
{*;} -keepclasseswithmembernames class * {   native <methods>; } -keepclassmembers class * extendsandroid.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*();    voidset*(***);    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 staticfinal android.os.Parcelable$Creator
*; } -keepclassmembers class * implementsjava.io.Serializable {    static final long serialVersionUID;   private static final java.io.ObjectStreamField[] serialPersistentFields;   private void writeObject(java.io.ObjectOutputStream);   private void readObject(java.io.ObjectInputStream);
  java.lang.Object writeReplace();    java.lang.ObjectreadResolve(); } -keep class **.R$* { *; } -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 classcom.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 enumorg.greenrobot.eventbus.ThreadMode { *; } -keepclassmembers class * extendsorg.greenrobot.eventbus.util.ThrowableFailureEvent {   <init>(java.lang.Throwable); } #glide -keep public class *implements com.bumptech.glide.module.GlideModule-keep
public enumcom.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 -libraryjarslog4j-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
-keepclasseswithmembersclass 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）
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 enumorg.greenrobot.eventbus.ThreadMode { *; } -keepclassmembers class * extendsorg.greenrobot.eventbus.util.ThrowableFailureEvent {   <init>(java.lang.Throwable);
} #glide -keep public class *implements com.bumptech.glide.module.GlideModule-keep public enumcom.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {  **[]$VALUES;  public *; } #log4j -libraryjars log4j-1.2.17.jar -dontwarnorg.apache.log4j.** -keep
class  org.apache.log4j.** { *;}#-------------------------------------------------------------------------#---------------------------------3.与js互相调用的类------------------------
-keepclasseswithmembers classcom.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 -keepattributesSourceFile,LineNumberTable#----------------------------------------------------------------------------#---------------------------------默认保留区----------------------------------keep
public class * extends android.app.Activity -keep public class * extendsandroid.app.Appliction -keep public class * extends android.app.Service -keeppublic class * extends android.content.BroadcastReceiver -keep public class *extends android.content.ContentProvider
-keep public class * extendsandroid.app.backup.BackupAgentHelper -keep public class * extendsandroid.preference.Preference -keep public class * extends android.view.View-keep public class com.android.vending.licensing.ILicensingService -keep classandroid.support.**
{*;} -keepclasseswithmembernames class * {   native <methods>; } -keepclassmembers class * extendsandroid.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*();    voidset*(***);    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 staticfinal android.os.Parcelable$Creator
*; } -keepclassmembers class * implementsjava.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.ObjectreadResolve(); } -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 {      
        minifyEnabledtrue       proguardFilesgetDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'   }
 
 
今天的干货就到这里了！