android 代码混淆后找不到Activity

Question

跳转到mainactivity时空指针？

-keepattributes Annotation
-keep class * extends java.lang.annotation.Annotation { ; }
-keepattributes Signature
-keep public class * extends android.app.Fragment
-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 * extends android.support.v4.*
-keep public class * extends android.support.v7.**
-keep public class * extends java.lang.*
-keep public class * extends android.support.v4.app.Fragment

这些都是保留了的 结果报错

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.application.app.Test/com.application.app.MainActivity}: java.lang.NullPointerExceptio请教一下这是什么原因

Answer 1

application.xml里面加了mainactivity的指针吗