Creating multiple UI threads in j2me..

[shiva.n]

hi,

I am working on game development, and i need to create multiple UI threads to handle different events.. is it possible to do... i am sure using normal threads its not possible to do.. because the statements that are executed by the normal threads are not displayed even if u passed the same Graphics object..

Thanks,
Shiva

[grahamhughes]

There is only one "UI thread", created by the device for you. It delivers all the events. You can create other threads, but I strongly recommend you limit yourself to just one.

You might like to read this post, and this thread.

Graham.

[shiva.n]

@Graham
thanks for your reply, I gone through the links that you provided.

But i need to handle different events at single time, like i want to display time in my game i need to handle that event by separate thread I don't want to depend that event on to main UI thread. that's the reason i need multiple threads..

will you please let me know how to create multiple UI threads..

thank you,
Shiva

[grahamhughes]

No, you don't need to use multiple threads. You can (and should) handle everything on one thread (one thread you create, to run along side the event thread). If you use follow the code in the example I pointed you to, you can do exactly what you want. Most commercial games work this way.

In the sample code, a loop is used to generate paint events at regular intervals, so that the game can run separately from external events like key presses. This is by far the simplest and most reliable technique. You can do exactly what you want this way.

Graham.

[raj_J2ME]

Yeah Graham is perfectly correct and that is the approach that is being strongly recommended.Most of games programmers does the coding like that.Even you should have asked this question like how to manage the various activities in the game?

Therefore I would rather
Would rather recommend that you must read the articles on the web and see the code structure of the games over the web. I found this article very helpful and important for your concern.
This is the article include the both approach like the canvas and gamecanvas.