How to make a J2ME application run in Background?

Question

I have a written a J2ME application which uses Bluetooth and search a file within the peer mobile and download it. I would like to make my application run in background , whenev

Answer 1

to set a j2me app to the background use the following in your midlet class:

          Display.getDisplay (this).setCurrent (null);

to get the screen back use the following:

          Display.getDisplay (this).setCurrent (myCanvas);

Where myCanvas is your canvas instantiation

R

p.s. You can still use a thread or timer to do things in the background while your midlet is hidden.

p.s.2: this does not work on all models. (Works on Nokia s60, SonyEricsson, but not on Nokia s40, Samsung and some others.