smartfoxserver.com

Hi all,

Due to having a very large project, I need to use proguard to shrink things down.

Does anybody have an example of a working proguard config for an android app? I would be very grateful.

Specifically, I am getting this error:
E/AndroidRuntime(3268): java.lang.NoClassDefFoundError: org.slf4j.impl.StaticLoggerBinder

I have tried fixing it with this line in my proguard:
-keep class org.slf4j.** { *; }

But I still get the same error. I am thinking the class is called indirectly through an implementation or something.

Any help with proguard examples would be fantastic, thanks.

The problem with shrinking support libraries is that you don't know what they do at runtime and failure may pop up at any time.
I wouldn't recommend it.

Anything that uses reflection or dynamic class loading (as slf4j) may fail at some point but you'll never know unless you thoroughly test your application. It's a little bit of a crapshoot, imho

Thanks Lapo. I wish there were a way to tell proguard to keep everything in the SFS support library. If I can't find a way to force it, I guess I will have to turn parts of my code into plugins with multiple dex files.

Turns out my problems were from gradle not packing a jar.

To be safe in proguard, I ended up just listing classes to exclude (big ones that were part of certain jars but I didn't use). That way I know all SFS code makes it in. Did something like this:

-keep class !com.google.android.gms.wallet.**,!com.google.android.gms.maps.** { *; }

I have this problem to

When i build my project in android i get some errors about sfs.
How can i exclude sfs libraries from proguard?

Thanks

Hi,

I did many searches to solve the problem, but finally i solved the that myself:

-keep class org.python.*{ *; }
-dontwarn org.python.**
-keep class com.smartfoxserver.*{ *; }
-dontwarn com.smartfoxserver.**
-keep class org.jaxen.*{ *; }
-dontwarn org.jaxen.**
-keep class java.rmi.*{ *; }
-dontwarn java.rmi.**
-keep class org.jboss.*{ *; }
-dontwarn org.jboss.**

just use above lines in your proguard
Thanks.