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androidstudio初次成功混淆遇到的问题

2016-10-18 18:16 435 查看

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以下图为例：

前面加“#”代表注释，混淆语句前面都有“-保持某个类不混淆 -keepclass 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 -keeppublic class * extends android.support.v4.app.Fragment保持资源类-keepclassmembersclass **.R$* {

    public static <fields>;
}

....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 -libraryjars libs/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-libraryjars libs/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。

#友盟混淆

-keep class com.umeng.**

-keep class com.umeng.**{*;}

这样看来，混淆其实也很简单，最主要是找到问题，解决问题。

最后献上混淆源码

#指定代码的压缩级别-optimizationpasses 5#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-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#保护注解-keepattributes *Annotation*#如果有引用v4包可以添加下面这行-keep public class * extends android.support.v4.app.Fragment#如果引用了v4或者v7包-dontwarn android.support.**-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 native 方法不被混淆-keepclasseswithmembernames class * {native <methods>;}# Keep names - Native method names. Keep all native class/method names.-keepclasseswithmembers,allowshrinking class * {native <methods>;}#保持自定义控件类不被混淆-keepclasseswithmembers class * {public <init>(android.content.Context, android.util.AttributeSet);}#保持自定义控件类不被混淆-keepclassmembers class * extends android.app.Activity {public void *(android.view.View);}#保持 Parcelable 不被混淆-keep class * implements android.os.Parcelable {public static final android.os.Parcelable$Creator *;}#保持 Serializable 不被混淆-keepnames class * implements java.io.Serializable#保持 Serializable 不被混淆并且enum 类也不被混淆-keepclassmembers class * implements java.io.Serializable {static final long serialVersionUID;private static final java.io.ObjectStreamField[] serialPersistentFields;!static !transient <fields>;!private <fields>;!private <methods>;private void writeObject(java.io.ObjectOutputStream);private void readObject(java.io.ObjectInputStream);java.lang.Object writeReplace();java.lang.Object readResolve();}#保持枚举 enum 类不被混淆 如果混淆报错，建议直接使用上面的 -keepclassmembers class * implements java.io.Serializable即可-keepclassmembers enum * {public static **[] values();public static ** valueOf(java.lang.String);}#不混淆资源类-keepclassmembers class **.R$* {public static <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*-keep class sun.misc.Unsafe { *; }#keep model-keep class com.uyac.elegantlife.entity.**{*;}#keep 适配器-keep class com.uyac.elegantlife.adapter.**{*;}#高德定位混淆-keep class com.amap.api.location.**{*;}-keep class com.amap.api.fence.**{*;}-keep class com.autonavi.aps.amapapi.model.**{*;}#高德2D地图混淆-keep class com.amap.api.maps2d.**{*;}-keep class com.amap.api.mapcore2d.**{*;}#友盟混淆-dontwarn com.umeng.**-keep class com.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

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标签： 混淆 No such proguard androidstudio

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