Android-混淆打包跟驗證

1.混淆：找到項目project.properties添加

proguard.config=proguard-project.txt

2.在proguard-project.txt文件中，添加（具體根據需要百度，google 建議不要混淆系統派生類 ，一般也把第3方jar包聲明成未被混淆）

-dontshrink
-dontpreverify 
-dontoptimize 
-dontusemixedcaseclassnames 
-flattenpackagehierarchy
-allowaccessmodification 
-printmapping map.txt 
-optimizationpasses 7 
-verbose 
-keepattributes Exceptions,InnerClasses
-dontskipnonpubliclibraryclasses 
-dontskipnonpubliclibraryclassmembers 
-ignorewarnings
-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 java.lang.Throwable {*;}
-keep public class * extends java.lang.Exception {*;}
-libraryjars libs/alipaysdk.jar
-libraryjars libs/alipaysecsdk.jar
-libraryjars libs/alipayutdid.jar
-libraryjars libs/jsoup-1.7.2.jar
-libraryjars libs/ZXing.jar
-libraryjars libs/fastjson-1.0.3.jar
-libraryjars libs/animations-2.4.0.jar
-libraryjars libs/android-support-v4.jar
-libraryjars libs/gson-2.2.4-javadoc.jar
-libraryjars libs/gson-2.2.4-sources.jar
-libraryjars libs/gson-2.2.4.jar
-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.*
-keepclasseswithmembernames class * {
  native <methods>;
}
-keepclasseswithmembers class * {
  public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
  public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
   public void *(android.view.View);
}
-keepclassmembers enum * {
  public static **[] values();
  public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
  public static final android.os.Parcelable$Creator *;
}
# adding this in to preserve line numbers so that the stack traces
# can be remapped
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable

3.打包生成正式環境apk

4.改成zip包後綴 取出文件classes.dex

5.利用dex2jar工具編譯

dex2jar .../../classes.dex

6.用jd-gui查看效果