buildTypes {        debug {            buildConfigField "boolean", "LOG_DEBUG", "true"            minifyEnabled false            zipAlignEnabled true            shrinkResources true        }        release {            buildConfigField "boolean", "LOG_DEBUG", "false"            minifyEnabled true            zipAlignEnabled true            shrinkResources true            proguardFiles getDefaultProguardFile(‘proguard-android.txt‘), ‘proguard-rules.pro‘        }    }

-dontskipnonpubliclibraryclasses # 不忽略非公共的库类
-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
-keepattributes *Annotation*     # 保持注解-ignorewarning                   # 忽略警告
-dontoptimize                    # 优化不优化输入的类文件
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*  # 混淆时所采用的算法
#保持哪些类不被混淆-keep public class * extends android.app.Activity      -keep public class * extends android.app.Application   -keep public class * extends android.app.Service       -keep public class * extends android.content.BroadcastReceiver  -keep public class * extends android.content.ContentProvider    -keep public class * extends android.app.backup.BackupAgentHelper -keep public class * extends android.preference.Preference        -keep public class com.android.vending.licensing.ILicensingService    
#生成日志数据，gradle build时在本项目根目录输出
-dump class_files.txt            #apk包内所有class的内部结构
-printseeds seeds.txt            #未混淆的类和成员
-printusage unused.txt           #打印未被使用的代码
-printmapping mapping.txt        #混淆前后的映射

-keep public class * extends android.support.** #如果有引用v4或者v7包，需添加
-libraryjars libs/xxx.jar        #混淆第三方jar包，其中xxx为jar包名
-keep class com.xxx.**{*;}       #不混淆某个包内的所有文件
-dontwarn com.xxx**              #忽略某个包的警告
-keepattributes Signature        #不混淆泛型
-keepnames class * implements java.io.Serializable #不混淆Serializable

-keepclassmembers class **.R$* { #不混淆资源类
　　public static <fields>;
}-keepclasseswithmembernames class * {  # 保持 native 方法不被混淆    native <methods>;}-keepclasseswithmembers class * {      # 保持自定义控件类不被混淆    public <init>(android.content.Context, android.util.AttributeSet);}-keepclasseswithmembers class * {      # 保持自定义控件类不被混淆    public <init>(android.content.Context, android.util.AttributeSet, int);}-keepclassmembers class * extends android.app.Activity { # 保持自定义控件类不被混淆       public void *(android.view.View);}-keepclassmembers enum * {             # 保持枚举 enum 类不被混淆        public static **[] values();        public static ** valueOf(java.lang.String);}-keep class * implements android.os.Parcelable {         # 保持 Parcelable 不被混淆      public static final android.os.Parcelable$Creator *;}