Re: Kawa on Android - problems with kawa.standard.Scheme

[Peter Feigl <craven at gmx dot net>]

On Wed, Mar 02, 2011 at 12:39:35AM -0800, Per Bothner wrote:
> On 03/01/2011 05:33 PM, Per Bothner wrote:
> >The problem appears to be the getContextClassLoader in
> >gnu/bytecode/ObjectType.java. If you get rid of the
> >special case for Android, then it should work:
> >So the question is why did I make this special case for Android
> >in the first place? Perhaps earlier versions of Android needed it?
> 
> I checked in this fix.
> 
> I wasn't able to verify whether this fixes breaks older versions of
> Android - I kept getting a VerifyError, so I dropped it for now.
> 
> I also changed LangObjType.java so it creates the PrimProcedure
> objects (including the one that causes Path to be loaded) as needed,
> rather than at startup time.  Maybe later I'll add a "cache" - though
> perhaps waiting until we can use Java7 MethodHandles might make more
> sense.
> 
> Note either of the two fixes (either ObjectType#getContextClassLoader
> or to LangObjType.java) should fix the problem, but both changes
> seemed reasonable.  Hopefully the LangObjType.java change will
> reduce the likelihood of a problem with older Android versions.
> 
> (If someone wants to test older Android versions, that would
> be much appreciated.)

Thanks very much for this, I got things working beautifully now. 
Is there a way to avoid generating the following classes? 
 gnu/kawa/models/Box
 gnu/kawa/models/Button
 gnu/kawa/models/Display
 gnu/kawa/models/DrawImage
 gnu/kawa/models/DrawShape
 gnu/kawa/models/FillShape
 gnu/kawa/models/Paintable
 gnu/kawa/models/Spacer
 gnu/kawa/models/WithComposite
 gnu/kawa/models/WithPaint
 gnu/kawa/models/WithTransform
 gnu/kawa/slib/gui
 gnu/kawa/models/Column
 gnu/kawa/models/Label
 gnu/kawa/models/MenuItem
 gnu/kawa/models/Row
 gnu/kawa/models/Text
 gnu/kawa/models/Viewable
 gnu/kawa/models/Window
 gnu/kawa/models/Model
 gnu/kawa/models/ModelListener
 gnu/kawa/models/WeakListener

These have direct or indirect dependencies on awt/swt, and proguard
cannot resolve these when deploying for android. I removed them from
the jar file, now I can generated basic apk packages that have 150k
with kawa! This is really great :)

I'll share my setup as soon as I get things cleaned up a bit!

Thanks again for making Kawa this great alternative for targetting the
JVM.

Peter

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