androidstudio初次成功混淆遇到的問題

今天閒，所以想把項目加入混淆，可以減小apk體積，也可以優化項目。

本來以前也加入過，但是因為總是報錯所以不了了之。

androidstudio 混淆

首先需要在項目的build.gradle文件中加入如下代碼。

androidstudio都有一個默認混淆的文件，沒有也可以自己建一個。

 

保證有文件，文件名一樣就好了，名字其實可以修改。

 

其實開始也啥都不知道，就再網上慢慢搜，一遍一遍的試。

 

在這裡說明幾個語法

前面加“#”代表注釋，混淆語句前面都有“-

保持某個類不混淆 -keep class com.uyac.test.MainActivity

保持某個包下面的類不混淆 -keep class com.uyac.test **

保持某個包下面的類還有類中代碼不混淆 -keep class com.uyac.test**{ *; }

保持繼承activity的類 -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

保持資源類

-keepclassmembers class **.R$* {

    public static ;
}

 

 

....

 

這樣之後，就要去混淆文件中去加混淆代碼了。（混淆代碼在文章末尾貼出），我直接說遇到的問題。

 

打包時遇到了這樣的錯誤

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)

 

這是因為我混淆文件裡面有混淆-libraryjarslibs/umeng-analytics-v5.2.4.jar

因為libs下沒有這個文件！我的umeng-analytics 版本是v5.6.4 所以編譯沒通過。

改成-libraryjarslibs/umeng-analytics-v5.6.4.jar 就沒問題了

 

 

然後我再次打包，打包是可以成功的，只是打開app在歡迎頁就崩了。

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.

 

報錯如上，（即使打包之後，只要代碼中有輸出log，也是可以看到的，錯誤信息也有，可以用於打包後調試，有更好的方法歡迎討論）

 

這種問題就不好解決了，看樣子是一個類部類，而正好歡迎界面過後要啟動的界面適配器裡面有類部類，所以我就keep了我的適配器包。然後不報錯了。

 

但是還沒有結束

第三方登錄，和分享功能不能用！！！因為用的友盟分享和第三方登錄。

 

#友盟混淆

-keep class com.umeng.**

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

這樣看來，混淆其實也很簡單，最主要是找到問題，解決問題。

 

 

最後獻上混淆源碼

 

#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
  #不做預校驗
 -dontpreverify
  #混淆時是否記錄日志
 -verbose
  # 混淆時所采用的算法
 -optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
  #忽略警告
 -ignorewarning


  #apk 包內所有 class 的內部結構
  -dump class_files.txt
  #未混淆的類和成員
  -printseeds seeds.txt
  #列出從 apk 中刪除的代碼
  -printusage unused.txt
  #混淆前後的映射
  -printmapping mapping.txt


 # 保持哪些類不被混淆 google默認 不混淆 Activity 、Service ... 類的子類
 #混淆了可能編譯不通過
 -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

 #申明第三方庫，以免出現調用錯誤
 -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


  #保護注解
  -keepattributes *Annotation*

 #如果有引用v4包可以添加下面這行
 -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 (android.content.Context);
     public (android.content.Context, android.util.AttributeSet);
     public (android.content.Context, android.util.AttributeSet, int);
     public void set*(...);
 }

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

 # Keep names - Native method names. Keep all native class/method names.
 -keepclasseswithmembers,allowshrinking class * {
     native ;
 }

 #保持自定義控件類不被混淆
 -keepclasseswithmembers class * {
     public (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);
 }

 #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 不被混淆並且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 ;
     !private ;
     !private ;
     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 如果混淆報錯，建議直接使用上面的 -keepclassmembers class * implements java.io.Serializable即可
 -keepclassmembers enum * {
     public static **[] values();
     public static ** valueOf(java.lang.String);
 }

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

  #不混淆H5交互
-keepattributes *JavascriptInterface*
 #ClassName是類名，H5_Object是與javascript相交互的object，建議以內部類形式書寫
-keepclassmembers   class **.ClassName$H5_Object{
                 *;
  }

#如果使用有Gson，則添加以下配置
 -keepattributes Signature
 -keepattributes *Annotation*
 -keep class sun.misc.Unsafe { *; }

#keep model
-keep class com.uyac.elegantlife.entity.**{*;}

#keep 適配器
-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地圖混淆
-keep class com.amap.api.maps2d.**{*;}

-keep class com.amap.api.mapcore2d.**{*;}

#友盟混淆
-dontwarn com.umeng.**
-keep class com.umeng*.** {*; }


 #三星應用市場需要添加:sdk-v1.0.0.jar,look-v1.0.1.jar
 #-libraryjars libs/sdk-v1.0.0.jar
 #-libraryjars libs/look-v1.0.1.jar