Android - ProGuard modification causes the app to crash

Question

My app works fine when it's unsigned (debugging, etc..), also when exporting without ProGuard. But when I export it with ProGuard, When a piece of code containing native methods that I import is executing, it crashes.

What can I do? I guess that getting the stack trace, but I have no idea how to do that...

I have tried this: How do I obtain crash-data from my Android application? But no files actually appear where they should (I guess I have done that wrong too :()

The device MUST be saving crash stack traces SOMEWHERE. Where are they?

score 3 · Accepted Answer · answered Nov 15 '11 at 17:59

3

The proguard.cfg in your project has a collection of ignore rules for classes that shouldn't be obfuscated. You can essentially ignore everything and slowly obfuscate code each pass. Native methods, methods called by reflection-indirection shouldn't be obfuscated.

answered Nov 15 '11 at 17:59

Jeremy Edwards

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Thanks :) I have found that on my own a few hours ago but your post did summarize it for the following readers. – Jong Nov 15 '11 at 18:59

score 1 · Answer 2 · edited Jun 03 '13 at 13:50

1

If you are using Fragment class add the following line to your proguard.cfg file:

-keep public class * extends android.app.Fragment

edited Jun 03 '13 at 13:50

Czechnology

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answered Feb 04 '12 at 09:26

Murat

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Android - ProGuard modification causes the app to crash

2 Answers2