1

当我的 android 应用程序启动时引发以下异常；

can't instantiate class com.project.modules.ClientServicesModule; no empty constructor

我的模块类如下所示；

public class ClientServicesModule
    extends AbstractModule
{

    private Context context;

    public ClientServicesModule(Context context)
    {
        this.context = context;
    }


    @Override
    protected void configure(){

       ....

      bind(new TypeLiteral<Dao<City, Integer>>()
        {
        }).toProvider(new DaoProvider<City, Integer>(OpenHelperManager.getHelper(context, DatabaseHelper.class).getConnectionSource(), City.class))
            .in(Singleton.class);

       ...
       }
}

我的 Proguard 文件：

-target 1.6

-verbose
-dump ../bin/class_files.txt
-printseeds ../bin/seeds.txt
-printusage ../bin/unused.txt
-printmapping ../bin/mapping.txt

-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-ignorewarnings
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable,*Annotation*,Signature

-dontwarn org.apache.**
-dontwarn org.joda.**
-dontwarn roboguice.**
-dontwarn com.google.**
-dontwarn org.slf4j.**
-dontwarn twitter.**
-dontnote
-dontwarn **CompatHoneycomb

# roboguice's jar has testing classes in it which don't resolve because the Android testing classes aren't available for non-testing
-dontwarn roboguice.test.RoboActivityUnitTestCase
-dontwarn roboguice.test.RoboUnitTestCase

-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.app.Fragment
-keep public class * extends android.support.v4.app.Fragment
-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 com.google.inject.AbstractModule
-keep public class com.android.vending.licensing.ILicensingService
-keep class com.google.inject.** { *; }
-keep class javax.inject.** { *; }
-keep class javax.annotation.** { *; }
-keep class roboguice.** { *; }

-keepclasseswithmembers 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 * implements android.os.Parcelable { static android.os.Parcelable$Creator *; }
-keepclassmembers class **.R$* { public static <fields>; }
-keepclasseswithmembernames class * { native <methods>; }
-keepclassmembers enum * {
    public static **[] values();
    public static ** valueOf(java.lang.String);
}
-keepclassmembers class * extends android.app.Activity { 
    public void *(android.view.View); 
}
-keepclassmembers class * { 
    @com.google.inject.Inject <init>(...);
    @com.google.inject.Inject <fields>;
    @javax.annotation.Nullable <fields>;
}
-keepclassmembers class * {
    void *(net.eworldui.videouploader.events.*);
}
-keepclassmembers class * {
    void *(roboguice.activity.event.*);
}

如果我添加一个空的构造函数，我的 ProGuard 配置可以工作，但是 dao 不会加载，因为 null 被传递到数据库帮助程序中。

如果我从 pom.xml 中删除 ProGuard 步骤，一切都会按预期工作。

问题是如何启用 proguard 以便模块类可以在传入的上下文中启动。

谢谢你。

4

1 回答 1

2

尝试将以下行添加到您的 Proguard.config：

-keep public class * extends com.project.modules.ClientServicesModule { 
    <fields>;
    <methods>;
 }

看看错误是否仍然存在

编辑：

您可以通过定义来保留整个命名空间：

-keep class com.project.modules.** {*;}

如果可行，您可以尝试排除之后不需要的其他人。也看看我的第一次编辑

于 2013-02-15T16:34:04.633 回答