Application Without UI in the background

[gregb34]

Hi,

I need to developp an application (without UI), which run in the background of the mobile and do an action every x seconds.
i need to use "Push Registry" o is there a way more easly ?

Thanks you for your help.

[chall3ng3r]

Hi there,

You can make a console application without any GUI. And can do anything you'd like to do while application is running in the background.

Checkout the following link:
http://wiki.forum.nokia.com/index.php/Gui_vs_Console

And also check out this sample, which will tell you how you can make the BG process work check for events etc.
http://wiki.forum.nokia.com/index.ph...e_%28Server%29

Update: Sorry, my bad. I didn't noticed in which forum the question was posted.

Hope it helps,

// chall3ng3r //

[gregb34]

i want to do it in Java not in C++

I don't want to catch event, i want only a timer which run in background.

using display.setCurrent(null); is it good ?

[anjan_singha]

Hi,
You can run MIDlet in background or more precise without GUI, It was working in my Series 40 devices. But while running app in the background dosnt mean u can run other application in foreground, any other application will not execute( I have checked it on Series 40 but not sure abt S60). Actually this is based on multiprocessing . Since Symbian supports multiprocessing, it could work on Symbian device like S60 and higher end and some SonyE.

anjan

[gregb34]

Hi,
You can run MIDlet in background or more precise without GUI, It was working in my Series 40 devices. But while running app in the background dosnt mean u can run other application in foreground, any other application will not execute( I have checked it on Series 40 but not sure abt S60). Actually this is based on multiprocessing . Since Symbian supports multiprocessing, it could work on Symbian device like S60 and higher end and some SonyE.

anjan

How did you that ? Do you have any sample ?

Using Push Registry, can i set aan alaram to wake up my midlet every hours and close it ?

[anjan_singha]

Hi gregb34,

As I told you, you can run only one application at a time in series 40, it may be non GUI. You may try with display.setCurrent(null); by preparing very basic MIDlet.

Regarding PushRegistry:
this code may help you (I am not sure about Nokia series 40), try it on S60 and SE-->

class Register extends Thread
{
public Register()
{
}
public void run()
{
try {
System.out.println("+");
PushRegistry.registerConnection("autostart://:", "AutoStart", "*");
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

and call this thread from ur MIDlet by:

new Register().start();

you will get details on:
http://developers.sun.com/mobility/m...icles/pushreg/

hope it will help

[ypele]

Try here:

http://discussion.forum.nokia.com/fo...d.php?t=141646

[gregb34]

with Push Registry can i setup an alarm to make an action every x secondes ? because, i have see an alarm functionnality.

[ypele]

Focus on This

/**
 *  Schedule this MIDlet's launch.
 *  @param deltatime the length of time in
 *  milliseconds before expiration.
 */
private void scheduleMIDlet(long deltatime)
    throws ClassNotFoundException,
    	   ConnectionNotFoundException,
	   SecurityException {

    String cn = this.getClass().getName();
    // Get the current time by calling Date.getTime()
    Date alarm = new Date();
    long t = PushRegistry.registerAlarm(cn,
         alarm.getTime()+deltatime);
}

Rest is in:

http://developers.sun.com/mobility/m...icles/pushreg/

[gregb34]

Focus on This

/**
 *  Schedule this MIDlet's launch.
 *  @param deltatime the length of time in
 *  milliseconds before expiration.
 */
private void scheduleMIDlet(long deltatime)
    throws ClassNotFoundException,
    	   ConnectionNotFoundException,
	   SecurityException {

    String cn = this.getClass().getName();
    // Get the current time by calling Date.getTime()
    Date alarm = new Date();
    long t = PushRegistry.registerAlarm(cn,
         alarm.getTime()+deltatime);
}

Rest is in:

http://developers.sun.com/mobility/m...icles/pushreg/

In fact, i don't know where i need to put the code in the project. My Application is made only by one class which use Push Registry ?

[ypele]

Hi,
In Your J2ME Suit, Create two classes,
One class - your main functionality,
Second- your Push Reg Timer.
(both can be in one file).
The PR Class will operate your First class.. by setting :

PushRegistry.registerAlarm(FIRSTCLASS,alarm.getTime()+deltatime);

Bare in mind - TO have Push Reg works - the classes must be in the same suit. - Same jar file. if its not on your plans to have it list this, then use SOCKET \ DATAGRAM connections and define TIMER & TASKER.