Android Studio:ProGuard 混淆配置 防止反編譯

AndroidStudio中的項目能夠用compile的形式引入github上的開源項目,能夠引用module,而不必定都要用libs文件夾中添加jar包的形式。在最終realease打包時,混淆的設置是比較重要的,不然會致使生成的包有不少功能不能正常使用。下面列舉一個基本的app的build.gradle和混淆文件。並注意,混淆打包後的apk文件大小會比不使用混淆要小。javascript

在app根目錄下設置build.gradle和混淆文件,而後把混淆選項寫入混淆文件就能夠。雖然app項目中可能引用了一些module,但這些module工程能夠不定義本身的混淆,個人工程目錄結構以下:html

其中app是應用主模塊,引用剩餘的module,被引用module的build.gradle中都使用默認的設置不啓用混淆:java

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

在主目錄的build.gradle:android

apply plugin: 'com.android.application'

def releaseTime() {
    return new Date().format("yyyy-MM-dd", TimeZone.getTimeZone("UTC"))
}

repositories {
    maven {
        url 'https://oss.sonatype.org/content/repositories/snapshots'
    }
}

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"
    defaultConfig {
        applicationId "com.tiannuo.zip4jdemo"
        minSdkVersion 19
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    lintOptions {
        abortOnError false
    }

    //簽名
    signingConfigs {
        debug {

        }
        release {// 本身的簽名文件
            storeFile file("E:\\Android\\new_sign.jks")
            storePassword "123456"
            keyAlias "123456"
            keyPassword "123456"
        }
    }

    buildTypes {
        debug {
            // 顯示Log
            buildConfigField "boolean", "LOG_DEBUG", "true"
            versionNameSuffix "-debug"
            minifyEnabled false
            zipAlignEnabled false
            shrinkResources false
            signingConfig signingConfigs.debug
        }

        release {
            // 不顯示Log
            buildConfigField "boolean", "LOG_DEBUG", "false"
            //混淆
            minifyEnabled true
            //Zipalign優化
            zipAlignEnabled true

            // 移除無用的resource文件
            shrinkResources true
            //前一部分表明系統默認的android程序的混淆文件,該文件已經包含了基本的混淆聲明,後一個文件是本身的定義混淆文件
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            //簽名
            signingConfig signingConfigs.release

            applicationVariants.all { variant ->
                variant.outputs.each { output ->
                    def outputFile = output.outputFile
                    if (outputFile != null && outputFile.name.endsWith('.apk')) {
                        // 輸出apk名稱爲app_v1.0_2015-xx-xx_xxxx.apk
                        //def fileName = "app_v${defaultConfig.versionName}_${releaseTime()}.apk"
                        def fileName = "app_v${defaultConfig.versionName}_${variant.productFlavors[0].name}.apk"
                        output.outputFile = new File(outputFile.parent, fileName)
                    }
                }
            }
        }
    }
    //渠道Flavors,配置不一樣風格的app,友盟渠道統計時用到
    productFlavors {
        "offical" {}
        "360" {}
        yingyongbao {}
        wandoujia {}
        baidu {}
        "91" {}
    }


}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    testCompile 'junit:junit:4.12'
    compile files('libs/zip4j_1.3.2.jar')
}

 

proguard-rules.pro文件中則定義了項目的混淆選項,定義以下:
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in E:\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 *;
#}
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in D:\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 *;
}

#指定代碼的壓縮級別
-optimizationpasses 5

#包明不混合大小寫
-dontusemixedcaseclassnames

#不去忽略非公共的庫類
-dontskipnonpubliclibraryclasses

 #優化  不優化輸入的類文件
-dontoptimize

 #預校驗
-dontpreverify

 #混淆時是否記錄日誌
-verbose

 # 混淆時所採用的算法
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*

#保護註解
-keepattributes *Annotation*

# 保持哪些類不被混淆
-keep public class * extends android.app.Fragment
-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
#若是有引用v4包能夠添加下面這行
-keep public class * extends android.support.v4.app.Fragment


#忽略警告
-ignorewarning

##記錄生成的日誌數據,gradle build時在本項目根目錄輸出##
#apk 包內全部 class 的內部結構
-dump proguard/class_files.txt
#未混淆的類和成員
-printseeds proguard/seeds.txt
#列出從 apk 中刪除的代碼
-printusage proguard/unused.txt
#混淆先後的映射
-printmapping proguard/mapping.txt
########記錄生成的日誌數據,gradle build時 在本項目根目錄輸出-end######

#若是引用了v4或者v7-dontwarn android.support.**

####混淆保護本身項目的部分代碼以及引用的第三方jarlibrary-end####



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

#保持自定義控件類不被混淆
-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

#保持自定義控件類不被混淆
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}

-keep public class * extends android.view.View {
    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*(...);
}

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

#保持 Serializable 不被混淆
-keepnames class * implements java.io.Serializable

#保持 Serializable 不被混淆而且enum 類也不被混淆
-keepclassmembers class * implements java.io.Serializable {
    static final long serialVersionUID;
    private static final java.io.ObjectStreamField[] serialPersistentFields;
    !static !transient <fields>;
    !private <fields>;
    !private <methods>;
    private void writeObject(java.io.ObjectOutputStream);
    private void readObject(java.io.ObjectInputStream);
    java.lang.Object writeReplace();
    java.lang.Object readResolve();
}

#保持枚舉 enum 類不被混淆
-keepclassmembers enum * {
  public static **[] values();
  public static ** valueOf(java.lang.String);
}

-keepclassmembers class * {
    public void *ButtonClicked(android.view.View);
}

#不混淆資源類
-keepclassmembers class **.R$* {
    public static <fields>;
}

#避免混淆泛型 若是混淆報錯建議關掉
#-keepattributes Signature

#移除Log類打印各個等級日誌的代碼,打正式包的時候能夠作爲禁log使用,這裏能夠做爲禁止log打印的功能使用,另外的一種實現方案是經過BuildConfig.DEBUG的變量來控制
#-assumenosideeffects class android.util.Log {
#    public static *** v(...);
#    public static *** i(...);
#    public static *** d(...);
#    public static *** w(...);
#    public static *** e(...);
#}

#############################################################################################
########################                 以上通用           ##################################
#############################################################################################

#######################     經常使用第三方模塊的混淆選項         ###################################
#gson
#若是用用到Gson解析包的,直接添加下面這幾行就能成功混淆,否則會報錯。
-keepattributes Signature
# Gson specific classes
-keep class sun.misc.Unsafe { *; }
# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.** { *; }
-keep class com.google.gson.stream.** { *; }

#mob
-keep class android.net.http.SslError
-keep class android.webkit.**{*;}
-keep class cn.sharesdk.**{*;}
-keep class com.sina.**{*;}
-keep class m.framework.**{*;}
-keep class **.R$* {*;}
-keep class **.R{*;}
-dontwarn cn.sharesdk.**
-dontwarn **.R$*

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

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

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

######引用的其餘Module能夠直接在app的這個混淆文件裏配置

# 若是使用了Gson之類的工具要使被它解析的JavaBean類即實體類不被混淆。
-keep class com.matrix.app.entity.json.** { *; }
-keep class com.matrix.appsdk.network.model.** { *; }

#####混淆保護本身項目的部分代碼以及引用的第三方jarlibrary#######
#若是在當前的application module或者依賴的library module中使用了第三方的庫,並不須要顯式添加規則
#-libraryjars xxx
#添加了反而有可能在打包的時候遭遇同一個jar屢次被指定的錯誤,通常只須要添加忽略警告和保持某些class不被混淆的聲明。
#libaray的形式引用了開源項目,若是不想混淆 keep 掉,在引入的modulebuild.gradle中設置minifyEnabled=false
-keep class com.nineoldandroids.** { *; }
-keep interface com.nineoldandroids.** { *; }
-dontwarn com.nineoldandroids.**
# 下拉刷新
-keep class in.srain.cube.** { *; }
-keep interface in.srain.cube.** { *; }
-dontwarn in.srain.cube.**
# observablescrollviewtab fragment
-keep class com.github.ksoichiro.** { *; }
-keep interface com.github.ksoichiro.** { *; }
-dontwarn com.github.ksoichiro.**

 

而後執行build的release打包,會在app目錄下生成一個app/build/outputs文件夾,裏面有混淆先後文件的映射信息等文本文件,之後bug定位就靠它了git

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