android开发之android混淆问题解析

应用开发完了，测试没问题了，快上市场了，这时候就要混淆加固多渠道打包加上线了，所以，混淆就来了：

混淆是什么，就是把类名，方法名，变量名给弄成简单的单词或者字母来代替，从而防止别人反编译后轻松的得到。与其说我们配置混淆，不如说我们来配置哪些包里面的哪些类不要被混淆，也就是在下面的那个文件里声明一下，哪些不要给我混淆：

1.在module的build.gradle的android标签里

buildtypes {
 release {
  signingconfig signingconfigs.release
  shrinkresources true
  minifyenabled true
  zipalignenabled true
  proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'

 }

 debug {
  signingconfig signingconfigs.release
  shrinkresources true
  minifyenabled true
  zipalignenabled true
  proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'
 }

}

2.在proguard-rules.pro里

-optimizationpasses 5 # 指定代码的压缩级别
-dontusemixedcaseclassnames# 是否使用大小写混合
-dontpreverify  # 混淆时是否做预校验
-verbose # 混淆时是否记录日志
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*  # 混淆时所采用的算法
#glide混淆
-keep public class * implements com.bumptech.glide.module.glidemodule
-keep public class * extends com.bumptech.glide.module.appglidemodule
-keep public enum com.bumptech.glide.load.imageheaderparser$** {
  **[] $values;
  public *;
}

# for dexguard only
#-keepresourcexmlelements manifest/application/meta-data@value=glidemodule

#okgo混淆
#okhttp
-dontwarn okhttp3.**
-keep class okhttp3.**{*;}

#okio
-dontwarn okio.**
-keep class okio.**{*;}

#腾讯bugly
-dontwarn com.tencent.bugly.**
-keep public class com.tencent.bugly.**{*;}

#butterknife
-keep class butterknife.** { *; }
-dontwarn butterknife.internal.**
-keep class **$$viewbinder { *; }
-keepclasseswithmembernames class * {
 @butterknife.* ;
}
-keepclasseswithmembernames class * {
 @butterknife.* ;
}
## gson 2.2.4 specific rules ##
# gson uses generic type information stored in a class file when working with fields. proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes signature
# for using gson @expose annotation
-keepattributes *annotation*
-keepattributes enclosingmethod
# gson specific classes
-dontwarn com.google.gson.**

#eventbus2.0
-keep class de.greenrobot.event.** {*;}
-keepclassmembers class ** {
 public void onevent*(**);
 void onevent*(**);
}

## new rules for eventbus 3.0.x ##
# https://greenrobot.org/eventbus/documentation/proguard/
-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);
}

# fastjson proguard rules
# https://github.com/alibaba/fastjson
-dontwarn com.alibaba.fastjson.**
-keepattributes signature
-keepattributes *annotation*

#support-v7-appcompat
-keep public class android.support.v7.widget.** { *; }
-keep public class android.support.v7.internal.widget.** { *; }
-keep public class android.support.v7.internal.view.menu.** { *; }

-keep public class * extends android.support.v4.view.actionprovider {
 public (android.content.context);
}

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

# 枚举也不要混淆also keep - enumerations. keep the special static methods that are required in
# enumeration classes.
-keepclassmembers enum  * {
 public static **[] values();
 public static ** valueof(java.lang.string);
}



#native方法不做混淆 keep names - native method names. keep all native class/method names.
-keepclasseswithmembers,allowshrinking class * {
 native ;
}
# 保持 parcelable 不被混淆
-keep class * implements android.os.parcelable {
 public static final android.os.parcelable$creator *;
}

#实体类不参与混淆
-keep class com.hejun.solidtext.model.** { *; }
 #不混淆r类
-keep public class com.jph.android.r$*{
 public static final int *;
}

这里面我也还有一些不是很明白，比如android的很多依赖，比如通过gradle配置的一些v4，v7包里面的依赖是不是也要配置不要被混淆呢？但是，我的应用小，做了上面的事情就够了。