Hidding an application

[mcadirci]

Hello,

I have a little problem with a MIDP 2.0 application.

I need my application to have a Hide button that makes application hide itsself. (Like pressing menu button for a while then choosing standby)

I have searched forum but can't find a solution.

How can I do that? Thanks for the help.

[jitu_goldie]

Hi,

just set ur current displayable null. like this:
display.setCurrent(null);

hope ur problem will solved.


thanks,
jitu_goldie..

[mcadirci]

Hi,

just set ur current displayable null. like this:
display.setCurrent(null);

hope ur problem will solved.


thanks,
jitu_goldie..

Hello,

By that i just get a NullPointerException. I am using Netbeans as IDE. Any suggestions?

Thanks.

[jitu_goldie]

Hi,
did u initialise the display ie Display display = Display.getDisplay(midlet);
can u post ur code here..

thanks,
jitu_goldie..

[mcadirci]

You were right i did not initiliazed the display variable. After changing display to Display.getDisplay(this) it worked and helped me alot, thank you very much.

[jackofall]

hi friend,

I have same sort of problem as well.
Actually, i want hide my midlet on phone device.
Can you give some suggestions ,how can i do that?
In ideal situation ,my midlet will be unvisible on phone device after installing it and can be lauched again through some secret codes.
please tell me something.
Thanks & Regards

[jitu_goldie]

Hi jack,
Please if im not wrong then u want to run ur application in background. if is it so then just set the current displayable null. like..

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

If im wrong then please make clear to me by describing the purpose of ur application.

thanks,
jitu_goldie..

[petrib]

If you want to hide it from the application menu, so that it is not visible to the phone user that the application is installed at all (even if it), then that is not possible.

[jackofall]

Hi jack,
Please if im not wrong then u want to run ur application in background. if is it so then just set the current displayable null. like..

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

If im wrong then please make clear to me by describing the purpose of ur application.

thanks,
jitu_goldie..

hi jitu,

Actually i am developing a mobile tracker which will take location coordinates from GPS Supporting mobile device and i need to send that coordinates to some one through sms and email.
i done through sms already and working on email.
But the other req. of my project is :
1. it should work in backgroung, as you suggested.
2. When we installed this application on device it will be not visible to user any more.But we can access our application using some passcode.
i am pasting a link here .Please give some suggestions:


Here is the link
http://gps-tracking.gpsintegrated.co...ingManual.aspx

[senthil_k]

Hi,
J2ME application cannot be made runnable in background. It is possible for Symbian application but not for a MIDlet application. The scenario explained in the link provided is not possible with J2ME application.

Regards,
Senthil