[Android-development] proguard

[Philippe Lelong]

Hello again

Back on that one..

Finally got to have proguard running during qtcreator build. But as 
expected I have now problems at runtime, with messages such as

W/System.err( 7534): java.lang.NoSuchMethodException: loadApplication 
[class android.app.Activity, class java.lang.ClassLoader, class 
android.os.Bundle]

I tried to guess what classes I should exclude in proguard-project.txt 
but no luck so far.

Anyone has an idea of proguard configuration needed for a qt-app to run?

Thanks
Philippe Lelong

Le 18-02-2015 08:26, Harri Pasanen a écrit :
> It probably cannot obfuscate everything because it needs it for
> reflection to find the methods at runtime.
> In particular, I would not expect anything in .so to be obfuscated.
> 
> ... educated guessing from my part continues...
> 
> Harri
> 
> On 18/02/2015 06:39, maitai at virtual-winds.org wrote:
>> Thanks Harri for replying
>> 
>> I can see in the .so from the apk that all labels, class names etc are
>> not obfuscated, so proguard is not called.
>> 
>> Do you know if project.properties is generated through a template or
>> something similar I could modify?
>> 
>> Philippe.
>> 
>> Le 17-02-2015 21:47, Harri Pasanen a écrit :
>>> If you look at compile output in Qt creator, I think you'll see some
>>> proguard commands go by...
>>> This is from memory, so I could be wrong.
>>> 
>>> But obviously proguard only touches the java parts.
>>> 
>>> If you explode the generated .apk and run strings on select pieces, 
>>> you
>>> should see either proguard mangled strings or something familiar.
>>> 
>>> My fast 2 cents without actually trying any of the above...
>>> 
>>> Harri
>>> 
>>> On 17/02/2015 19:08, maitai at virtual-winds.org wrote:
>>>> Hi,
>>>> 
>>>> Back on this after many hours of research... still no solution...
>>>> 
>>>> I can see that project.properties in android build directory ask to
>>>> uncomment a line to activate proguard obfuscating but since this 
>>>> file
>>>> is
>>>> regenerated at each build (by qmake as it seems?), the cbanges are
>>>> lost
>>>> of course.
>>>> 
>>>> Is there a master file somewhere I am missing or an option for that?
>>>> 
>>>> Any tip welcomed..
>>>> 
>>>> Thanks
>>>> Philippe
>>>> 
>>>> Le 16-02-2015 16:38, maitai at virtual-winds.org a écrit :
>>>>> Hello again,
>>>>> 
>>>>> If I want to obfuscate and/or optimize apk with proguard, is it
>>>>> something I can configure from qt-creator somehow? Or maybe it's 
>>>>> done
>>>>> already automatically from the SDK?
>>>>> 
>>>>> At build time in creator I can see:
>>>>> 
>>>>> ...
>>>>> -release-obfuscation-check:
>>>>>         [echo] proguard.config is ${proguard.config}
>>>>> 
>>>>> -pre-build:
>>>>> 
>>>>> -check-env:
>>>>>     [checkenv] Android SDK Tools Revision 24.0.2
>>>>> ...
>>>>> 
>>>>> But it's not clear to me if proguard is actually called or not, and
>>>>> eventually how if I can change options.
>>>>> 
>>>>> Thanks
>>>>> Philippe Lelong
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