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  1. #1
    Regular Contributor
    Join Date
    Dec 2008
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    124

    Can i develop Midlet app to support all platform?

    Hi all!

    Does it possible to develop Midlet application to support all platform. All platform i mean support all phone device(like Nokia, Motorola, SonyEricsson,...). Please help me with that.

    Thanks,,
    Raksa

  2. #2
    Super Contributor
    Join Date
    Mar 2003
    Location
    Finland
    Posts
    9,569

    Re: Can i develop Midlet app to support all platform?

    In theory: Yes.

    In practice: No. Different manufacturers use different Java VMs, or implement different JSRs in a different way.

    Even Sun has stopped propagating the "write once, run anywhere" myth regarding Java, I think.

  3. #3
    Regular Contributor
    Join Date
    Dec 2008
    Posts
    106

    Re: Can i develop Midlet app to support all platform?

    It all depends on what you are going to develop. Some application can appear differently on different phones. You need to keep in mind screen resolution, supported jsr's and specific phone bugs.

  4. #4
    Nokia Developer Expert
    Join Date
    May 2007
    Location
    Mexico D.F
    Posts
    351

    Re: Can i develop Midlet app to support all platform?

    What exactly does your app?
    :Ruben

  5. #5
    Regular Contributor
    Join Date
    Dec 2008
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    124

    Re: Can i develop Midlet app to support all platform?

    Hi!
    I currently do sms system in my Lanuauge.

    Thanks,,
    Raksa

  6. #6
    Registered User
    Join Date
    Sep 2007
    Location
    Bangalore
    Posts
    868

    Re: Can i develop Midlet app to support all platform?

    Hi ,
    If you are not using any images in your applications like splash screen list images etc ... You can make it a single jar and depending on the the devise get the screen resolution behave like that. If you are using images also you can do but you have to scale the images and do . But images scaling will be done at run time , the scaled images will not good. Take your decision and go ahead .

  7. #7
    Registered User
    Join Date
    Mar 2008
    Posts
    16

    Re: Can i develop Midlet app to support all platform?

    The phone's horse power is also in concern. On most phone specs, the type of cpu and cpu's clock rate are not specified, and you may have bad surprises when testing on real phones. Most java emulators are not reliable regarding the device you simulate.

    For instance, Motorola uses Sun's JVM in its SDK. You choose the SLVR L9 phone, a heap size of 600KB. Everything runs fine, but with the look and feel of Sun's emulator screen, whenever you chose the skin of the SLVR L9 phone. Now you test it on the real phone (1 MB of heap size). It runs DAMN slow, comes quickly out of memory. Then you spend hours and days to optimize your code and make intensive calls on Runtime.getRuntime().gc(), in vain. Desparating!

    /Lapi.

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