Crazy Coder
Crazy Coder

Reputation: 508

Enabling Proguard Throws Exception

I have added some external libs in my project and it works fine, but when I enabled proguard it throws exception every time. I have tried to exclude libs from proguard but my code not working.

gradle:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.google.code.gson:gson:2.3'
    compile 'com.android.support:support-v4:21.0.3'
}

proguard-rules.pro

-keep class android.support.v7.** { *; }
-keep interface android.support.v7.** { *; }
-keep enum android.support.v7.** { *; }

-keep class android.support.v4.** { *; }
-keep interface android.support.v4.** { *; }
-keep enum android.support.v4.** { *; }

-keep class com.google.** { *; }
-keep interface com.google.** { *; }
-keep enum com.google.** { *; }

Error

java.lang.RuntimeException: Unable to start activity ComponentInfo{in.zeitech.appprotector/in.zeitech.appprotector.activities.LockAppActivity}: java.lang.NullPointerException
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1970)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
            at android.app.ActivityThread.access$600(ActivityThread.java:128)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4517)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NullPointerException
            at in.zeitech.appprotector.activities.LockAppActivity.onCreate(Unknown Source)
            at android.app.Activity.performCreate(Activity.java:4470)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1053)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1934)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1995)
            at android.app.ActivityThread.access$600(ActivityThread.java:128)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1161)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4517)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
            at dalvik.system.NativeStart.main(Native Method)

Upvotes: 0

Views: 1028

Answers (1)

Pratik Popat
Pratik Popat

Reputation: 2999

I am using gson lib and tried this line in proguard and its works.

-keepattributes Signature

Upvotes: 2

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