android studio 代码混淆

今天闲，所以想把项目加入混淆，可以减小apk体积，也可以优化项目。

本来以前也加入过，但是因为总是报错所以不了了之。

androidstudio 混淆

首先需要在项目的build.gradle文件中加入如下代码。

androidstudio都有一个默认混淆的文件，没有也可以自己建一个。

 

保证有文件，文件名一样就好了，名字其实可以修改。

 

其实开始也啥都不知道，就再网上慢慢搜，一遍一遍的试。

 

在这里说明几个语法

前面加“#”代表注释，混淆语句前面都有“-

保持某个类不混淆 -keep class com.uyac.test.MainActivity

保持某个包下面的类不混淆 -keep class com.uyac.test **

保持某个包下面的类还有类中代码不混淆 -keep class com.uyac.test**{ *; }

保持继承activity的类 -keep class * extends android.app.Activity (同理Fragment、Service、BroadCast都可以以此混淆)

例如-keep public class * extends android.support.v4.app.Fragment

保持资源类

-keepclassmembers class **.R$* {

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<strong>   publicstatic <fields>;

</fields></strong>}

 

 

....

 

这样之后，就要去混淆文件中去加混淆代码了。（混淆代码在文章末尾贴出），我直接说遇到的问题。

 

打包时遇到了这样的错误

Error:Execution failed for task ':ElegantLife2.1.0:transformClassesAndResourcesWithProguardForRelease'.
> java.io.IOException: Can't read [D:\project_as_1\ElegantLife3.0.0_as2\MyUyac\ElegantLife2.1.0\libs\umeng-analytics-v5.2.4.jar] (No such file or directory)

 

这是因为我混淆文件里面有混淆-libraryjarslibs/umeng-analytics-v5.2.4.jar

因为libs下没有这个文件！我的umeng-analytics 版本是v5.6.4 所以编译没通过。

改成-libraryjarslibs/umeng-analytics-v5.6.4.jar 就没问题了

 

 

然后我再次打包，打包是可以成功的，只是打开app在欢迎页就崩了。

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.uyac.elegantlife.tt, PID: 14659
java.lang.NullPointerException: Attempt to invoke virtual method 'int com.uyac.elegantlife.c.bm$a.e()' on a null object reference
at com.uyac.elegantlife.a.z.getView(SourceFile:176)
at android.widget.HeaderViewListAdapter.getView(HeaderViewListAdapter.java:220)0
at android.widget.AbsListView.obtainView(AbsListView.java:2347)
at android.widget.ListView.makeAndAddView(ListView.java:1864)
at android.widget.ListView.fillDown(ListView.java:698)
at android.widget.ListView.fillFromTop(ListView.java:759)
at android.widget.ListView.layoutChildren(ListView.java:1659)
at android.widget.AbsListView.onLayout(AbsListView.java:2151)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1077)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.support.v4.view.ViewPager.onLayout(SourceFile:1767)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.support.v4.view.ViewPager.onLayout(SourceFile:1767)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1077)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
at android.view.View.layout(View.java:15714)
at android.view.ViewGroup.layout(ViewGroup.java:5046)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2091)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.

 

报错如上，（即使打包之后，只要代码中有输出log，也是可以看到的，错误信息也有，可以用于打包后调试，有更好的方法欢迎讨论）

 

这种问题就不好解决了，看样子是一个类部类，而正好欢迎界面过后要启动的界面适配器里面有类部类，所以我就keep了我的适配器包。然后不报错了。

 

但是还没有结束

第三方登录，和分享功能不能用！！！因为用的友盟分享和第三方登录。

 

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<em>#友盟混淆</em>

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<em>-keepclasscom.umeng.**</em>

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<em>-keepclasscom.umeng.**{*;}</em>

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<em>

</em>

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<em>这样看来，混淆其实也很简单，最主要是找到问题，解决问题。</em>

 

 

最后献上混淆源码

 

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#指定代码的压缩级别

 -optimizationpasses5

 #包明不混合大小写

 -dontusemixedcaseclassnames

 #不去忽略非公共的库类

 -dontskipnonpubliclibraryclasses

  #优化  不优化输入的类文件

 -dontoptimize

  #不做预校验

 -dontpreverify

  #混淆时是否记录日志

 -verbose

  # 混淆时所采用的算法

 -optimizations !code/simplification/arithmetic,!field/*,!class/merging/*

  #忽略警告

 -ignorewarning

 

 

  #apk 包内所有 class的内部结构

  -dump class_files.txt

  #未混淆的类和成员

  -printseeds seeds.txt

  #列出从 apk 中删除的代码

  -printusage unused.txt

  #混淆前后的映射

  -printmapping mapping.txt

 

 

 # 保持哪些类不被混淆 google默认 不混淆 Activity 、Service ... 类的子类

 #混淆了可能编译不通过

 -keeppublicclass * extendsandroid.app.Fragment

 -keeppublicclass * extendsandroid.app.Activity

 -keeppublicclass * extendsandroid.app.Application

 -keeppublicclass * extendsandroid.app.Service

 -keeppublicclass * extendsandroid.content.BroadcastReceiver

 -keeppublicclass * extendsandroid.content.ContentProvider

 -keeppublicclass * extendsandroid.app.backup.BackupAgentHelper

 -keeppublicclass * extendsandroid.preference.Preference

 -keeppublicclass com.android.vending.licensing.ILicensingService

 

 #申明第三方库，以免出现调用错误

 -libraryjars libs/alipaySDK-20150602.jar

 -libraryjars libs/aliyun-oss-sdk-android-2.2.0.jar

 -libraryjars libs/AMap_2DMap_V2.8.1_20160202.jar

 -libraryjars libs/AMap_Location_V2.4.1_20160414.jar

 -libraryjars libs/android-async-http-1.4.8.jar

 -libraryjars libs/com.umeng.message.lib_v2.5.0.jar

 -libraryjars libs/commons-codec-1.7.jar

 -libraryjars libs/eventbus-2.1.0.jar

 -libraryjars libs/gson-2.6.2.jar

 -libraryjars libs/libammsdk.jar

 -libraryjars libs/okhttp-3.2.0.jar

 -libraryjars libs/okio-1.6.0.jar

 -libraryjars libs/SimplifySpan.jar

 -libraryjars libs/umeng-analytics-v5.6.4.jar

 -libraryjars libs/universal-image-loader-1.9.5.jar

 -libraryjars libs/UPPayAssistEx.jar

 -libraryjars libs/UPPayPluginExStd.jar

 

 

  #保护注解

  -keepattributes *Annotation*

 

 #如果有引用v4包可以添加下面这行

 -keeppublicclass * extendsandroid.support.v4.app.Fragment

 

 #如果引用了v4或者v7包

 -dontwarn android.support.**

 -keeppublicclass * extendsandroid.view.View {

     public<init>(android.content.Context);

     public<init>(android.content.Context, android.util.AttributeSet);

     public<init>(android.content.Context, android.util.AttributeSet, int);

     publicvoid set*(...);

 }

 

 #保持native方法不被混淆

-keepclasseswithmembernamesclass* {

   native<methods>;

}

 

 # Keep names - Native method names. Keep all nativeclass/method names.

 -keepclasseswithmembers,allowshrinkingclass* {

     native<methods>;

 }

 

 #保持自定义控件类不被混淆

 -keepclasseswithmembersclass* {

     public<init>(android.content.Context, android.util.AttributeSet);

 }

 

 #保持自定义控件类不被混淆

 -keepclassmembersclass* extendsandroid.app.Activity {

    publicvoid *(android.view.View);

 }

 

 #保持 Parcelable 不被混淆

 -keepclass* implementsandroid.os.Parcelable {

   publicstatic final android.os.Parcelable$Creator *;

 }

 

 #保持 Serializable 不被混淆

 -keepnamesclass* implementsjava.io.Serializable

 

 #保持 Serializable 不被混淆并且enum类也不被混淆

 -keepclassmembersclass* implementsjava.io.Serializable {

     staticfinal long serialVersionUID;

     privatestatic final java.io.ObjectStreamField[] serialPersistentFields;

     !static!transient<fields>;

     !private<fields>;

     !private<methods>;

     privatevoid writeObject(java.io.ObjectOutputStream);

     privatevoid readObject(java.io.ObjectInputStream);

     java.lang.Object writeReplace();

     java.lang.Object readResolve();

 }

 

 #保持枚举enum类不被混淆 如果混淆报错，建议直接使用上面的 -keepclassmembers class* implementsjava.io.Serializable即可

 -keepclassmembersenum* {

     publicstatic **[] values();

     publicstatic ** valueOf(java.lang.String);

 }

 

 #不混淆资源类

 -keepclassmembersclass**.R$* {

     publicstatic <fields>;

 }

 

  #不混淆H5交互

-keepattributes *JavascriptInterface*

 #ClassName是类名，H5_Object是与javascript相交互的object，建议以内部类形式书写

-keepclassmembers  class**.ClassName$H5_Object{

                 *;

  }

 

#如果使用有Gson，则添加以下配置

 -keepattributes Signature

 -keepattributes *Annotation*

 -keepclasssun.misc.Unsafe { *; }

 

#keep model

-keepclasscom.uyac.elegantlife.entity.**{*;}

 

#keep 适配器

-keepclasscom.uyac.elegantlife.adapter.**{*;}

 

#高德定位混淆

-keepclasscom.amap.api.location.**{*;}

 

-keepclasscom.amap.api.fence.**{*;}

 

-keepclasscom.autonavi.aps.amapapi.model.**{*;}

 

#高德2D地图混淆

-keepclasscom.amap.api.maps2d.**{*;}

 

-keepclasscom.amap.api.mapcore2d.**{*;}

 

#友盟混淆

-dontwarn com.umeng.**

-keepclasscom.umeng*.** {*; }

 

 

 #三星应用市场需要添加:sdk-v1.0.0.jar,look-v1.0.1.jar

 #-libraryjars libs/sdk-v1.0.0.jar

 #-libraryjars libs/look-v1.0.1.jar