Are there other ergonomic technologies in j2me other than j2me-Polish and LWUIT ?
There are many Frameworks as explained here , most of all works with j2me
but I recommend to use lwuit, since its latest version 1.5 is used and much stable
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I’m working on an app which is required to run on multiple different platforms. The original code is written in J2ME (Java ME).
The documentation online regarding using J2ME Polish for targeting multiple platforms is scarce and difficult to follow.
Can anyone here offer advice on targeting these 3 platforms using one code base? I’m currently using NetBeans 7.3 + the J2ME Polish plugin.
I’d ideally like to support:
Android 2.1+
BlackBerry OS 5.0+
J2ME/Java ME devices
I make small investigation how good is monotouch and mono for android comparing with native code? What I need is numbers and maybe some other info about advantages and disadvantages of monotouch and mono for android...
Thank you!
I don't have comparison figures but I have used both MonoTouch and MonoDroid for an OpenGL application.
The type of application your making may make the difference to you.
If you want to create a cross platform application I personally would go with Mono as its probably going to be more productive in the end.
I have must say MonoTouch outperforms MonoDroid, probably because of the .NET to java interop that must take place on Android (and the Java on Android seams to be slow)[At least android 2.2+ devices].
There is also Mono.Simd if you need speed optimizations.
UPDATE: "Mono.Simd" is not available on MonoTouch or MonoDroid.
I know this is not a real answer, but in my opinion, it is the best. You can get both a native app as well as lots of code re-use. There are lots of things out there that could help you make a decision, but also look at the Xamarin blog.
here a link that may help you :
http://www.koushikdutta.com/2009/01/dalvik-vs-mono.html
based on that mono is way faster than java dalvik!
I develop a mobile application which is pure J2ME.But now the requirement is changed for J2me-polish.But i does not know J2me-polish.SUggest me good J2me-Polish tutorial.How to covert the application from J2me to J2me-Polish (Without changing in code is possible or not).
Thanks & Regards,
Sivakumar
Here are some useful links from J2ME polish's official website:
Installing J2ME polish
Migrating J2ME polish
Designing with J2ME polish
Visual guide for J2ME polish
J2ME polish documentations
Without changing in code is possible
or not?
You have to write some code to support J2ME polish. But may not require to change in code for functionalities. For designing GUI you have to made some changes in code and have to add some more coding.
We are developing a J2ME application and sometimes we face constraints while working with the default lcdui library. Whenever we want some extra in the UI, the only option is to work with canvas which is not so easy. Now we are thinking to use LWUIT as UI library instead of ludui but having some question before starting -
Is LWUIT mature enough to be used in a enterprise J2ME application?
Can we mix LWUIT and LCDUI in same application ?
In my point of view. lwuit is mature enough to be used in enterprise applications. It's still in permanent development and it's progressing fast.
Yes you can mix both of them. If you use an lwuit form you can only add lwuit components and vice versa. It should be possible to implement and draw you own container objects (canvas style).
LWUIT is mature enough to be used as enterprise application and though J2ME has some limited classes when we talk about JDK but still its mature enough to build many applications
I am a newbie to J2me. I am programming a Java program to recognise QRs.
The specifications of the projects include the compatibility with most of cellphones. For example, Nokia with Symbian, iPhone or HTC with windows mobile.
I have started downloading, JDK, WTK, eclipse and MTJ.
Any other advice would be of help.
To do this, I will need to provide a different distro for every commercial mark? or OS?
You can't run J2ME applications on iPhone or Android.
iPhone apps are written in Objective-C, and Android apps are written in regular Java (almost). Don't know about the Symbian case (but that probably runs J2ME just fine).
If you want a high degree of code-reuse, I strongly advice you to try to do the application web-based, preferably executed in the browser, or with a minimal OS-specific implementation of a front-end.