Android 代码混淆，以下是使用 Android studio 进行的代码混淆
（包含了对一些第三方服务混淆：
android.support.v4，
fastjson，              
imageloader,
volley,
core,
jpush,
baidui,
友盟统计）

# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in C:\Users\lenovo\AppData\Local\Android\sdk/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the proguardFiles
# directive in build.gradle.
#
# For more details, see
#   http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
#   public *;
#}
-ignorewarnings    #忽略警告
-optimizationpasses 5          # 指定代码的压缩级别
-dontusemixedcaseclassnames   # 是否使用大小写混合(否)
-dontskipnonpubliclibraryclasses   # 是否混淆第三方jar(否)
-dontpreverify           # 混淆时是否做预校验(否)
-verbose                # 混淆时是否记录日志(是)

-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*  # 混淆时所采用的算法

-keepattributes Signature  #过滤泛型（能会出现的类型转换错误）
-keepattributes *Annotation*  #不混淆项目注解
-keep class **.R$* { *; }  #保持R文件不被混淆，否则，你的反射是获取不到资源id的

-keepclasseswithmembernames class * { 
     # 保持 native 方法不被混淆    native <methods>;
}

-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 public class * extends android.view.View { 
    #保持自定义控件指定规则的方法不被混淆    
    public <init>(android.content.Context);    
    public <init>(android.content.Context, android.util.AttributeSet);    
    public <init>(android.content.Context, android.util.AttributeSet, int);    
    public void set*(...);
}

-keep class * implements android.os.Parcelable {   
    # 保持 Parcelable 不被混淆  
    public static final android.os.Parcelable$Creator *;
}

 #主要确保JOSN解析字段名称不被混淆
-keepnames class * implements java.io.Serializable #需要序列化和反序列化的类不能被混淆（注：Java反射用到的类也不能被混淆）

-keepclassmembers class * implements java.io.Serializable {
    #保护实现接口Serializable的类中，指定规则的类成员不被混淆    
    static final long serialVersionUID;    
    private static final java.io.ObjectStreamField[] serialPersistentFields;    
    !static !transient <fields>;    
    private void writeObject(java.io.ObjectOutputStream);    
    private void readObject(java.io.ObjectInputStream);    
    java.lang.Object writeReplace();    
    java.lang.Object readResolve();
}

#webView
-keep class **.Webview2JsInterface { *; }  #保护WebView对HTML页面的API不被混淆

-keepclassmembers class * extends android.webkit.WebViewClient {  
    #如果你的项目中用到了webview的复杂操作 ，最好加入     
    public void *(android.webkit.WebView,java.lang.String,android.graphics.Bitmap); 
    public boolean * (android.webkit.WebView,java.lang.String);
}

-keepclassmembers class * extends android.webkit.WebChromeClient {  
    #如果你的项目中用到了webview的复杂操作 ，最好加入     
    public void *(android.webkit.WebView,java.lang.String);
}

-keepclassmembers class fqcn.of.javascript.interface.for.webview {   
  public *;
}

#butterknife
-keep class butterknife.** { *; }

-dontwarn butterknife.internal.**

-keep class **$$ViewBinder { *; }

-keepclasseswithmembernames class * {
    @butterknife.* <fields>;
}

-keepclasseswithmembernames class * {
    @butterknife.* <methods>;
}
#-------------------------------------------------------------------------
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Fragment
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.preference.Preference
-keep class com.yungui.service.model.** { *; }#实体类不混淆
#必要时还需混淆自定义控件

#AndroidStudio 解决 Classes警告
-keepattributes EnclosingMetho
-keepattributes InnerClasses#不混淆第三方jar

-dontoptimize
-dontpreverify

#start----------------------------------------------------------------------
# android.support.v4
-dontwarn android.support.v4.**
-keep interface android.support.v4.app.** { *; }
-keep public class * extends android.support.v4.**

#fastjson
-dontwarn com.alibaba.fastjson.**
-keep class com.alibaba.fastjson.** { *; }

#imageloader
-dontwarn com.nostra13.universalimageloader.**
-keep class com.nostra13.universalimageloader.** { *; }

# volley
-dontwarn com.android.volley.jar.**
-keep class com.android.volley.**{*;}

#core
-dontwarn cn.google.zxing.**
-keep class cn.google.zxing.** { *; }


# jpush
-dontwarn cn.jpush.**
-keep class cn.jpush.** { *; }

# baidui map
-dontwarn com.baidu.**
-keep class com.baidu.**{*;}
-keep class vi.com.**{*;}

#友盟APP统计提供的混淆规则
-keepclassmembers class * {   
    public <init> (org.json.JSONObject);
}
-keep public class [com.yungui.service].R$*{
    public static final int *;
}
#end----------------------------------------------------------------------

以上混淆规则已经过测试，如有失误欢迎指正