android studio apk混淆

在Android Studio当中混淆APK实在是太简单了，借助SDK中自带的Proguard工具，只需要修改app module 下的build.gradle中的一行配置即可。可以看到，现在build.gradle中minifyEnabled的值是false，这里我们只需要把值改成true，编译出来的APK包就会是混淆过的了。如下所示：

buildTypes { release { minifyEnabled true shrinkResources true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' signingConfig signingConfigs.release } debug { signingConfig signingConfigs.debug } }

其中：

minifyEnabled用于设置是否启用混淆；

shrinkResources用于设置删除无效的Resources，shrinkResources依赖于minifyEnabled，必须一起使用；

proguardFiles用于选定混淆配置文件。注意这里是在release闭包内进行配置的，因此只有编译出正式版的APK才会进行混淆，Debug版的APK是不会混淆的。当然这也是非常合理的，因为Debug版的APK文件我们只会用来内部测试，不用担心被人破解。

proguard-android.txt混淆配置文件，该文件存放于android studio的sdk目录下androidsdk\tools\proguard，打开文件如下：

# This is a configuration file for ProGuard. # http://proguard.sourceforge.net/index.html#manual/usage.html -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -verbose # Optimization is turned off by default. Dex does not like code run # through the ProGuard optimize and preverify steps (and performs some # of these optimizations on its own). -dontoptimize -dontpreverify # Note that if you want to enable optimization, you cannot just # include optimization flags in your own project configuration file; # instead you will need to point to the # "proguard-android-optimize.txt" file instead of this one from your # project.properties file. -keepattributes *Annotation* -keep public class com.google.vending.licensing.ILicensingService -keep public class com.android.vending.licensing.ILicensingService # For native methods, see http://proguard.sourceforge.net/manual/examples.html#native -keepclasseswithmembernames class * { native ; } # keep setters in Views so that animations can still work. # see http://proguard.sourceforge.net/manual/examples.html#beans -keepclassmembers public class * extends android.view.View { void set*(***); *** get*(); } # We want to keep methods in Activity that could be used in the XML attribute onClick -keepclassmembers class * extends android.app.Activity { public void *(android.view.View); } # For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations -keepclassmembers enum * { public static **[] values(); public static ** valueOf(java.lang.String); } -keepclassmembers class * implements android.os.Parcelable { public static final android.os.Parcelable$Creator CREATOR; } -keepclassmembers class **.R$* { public static ; } # The support library contains references to newer platform versions. # Don't warn about those in case this app is linking against an older # platform version. We know about them, and they are safe. -dontwarn android.support.** # Understand the @Keep support annotation. -keep class android.support.annotation.Keep -keep @android.support.annotation.Keep class * {*;} -keepclasseswithmembers class * { @android.support.annotation.Keep ; } -keepclasseswithmembers class * { @android.support.annotation.Keep ; } -keepclasseswithmembers class * { @android.support.annotation.Keep (...); }

我就问你 是不是感觉头很大，哈哈 别着急下面还有解释。

这个就是默认的混淆配置文件了，我们来一起逐行阅读一下。

好了，这就是proguard-android.txt文件中所有默认的配置，而我们混淆代码也是按照这些配置的规则来进行混淆的。经过我上面的讲解之后，相信大家对这些配置的内容基本都能理解了。

回到Android Studio项目当中，APK虽然已经成功混淆了，但是混淆的规则都是按照proguard-android.txt中默认的规则来的，当然我们也可以修改proguard-android.txt中的规则，但是直接在proguard-android.txt中修改会对我们本机上所有项目的混淆规则都生效，那么有没有什么办法只针对当前项目的混淆规则做修改呢？当然是有办法的了，你会发现任何一个Android Studio项目在app模块目录下都有一个proguard-rules.txt（proguard-rules.pro）文件，这个文件就是用于让我们编写只适用于当前项目的混淆规则的。自定义混淆通用模板如下：

empty

下面介绍常用第三方混淆配置 # AndroidEventBus -keep class org.simple.** { *; } -keep interface org.simple.** { *; } -keepclassmembers class * { @org.simple.eventbus.Subscriber ; } # 百度地图（jar包换成自己的版本，记得签名要匹配） -libraryjars libs/baidumapapi_v2_1_3.jar -keep class com.baidu.** {*;} -keep class vi.com.** {*;} -keep class com.sinovoice.** {*;} -keep class pvi.com.** {*;} -dontwarn com.baidu.** -dontwarn vi.com.** -dontwarn pvi.com.** # Bugly -dontwarn com.tencent.bugly.** -keep class com.tencent.bugly.** {*;} # ButterKnife -keep class butterknife.** { *; } -dontwarn butterknife.internal.** -keep class **$$ViewBinder { *; } -keepclasseswithmembernames class * { @butterknife.* ; } -keepclasseswithmembernames class * { @butterknife.* ; } # EventBus -keepattributes *Annotation* -keepclassmembers class ** { @org.greenrobot.eventbus.Subscribe ; } -keep enum org.greenrobot.eventbus.ThreadMode { *; } # Facebook -keep class com.facebook.** {*;} -keep interface com.facebook.** {*;} -keep enum com.facebook.** {*;} # FastJson -dontwarn com.alibaba.fastjson.** -keep class com.alibaba.fastjson.** { *; } -keepattributes Signature -keepattributes *Annotation* # Fresco -keep class com.facebook.fresco.** {*;} -keep interface com.facebook.fresco.** {*;} -keep enum com.facebook.fresco.** {*;} # 高德相关依赖 # 集合包:3D地图3.3.2 导航1.8.0 定位2.5.0 -dontwarn com.amap.api.** -dontwarn com.autonavi.** -keep class com.amap.api.**{*;} -keep class com.autonavi.**{*;} # 地图服务 -dontwarn com.amap.api.services.** -keep class com.map.api.services.** {*;} # 3D地图 -dontwarn com.amap.api.mapcore.** -dontwarn com.amap.api.maps.** -dontwarn com.autonavi.amap.mapcore.** -keep class com.amap.api.mapcore.**{*;} -keep class com.amap.api.maps.**{*;} -keep class com.autonavi.amap.mapcore.**{*;} # 定位 -dontwarn com.amap.api.location.** -dontwarn com.aps.** -keep class com.amap.api.location.**{*;} -keep class com.aps.**{*;} # 导航 -dontwarn com.amap.api.navi.** -dontwarn com.autonavi.** -keep class com.amap.api.navi.** {*;} -keep class com.autonavi.** {*;} # Glide -keep public class * implements com.bumptech.glide.module.GlideModule -keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** { **[] $VALUES; public *; } # Gson -keepattributes Signature-keepattributes *Annotation* -keep class sun.misc.Unsafe { *; } -keep class com.google.gson.stream.** { *; } # 使用Gson时需要配置Gson的解析对象及变量都不混淆。不然Gson会找不到变量。 # 将下面替换成自己的实体类 -keep class com.example.bean.** { *; } # Jackson -dontwarn org.codehaus.jackson.** -dontwarn com.fasterxml.jackson.databind.** -keep class org.codehaus.jackson.** { *;} -keep class com.fasterxml.jackson.** { *; } # 极光推送 -dontoptimize -dontpreverify -dontwarn cn.jpush.** -keep class cn.jpush.** { *; } # OkHttp3 -dontwarn com.squareup.okhttp3.** -keep class com.squareup.okhttp3.** { *;} -dontwarn okio.** # Okio -dontwarn com.squareup.** -dontwarn okio.** -keep public class org.codehaus.* { *; } -keep public class java.nio.* { *; } # OrmLite -keepattributes *DatabaseField* -keepattributes *DatabaseTable* -keepattributes *SerializedName* -keep class com.j256.** -keepclassmembers class com.j256.** { *; } -keep enum com.j256.** -keepclassmembers enum com.j256.** { *; } -keep interface com.j256.** -keepclassmembers interface com.j256.** { *; } # Realm -keep class io.realm.annotations.RealmModule -keep @io.realm.annotations.RealmModule class * -keep class io.realm.internal.Keep -keep @io.realm.internal.Keep class * { *; } -dontwarn javax.** -dontwarn io.realm.** # Retrofit -dontwarn retrofit2.** -keep class retrofit2.** { *; } -keepattributes Signature -keepattributes Exceptions # Retrolambda -dontwarn java.lang.invoke.* # RxJava RxAndroid -dontwarn sun.misc.** -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* { long producerIndex; long consumerIndex; } -keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef { rx.internal.util.atomic.LinkedQueueNode producerNode; } -keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueConsumerNodeRef { rx.internal.util.atomic.LinkedQueueNode consumerNode; } # 微信支付 -dontwarn com.tencent.mm.** -dontwarn com.tencent.wxop.stat.** -keep class com.tencent.mm.** {*;} -keep class com.tencent.wxop.stat.**{*;} # 信鸽 -keep public class * extends android.app.Service -keep public class * extends android.content.BroadcastReceiver -keep class com.tencent.android.tpush.** {* ;} -keep class com.tencent.mid.** {* ;} -keepattributes *Annotation* # 新浪微博 -keep class com.sina.weibo.sdk.* { *; } -keep class android.support.v4.* { *; } -keep class com.tencent.* { *; } -keep class com.baidu.* { *; } -keep class lombok.ast.ecj.* { *; } -dontwarn android.support.v4.** -dontwarn com.tencent.**s -dontwarn com.baidu.** # 讯飞语音 -dontwarn com.iflytek.** -keep class com.iflytek.** {*;} # 银联 -dontwarn com.unionpay.** -keep class com.unionpay.** { *; } # 友盟统计分析 -keepclassmembers class * { public (org.json.JSONObject); } -keepclassmembers enum com.umeng.analytics.** { public static **[] values(); public static ** valueOf(java.lang.String); } # 友盟自动更新 -keepclassmembers class * { public (org.json.JSONObject); } -keep public class cn.irains.parking.cloud.pub.R$*{ public static final int *; } -keep public class * extends com.umeng.** -keep class com.umeng.** { *; } # 支付宝钱包 -dontwarn com.alipay.** -dontwarn HttpUtils.HttpFetcher -dontwarn com.ta.utdid2.** -dontwarn com.ut.device.** -keep class com.alipay.android.app.IAlixPay{*;} -keep class com.alipay.android.app.IAlixPay$Stub{*;} -keep class com.alipay.android.app.IRemoteServiceCallback{*;} -keep class com.alipay.android.app.IRemoteServiceCallback$Stub{*;} -keep class com.alipay.sdk.app.PayTask{ public *;} -keep class com.alipay.sdk.app.AuthTask{ public *;} -keep class com.alipay.mobilesecuritysdk.* -keep class com.ut.* 好了，到这里此文已经结束了，如果帮到了您，请给我点个喜欢呗。如果遇到代码片段显示不清楚这是的问题，请多次刷新下，多谢！