how to convert j2me running lwuit to android?

Asked 13/9, 2011 at 12:5 Answered 13/9, 2011 at 12:13

Solved java android java-me lwuit midlet

How can i convert a J2ME application which is using lwuit library to an android apk ?

I tried to convert using mircoemulator but when I start the application it shows error and exits.

Grouping answered 13/9, 2011 at 12:5 Comment(0)

Read this article, LWUIT for Android. Here clearly telling about How to do LWUIT with Android. Follow the stpes carefully and change the your MIDlet code. Just checkout the LWUIT-Incubator repository and use this for android development with LWUIT. Also read the README_Android.txt on this repository.

Tinfoil answered 13/9, 2011 at 12:13 Comment(0)

There's no way to make a direct conversion. Strictly speaking, you can make a port, adapting the code, or use some emulator or wrapper to run the CLDC/MIPD classes.

The guys in Opera also used MicroEmulator for OperaMini.

Ithnan answered 13/9, 2011 at 12:13 Comment(9)

Mister, Its possible. Because they created LWUITActivity.java for running the MIDlet application on Android mobiles. I done a lot of applications without any issues. :) – Tinfoil 13/9, 2011 at 12:22

I was not talking on just adapting the GUI. I was talking about adapting JavaME code to Android in a general. – Ithnan 13/9, 2011 at 12:57

In general we cant run directly on Android. We need to use some convertor. But If we develop the Java ME application using LWUIT means we can run that application on Android. Before that we need to change some code. – Tinfoil 13/9, 2011 at 13:16

Do you know any converter other than microemu and netmite ? – Grouping 13/9, 2011 at 13:52

@bharat Agree, porting J2ME to Android is not that easy. You have to deal with things like RMS storage, or reading params from jad, or taking a snapshot via MMAPI, etc. – Ithnan 13/9, 2011 at 16:21

That's y i said need to change some code. Some core API we cant use directly. – Tinfoil 14/9, 2011 at 5:31

@Grouping You are using LWUIT. So no need to use convertor for this. just do some kind of changes for android platform. – Tinfoil 14/9, 2011 at 6:47

LWUIT4IO adds support for Storage (RMS), FileSystem and HTTP networking in a way that is portable between RIM/Android & J2ME with no code duplication. Using a J2ME converter will result in an application that look inferior and performs badly. Furthermore, LWUIT on android has native in place editing and ability to integrate with native platform features. Bharath's answer above is the correct one and should be marked as such. – Cantilena 15/9, 2011 at 3:34

@Shai I didn't know about that functionality. Just readed in your blog XD. However I'm a big fan of native apps. And I don't see any reason to support J2ME any longer. – Ithnan 15/9, 2011 at 7:24

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