APK优化（六）之代码混淆

model的build.gradle

buildTypes {
        release {
//            源代码混淆 true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
        debug {
            //            源代码混淆 true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

proguard-rules.pro

-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
-keep public class * extends android.app.Activity # 保持哪些类不被混淆
-keep public class * extends android.app.Application # 保持哪些类不被混淆
-keep public class * extends android.app.Service # 保持哪些类不被混淆
-keep public class * extends android.content.BroadcastReceiver # 保持哪些类不被混淆
-keep public class * extends android.content.ContentProvider # 保持哪些类不被混淆
-keep public class * extends android.app.backup.BackupAgentHelper # 保持哪些类不被混淆
-keep public class * extends android.preference.Preference # 保持哪些类不被混淆
-keep public class com.android.vending.licensing.ILicensingService # 保持哪些类不被混淆
-keepclasseswithmembernames class * { # 保持 native 方法不被混淆 
   native <methods>;
}
-keepclasseswithmembers class * { # 保持自定义控件类不被混淆 
   public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {# 保持自定义控件类不被混淆 
   public <init>(android.content.Context, android.util.AttributeSet, int); 
}
-keepclassmembers class * extends android.app.Activity { # 保持自定义控件类不被混淆  
   public void *(android.view.View);
}
-keepclassmembers enum * { # 保持枚举 enum 类不被混淆  
   public static **[] values(); 
   public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {#保持Parcelable不被混淆
   public static final android.os.Parcelable$Creator *;
}
# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
-keep public class * implements java.io.Serializable {*;}
-keepclassmembers class * implements java.io.Serializable {    
   static final long serialVersionUID;    
   private static final java.io.ObjectStreamField[]   serialPersistentFields;    
   private void writeObject(java.io.ObjectOutputStream);    
   private void readObject(java.io.ObjectInputStream);    
   java.lang.Object writeReplace();   
   java.lang.Object readResolve();
}
-keepclassmembers class * {   
   public <init> (org.json.JSONObject);
}
#com.demo.demo是你的包名
-keep public class com.demo.demo.R$*{
   public static final int *;
}

Butterknife

-keep class butterknife.** { *; }
-dontwarn butterknife.internal.**
-keep class **$$ViewBinder { *; }
-keepclasseswithmembernames class * {    
   @butterknife.* <fields>;
}
-keepclasseswithmembernames class * {    
   @butterknife.* <methods>;
}

Gson

# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# Gson specific classes
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }
# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }
-keep class com.google.gson.** { *;}
#这句非常重要，主要是滤掉 com.demo.demo.bean包下的所有.class文件不进行混淆编译,com.demo.demo是你的包名
-keep class com.demo.demo.bean.** {*;}

SlidingMenu

-dontwarn com.jeremyfeinstein.slidingmenu.lib.**
-keep class com.jeremyfeinstein.slidingmenu.lib.**{*;}

网易

-dontwarn com.netease.**
-keep class com.netease.** {*;}

以上列举了几个，需要的话去官网查找。

注意

将所需要的混淆都加进去，发现哪个class混淆有问题就keep哪个，例如-keep class com.netease.** {*;} 即不混淆netease下的东西。检查重复的然后删掉即可

APK优化（一）之SVG--------------解决大量的套图问题
 APK优化（二）之Tint着色器-------------减少apk体积
 APK优化（三）之资源打包配置----resources.arsc
APK优化（四）之.so动态库打包配置
 APK优化（五）之移除无用资源，物理删除
 APK优化（六）之代码混淆
 APK优化（七）之启用shrinkResources资源缩减 ,不需要物理上的删除
 APK优化（八）之启用webp转换插件-----图片变小
 APK优化（九）之资源res文件混淆和7ZIP压缩