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  1. #1
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    J2ME Polish or LWUIT or what for commercial J2ME software?

    Hi,

    when talking about device fragmentation or support/adherence to MIDP, there's nothing like real experience on multiple devices.

    I have experience on just a few of them, on a "controlled environment"...and that's enough to know handling most MIDP 2 devices in market will be huge mess...

    I would like to know, in your opinion, how J2ME Polish and (put your toolkit name here) compare regarding:

    a) LWUIT is newer than Polish. Is it stable enough for production?
    b) How they compare in their footprints? and in speed on the device?
    c) Other than UI, how important are the extra features in Polish?
    d) In both cases, they have real support on all MIDP 2.0 devices?
    e) How popular are both?
    f) Other suggestions or toolkits?

    Thanks in advance!

  2. #2
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    for f) http://wiki.forum.nokia.com/index.ph..._UI_Frameworks

    Others with real experience on these toolkits should answer the other questions you have...

    Hartti

  3. #3
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    b) Foorprints wouldnt know, only thing I do know is that LWUIT is very sluggish on S60 Nokia's whilst it runs decently on the S40 platform...
    c) Well, u have the device database with which u actually can compile a different JAR for every single mobile or mobile family or screen size etc... it keeps account of the mobile's possibilities (think in terms of supported API's)... So it definitely adresses somewhat the device fragmentation..
    Personally I have had quite some problems installing it and getting it to work, documentation about installation is not op to date, didnt get it to work at all with netbeans 6.0 +6 Win Vista combo...
    f) Hartti Rulez?!
    Last edited by Tiger79; 2008-10-14 at 08:40.

  4. #4
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    f) hehheh...Don't ask me to code anything though :-)

    Hartti

  5. #5
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    Thanks you all!

    Yes, I've read a lot about all those framework...but, you know, one thing is what websites say, and other is what happens in the real world

    I think the challenging issue is to know it is really supported in, say, 500 different phones models, as it will face in real market. And that's something someone may know if posted one application to the real world and received feedback for its users...

    I'm looking for some feedback on experience using one of those toolkits in that environment.

    Thanks,
    Sebastian

  6. #6
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    think polish makes it easier to program in drag and drop fashion which is difficult in lwuit

  7. #7
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    true,
    but for most programmers functionality is more important than easy-ness... so if both have the same set of tools/classes/possibilities u might want to go with the easiest but afaik the graphical possibilities of both sets are quite different...

  8. #8
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    Hi SebastianM

    I'm quite late to this discussion (and your other one on sonyericsson's forum), but hopefully it might help others.

    A few months ago I was also faced with the choice - J2ME Polish or LWUIT. After reviewing both and looking at all the forums I could find on it, I decided on LWUIT. The problem was the project I was working on needed to work on the widest range of handsets possible, including low-end ones. After encountering a few problems on some handsets I tested, we were not feeling comfortable enough to release the app to the public.

    So I finally settled on a different library, called J2ME GUI. You can download it from http://www.garcer.com/. It worked great in our tests and I'm in the lengthy process of porting our project to use J2ME GUI instead.

  9. #9
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    As for b) and Tiger79's comment: the speed difference is (AFAIK) due to the VM implementation. S40 employs ARM's capability to run bytecode directly (Jazelle). Poor old S60 doesn't have this "booster" in use.

  10. #10
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    owh that could be the reason... still, unfortunately, thats not something we can solve as developers so the end result is still that it's sluggish on s60 and you cannot do much about it, try to explain that to your users :P
    Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them.

  11. #11
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    Re: J2ME Polish or LWUIT or what for commercial J2ME software?

    Use LWUIT for S40 and go native on S60 for best results and performance.
    thanks,
    ~Amitabh
    (Champion of the Month -Aug'13)
    Follow me on my blog for Innovative Mobile Apps

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