Question

我尝试使用sbt和maven for android-scala，我非常喜欢maven做整个发布的事情（ProGuard-ing scala standar lib等）。但是我希望在我的IDE中开发轻量级重编译循环 - IntelliJ IDEA。

问题是scala文件无法编译。我像这样配置了我的项目：

创建了android项目
添加了scala facet
将scala编译器设置为全局
添加了对scala库（全局）的依赖，并将其设置为“提供”

我添加了一个scala对象并从java Activity中引用它。 ClassNotFoundException并强制关闭。它编译得很干净（而且相当狡猾）。

我以相同的方式创建了一个普通的旧java项目并使用相同的全局库并且它工作正常。对apk的检查显示它包含scala源（！）文件。所以显然没有事件尝试编译。

哦，我的手机已经预装了来自Play商店的scala安装程序。

我使用IntelliJ IDEA 11社区。我几个月前第一次尝试这个并且它有效。

更新它适用于其他计算机。

Answer 1

您可能需要摆弄“proguard.cfg”文件。

这是我使用Scala 2.10和Android使用IntelliJ IDE的项目中的一个（更改第一个选项以匹配您的包名称）：

##
## Keep classes of named package
##
-keep public class **.keithpinson.**
## ## ## ## ## ## ## ## ## ## ## ## ##


##
## RELEASE ONLY
##
##-optimizationpasses 3
##-overloadaggressively
##-repackageclasses ''
##-allowaccessmodification
##-optimizations !code/simplification/arithmetic
##         ,!field/*,!class/merging/*,!code/allocation/variable
##-keepattributes *Annotation*

##
## DEBUG ONLY
##
-dontobfuscate
-dontoptimize
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,*Annotation*,EnclosingMethod
## -printmapping mapping.txt


##
## ALL VERSIONS
##
-dontpreverify
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontusemixedcaseclassnames


## Keep Limited Serializable Capability
##-keepclassmembers class * implements java.io.Serializable {
##    static long serialVersionUID;
##    private void writeObject(java.io.ObjectOutputStream);
##    private void readObject(java.io.ObjectInputStream);
##    java.lang.Object writeReplace();
##    java.lang.Object readResolve();
##}

## Keep All Serializable Capability
##-keep class * implements java.io.Serializable { *; }"





##
## ANDROID SETTINGS
##
-dontwarn com.google.common.collect.MinMaxPriorityQueue
-dontwarn com.google.common.primitives.UnsignedBytes$*

-dontnote android.app.backup.BackupAgentHelper
-dontnote com.android.vending.licensing.ILicensingService

-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

-keepclasseswithmembernames class * {
    native <methods>;
}

-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*(...);
}

-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 *;
}

# R classes may be built out of sequence so don't proguard them
-keep public class **.R { *; }
-keepclassmembers class **.R$* {
    public static <fields>;
}

# Removes all calls to Log. Delete the methods you want to keep.
-assumenosideeffects class android.util.Log {
    public static int v(...);
    #public static int d(...);
    public static int i(...);
    #public static int w(...);
    #public static int e(...);
    #public static int wtf(...);
}

## Fixes ==> Warning: ... can't find referenced class javax.xml.stream.events.XMLEvent
## -dontwarn javax.xml.**


## If using Guice
## -keep class com.google.common.base.Finalizable* {
##   <fields>;
##   <methods>;
## }
##
## -keep class com.google.common.base.internal.Finalizer {
##   <fields>;
##   <methods>;
## }


##
## SCALA SETTINGS
##
-dontwarn **$$anonfun$*
-dontwarn scala.android.**
-dontwarn scala.beans.ScalaBeanInfo
-dontwarn scala.collection.generic.GenTraversableFactory
-dontwarn scala.collection.immutable.RedBlack$Empty
-dontwarn scala.concurrent.forkjoin.**
-dontwarn scala.reflect.**
-dontwarn scala.sys.process.**
-dontwarn scala.tools.**,plugintemplate.**


#(org.xml.sax.EntityResolver)Class.forName(variable).newInstance()
-dontnote org.xml.sax.EntityResolver

#(org.apache.james.mime4j.storage.StorageProvider)Class.forName(variable).newInstance()
-dontnote org.apache.james.mime4j.storage.DefaultStorageProvider

-dontnote scala.android.app.Activity


## Keep All Scala Classes
##-keep class scala.** { *; }

-keep class scala.android.package**
-keep class * extends scala.android.app.Activity

## Fixes ==> Warning: ... can't find referenced class sun.misc.Unsafe
-libraryjars libs/jsr305-2.0.1.jar
-dontwarn sun.misc.Unsafe


-keep class * extends scala.runtime.MethodCache {
    public <methods>;
}

-keepclassmembers class * {
    ** MODULE$;
}

-keepclassmembernames class scala.concurrent.forkjoin.ForkJoinPool {
    long eventCount;
    int workerCounts;
    int runControl;
    scala.concurrent.forkjoin.ForkJoinPool$WaitQueueNode syncStack;
    scala.concurrent.forkjoin.ForkJoinPool$WaitQueueNode spareStack;
}

-keepclassmembernames class scala.concurrent.forkjoin.ForkJoinWorkerThread {
    int base;
    int sp;
    int runState;
}

-keepclassmembernames class scala.concurrent.forkjoin.ForkJoinTask {
    int status;
}

-keepclassmembernames class scala.concurrent.forkjoin.LinkedTransferQueue {
    scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference head;
    scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference tail;
    scala.concurrent.forkjoin.LinkedTransferQueue$PaddedAtomicReference cleanMe;
}

Answer 2

似乎想法会使用系统proguard配置来优化jar，当取消选中Android face上的Run ProGuard时，简单的取消选中它似乎不起作用，所以你需要为proguard使用一些自定义配置，试试这个，它适用于我，请用你的包装替换你的包裹

当然，你可以试试Keith的配置。

-dontobfuscate
-dontoptimize
-dontpreverify

-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers

-dontwarn

#scala.Enumeration accesses a field 'MODULE$' dynamically
-dontnote scala.Enumeration

#(org.xml.sax.EntityResolver)Class.forName(variable).newInstance()
-dontnote org.xml.sax.EntityResolver

#(org.apache.james.mime4j.storage.StorageProvider)Class.forName(variable).newInstance()
-dontnote org.apache.james.mime4j.storage.DefaultStorageProvider

-keepattributes Exceptions,InnerClasses,Signature,Deprecated,
            SourceFile,LineNumberTable,Annotation,EnclosingMethod

-keep public class REPLACE WITH YOUR PACKAGE

https://plus.google.com/106066742926663025812/posts/41XoDPeDEqc

使用IntelliJ Idea ClassNotFoundException的Android上的Scala

2 个答案: