我刚刚使用Gradle构建了一个APK(ProGuard 4.9并签名).当我启动应用程序时,它崩溃了这个错误:
E/AndroidRuntime( 8662): java.lang.AssertionError: impossible E/AndroidRuntime( 8662): at java.lang.Enum$1.create(Enum.java:44) E/AndroidRuntime( 8662): at java.lang.Enum$1.create(Enum.java:35) E/AndroidRuntime( 8662): at libcore.util.BasicLruCache.get(BasicLruCache.java:54) E/AndroidRuntime( 8662): at java.lang.Enum.getSharedConstants(Enum.java:210) E/AndroidRuntime( 8662): at java.lang.Enum.valueOf(Enum.java:190) E/AndroidRuntime( 8662): at kr.infli.s.Z(Inflikr.java:390) E/AndroidRuntime( 8662): at kr.infli.a.ev(Inflikr.java:409) E/AndroidRuntime( 8662): at kr.infli.activity.InflikrActivity.onResume(InflikrActivity.java:231) E/AndroidRuntime( 8662): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1192) E/AndroidRuntime( 8662): at android.app.Activity.performResume(Activity.java:5310) E/AndroidRuntime( 8662): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2778) E/AndroidRuntime( 8662): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2817) E/AndroidRuntime( 8662): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2250) E/AndroidRuntime( 8662): at android.app.ActivityThread.access$800(ActivityThread.java:135) E/AndroidRuntime( 8662): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) E/AndroidRuntime( 8662): at android.os.Handler.dispatchMessage(Handler.java:102) E/AndroidRuntime( 8662): at android.os.Looper.loop(Looper.java:136) E/AndroidRuntime( 8662): at android.app.ActivityThread.main(ActivityThread.java:5017) E/AndroidRuntime( 8662): at java.lang.reflect.Method.invoke(Native Method) E/AndroidRuntime( 8662): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) E/AndroidRuntime( 8662): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) E/AndroidRuntime( 8662): Caused by: java.lang.NoSuchMethodException: values [] E/AndroidRuntime( 8662): at java.lang.Class.getMethod(Class.java:661) E/AndroidRuntime( 8662): at java.lang.Class.getDeclaredMethod(Class.java:623) E/AndroidRuntime( 8662): at java.lang.Enum$1.create(Enum.java:41) E/AndroidRuntime( 8662): ... 20 more
看起来不应该发生此错误:https://android.googlesource.com/platform/libcore/+/9edf43dfcc35c761d97eb9156ac4254152ddbc55/libdvm/src/main/java/java/lang/Enum.java
我的build.gradle包含:
buildTypes { release { runProguard true proguardFile file('./proguard-project.txt') signingConfig signingConfigs.release } }
我的proguard-project.txt包含
-useuniqueclassmembernames -keepattributes SourceFile,LineNumberTable + a bunch of keep class, dontnote, dontwarn,...
当我从build.gradle中删除ProGuard时,它不会崩溃.
当我从Ant构建中使用ProGuard时它起作用了(我最近迁移到了Gradle).
Gradle + ProGuard有任何已知问题吗?
谢谢
你必须告诉ProGuard保留一些enum
方法.
Android SDK工具使用此ProGuard配置来实现它:
# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations -keepclassmembers enum * { public static **[] values(); public static ** valueOf(java.lang.String); }
您可以将以上规则添加到ProGuard配置中,也可以(我更喜欢)包含默认的Android规则:
minifyEnabled true proguardFile getDefaultProguardFile('proguard-android.txt') proguardFile file('./proguard-project.txt')