為瞭保護代碼被反編譯,android引入瞭混淆代碼的概念
1.設置混淆
在工程下找到project.properties文件
在文件中加入proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt這個是系統的
也可以用自己的混淆文件(這樣就可以配置一些自己的東西),去sdk.dir}/tools/proguard/ 下復制proguard-android.txt文件到本地工程中
然後設置成proguard.config=proguard-android.txt
[java] #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
proguard.config=proguard-android.txt
# Project target.
target=android-17
#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
proguard.config=proguard-android.txt
# Project target.
target=android-17
2.配置自己的混淆文件proguard-android.txt
為瞭解決第三方包不被混淆,第三方包在混淆後,運行的時候會掛掉。我的錯誤是java.lang.ExceptionInInitializerError
[java] E/AndroidRuntime( 9608): java.lang.ExceptionInInitializerError
E/AndroidRuntime( 9608): at a.a.b.f.<init>(Unknown Source)
E/AndroidRuntime( 9608): at a.a.b.e.<init>(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.dg.b(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.dg.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.b.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.ad.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.a.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.c.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.c.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.h.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.h.onPostExecute(Unknown Source)
E/AndroidRuntime( 9608): at android.os.AsyncTask.finish(AsyncTask.java:631)
E/AndroidRuntime( 9608): at android.os.AsyncTask.access$600(AsyncTask.java:177)
E/AndroidRuntime( 9608): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
E/AndroidRuntime( 9608): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 9608): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 9608): at android.app.ActivityThread.main(ActivityThread.java:5041)
E/AndroidRuntime( 9608): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 9608): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 9608): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
E/AndroidRuntime( 9608): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
E/AndroidRuntime( 9608): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 9608): Caused by: java.lang.ExceptionInInitializerError
E/AndroidRuntime( 9608): at a.a.b.l.<clinit>(Unknown Source)
E/AndroidRuntime( 9608): … 22 more
E/AndroidRuntime( 9608): java.lang.ExceptionInInitializerError
E/AndroidRuntime( 9608): at a.a.b.f.<init>(Unknown Source)
E/AndroidRuntime( 9608): at a.a.b.e.<init>(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.dg.b(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.dg.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.b.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.c.ad.a(Unknown Source)
E/AndroidRuntime( 9608): at a.a.a.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.c.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.c.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.h.a(Unknown Source)
E/AndroidRuntime( 9608): at com.petsea.h.onPostExecute(Unknown Source)
E/AndroidRuntime( 9608): at android.os.AsyncTask.finish(AsyncTask.java:631)
E/AndroidRuntime( 9608): at android.os.AsyncTask.access$600(AsyncTask.java:177)
E/AndroidRuntime( 9608): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
E/AndroidRuntime( 9608): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime( 9608): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime( 9608): at android.app.ActivityThread.main(ActivityThread.java:5041)
E/AndroidRuntime( 9608): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 9608): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime( 9608): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
E/AndroidRuntime( 9608): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
E/AndroidRuntime( 9608): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 9608): Caused by: java.lang.ExceptionInInitializerError
E/AndroidRuntime( 9608): at a.a.b.l.<clinit>(Unknown Source)
E/AndroidRuntime( 9608): … 22 more
最終我通過 加LOG的調試方法定位到是由於第三方jar包被混淆後的原因導致的。
3解決方法:
在proguard-android.txt文件最後加入瞭-keep class org.jsoup.**這樣一句代碼,就是保持這個類不被混淆
附上proguard-android.txt源文件
[html] # This is a configuration file for ProGuard.
# https://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 https://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
native <methods>;
}
# keep setters in Views so that animations can still work.
# see https://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 https://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version. We know about them, and they are safe.
-dontwarn android.support.**
-keep class org.jsoup.**
# This is a configuration file for ProGuard.
# https://proguard.sourceforge.net/index.html#manual/usage.html
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose
# Optimization is turned off by default. Dex does not like code run
# through the ProGuard optimize and preverify steps (and performs some
# of these optimizations on its own).
-dontoptimize
-dontpreverify
# Note that if you want to enable optimization, you cannot just
# include optimization flags in your own project configuration file;
# instead you will need to point to the
# "proguard-android-optimize.txt" file instead of this one from your
# project.properties file.
-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService
# For native methods, see https://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
native <methods>;
}
# keep setters in Views so that animations can still work.
# see https://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
void set*(***);
*** get*();
}
# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
# For enumeration classes, see https://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
# 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.**
-keep class org.jsoup.**