Android 常用代码混淆

代码混淆主要是为了防止反编译，如何反编译？比较火的反编译工具github地址jadx，也可直接下载jadx-gui。这里可以看看我通过反编译工具查看apk混淆前和混淆后的两张图片

 

不难看出ClubActivity里面的成员变量和方法都变成了单个英文字母，从而降低了代码的可读性，提高安全性！

开始混淆：

Gradle配置

   buildTypes {
        debug {
            minifyEnabled false//是否混淆
            zipAlignEnabled true // Zipalign优化
//            shrinkResources true //移除无用的resource文件
            signingConfig signingConfigs.debug //签名
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'  // 加载默认混淆配置文件
        }

        release {
            minifyEnabled true //是否开启混淆
            zipAlignEnabled true // Zipalign优化
//            shrinkResources true //移除无用的resource文件
            signingConfig signingConfigs.debug //签名
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'  // 加载默认混淆配置文件
        }
    }

App下的proguard文件配置

网上基本配置

#-------------------------------------------基本不用动区域--------------------------------------------
#---------------------------------基本指令区----------------------------------
-optimizationpasses 5       # 指定代码的压缩级别
-dontusemixedcaseclassnames     # 是否使用大小写混合
-dontskipnonpubliclibraryclasses        # 指定不去忽略非公共的库类
-dontskipnonpubliclibraryclassmembers       # 指定不去忽略包可见的库类的成员
-dontpreverify      # 混淆时是否做预校验
-verbose        # 混淆时是否记录日志
-printmapping proguardMapping.txt
-optimizations !code/simplification/cast,!field/*,!class/merging/*      # 混淆时所采用的算法
-keepattributes *Annotation*,InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
#----------------------------------------------------------------------------
-ignorewarnings     # 是否忽略检测，（是）

#如果有引用v4包可以添加下面这行
-keep class android.support.v4.** { *; }
-keep public class * extends android.support.v4.**
-keep public class * extends android.app.Fragment

-dontwarn android.support.v7.**
-keep class android.support.v7.internal.** { *; }
-keep interface android.support.v7.internal.** { *; }
-keep class android.support.v7.** { *; }

-dontwarn android.support.design.**
-keep class android.support.design.** { *; }
-keep interface android.support.design.** { *; }
-keep public class android.support.design.R$* { *; }

-keepclasseswithmembernames class * {
    native ;
}
-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 (android.content.Context);
    public (android.content.Context, android.util.AttributeSet);
    public (android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembers class * {
    public (android.content.Context);
    public (android.content.Context, android.util.AttributeSet);
    public (android.content.Context, android.util.AttributeSet, int);
}
#避免Parcelable混淆
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}
#避免Serializable接口的子类中指定的某些成员变量和方法混淆
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}
#表示不混淆R文件中的所有静态字段
-keep class **.R$* {
    public static ;
}
-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);
}

三方引用配置（视情况而定，使用了什么三方，配置对应的混淆）

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

#-------------------------------Arouter---------------------------------
-keep public class com.alibaba.android.arouter.routes.**{*;}
-keep public class com.alibaba.android.arouter.facade.**{*;}
-keep class * implements com.alibaba.android.arouter.facade.template.ISyringe{*;}

# If you use the byType method to obtain Service, add the following rules to protect the interface:
-keep interface * implements com.alibaba.android.arouter.facade.template.IProvider

# If single-type injection is used, that is, no interface is defined to implement IProvider, the following rules need to be added to protect the implementation
# -keep class * implements com.alibaba.android.arouter.facade.template.IProvider

#------------------------------EventBus3.0-----------------------------
-keepattributes *Annotation*
-keepclassmembers class ** {
    @org.greenrobot.eventbus.Subscribe ;
}
-keep enum org.greenrobot.eventbus.ThreadMode { *; }

# Only required if you use AsyncExecutor
-keepclassmembers class * extends org.greenrobot.eventbus.util.ThrowableFailureEvent {
    (java.lang.Throwable);
}

#----------------------------gson---------------------------------------
-keep class com.google.gson.** {*;}
-keep class com.google.**{*;}
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }
-keep class com.google.gson.examples.android.model.** { *; }

#---------------------------ButterKnife----------------------------------
-keep class butterknife.** { *; }
-dontwarn butterknife.internal.**
-keep class **$$ViewBinder { *; }
-keepclasseswithmembernames class * {
    @butterknife.* ;
}
-keepclasseswithmembernames class * {
    @butterknife.* ;
}

#---------------------------友盟分享-------------------------------------
-dontshrink
-dontoptimize
-dontwarn com.google.android.maps.**
-dontwarn android.webkit.WebView
-dontwarn com.umeng.**
-dontwarn com.tencent.weibo.sdk.**
-dontwarn com.facebook.**
-keep public class javax.**
-keep public class android.webkit.**
-dontwarn android.support.v4.**
-keep enum com.facebook.**
-keepattributes Exceptions,InnerClasses,Signature
-keepattributes *Annotation*
-keepattributes SourceFile,LineNumberTable

-keep public interface com.facebook.**
-keep public interface com.tencent.**
-keep public interface com.umeng.socialize.**
-keep public interface com.umeng.socialize.sensor.**
-keep public interface com.umeng.scrshot.**

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


-keep class com.facebook.**
-keep class com.facebook.** { *; }
-keep class com.umeng.scrshot.**
-keep public class com.tencent.** {*;}
-keep class com.umeng.socialize.sensor.**
-keep class com.umeng.socialize.handler.**
-keep class com.umeng.socialize.handler.*
-keep class com.umeng.weixin.handler.**
-keep class com.umeng.weixin.handler.*
-keep class com.umeng.qq.handler.**
-keep class com.umeng.qq.handler.*
-keep class UMMoreHandler{*;}
-keep class com.tencent.mm.sdk.modelmsg.WXMediaMessage {*;}
-keep class com.tencent.mm.sdk.modelmsg.** implements com.tencent.mm.sdk.modelmsg.WXMediaMessage$IMediaObject {*;}
-keep class im.yixin.sdk.api.YXMessage {*;}
-keep class im.yixin.sdk.api.** implements im.yixin.sdk.api.YXMessage$YXMessageData{*;}
-keep class com.tencent.mm.sdk.** {
   *;
}
-keep class com.tencent.mm.opensdk.** {
   *;
}
-keep class com.tencent.wxop.** {
   *;
}
-keep class com.tencent.mm.sdk.** {
   *;
}

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

-keep class com.tencent.** {*;}
-dontwarn com.tencent.**
-keep class com.kakao.** {*;}
-dontwarn com.kakao.**
-keep public class com.umeng.com.umeng.soexample.R$*{
    public static final int *;
}
-keep public class com.linkedin.android.mobilesdk.R$*{
    public static final int *;
}
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}

-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.umeng.socialize.impl.ImageImpl {*;}
-keep class com.sina.** {*;}
-dontwarn com.sina.**
-keep class  com.alipay.share.sdk.** {
   *;
}

-keepnames class * implements android.os.Parcelable {
    public static final ** CREATOR;
}

-keep class com.linkedin.** { *; }
-keep class com.android.dingtalk.share.ddsharemodule.** { *; }
-keepattributes Signature

个人所需要配置（项目中的bean或entity）

#---------------------------定制类---------------------------
-keep class com.agenet.quhi.application.bean.**{*;}
-keep class com.agenet.quhi.hi_home.bean.**{*;}
-keep class com.agenet.quhi.hi_mine.bean.**{*;}
-keep class com.agenet.quhi.hi_shares.bean.**{*;}

配置的也就这么多，其中语法关键字可以业余时间学习学习，毕竟简单的保证哪些会被混淆，哪些不被混淆，还有混淆之后app是否能运行，都需要更多的学习。