[leg0]

Hello!

I tried searching for solution, but the only message I could find was dated 2006 something and saying that this was impossible. Regardless I think it must be possible. I have Nokia 6212 Classic as a test phone. This phone contains applications such as Stopwatch, Calendar and Alarm Clock that all can be run in the background. At least it seems so. What mechanism do these applications use to achieve the effect? Reference to appripriate APIs would be great.

Thanks!

[bogdan.galiceanu]

Hi,

In every thread about this I have seen on this forum, the conclusion was always the same: it isn't possible to run apps in the background on Series 40 devices. Only S60 ones can do it.

[raj_J2ME]

Originally Posted by leg0

Hello!

1.Regardless I think it must be possible.

2.This phone contains applications such as Stopwatch, Calendar and Alarm Clock that all can be run in the background. At least it seems so. What mechanism do these applications use to achieve the effect?
Thanks!

1.How,if the particular API/activity is not supported bu the device itself,then how you will implement the same.Rather you will be just wasting the time.Series 40 devices does not let the application runs in the background at all.Thats not possible dear,

2.watch,calender,and rest of the application are the native applications and might be Nokia has made the restrictions for the user applications.They have just install the application and they keep on running in the background,being the native application.However, for the user application they have just denied due to the specific reasons,like the performance of the device,and so on.
But at the end of the day,you can not run the application in the background,at any cost.

Nokia guy's,If I am wrong while explaining the second point,then please forgive me,and correct me.But I would say that question asked by the starter of the thread,make some sense.Please explain this thing in details.

[leg0]

Ok, if making midlet run in the background is really impossible, then would it be possible to let the OS lock the keypad while my application is running? Or does the "locking" have to be part of my application?

[raj_J2ME]

Originally Posted by leg0

Ok, if making midlet run in the background is really impossible, then would it be possible to let the OS lock the keypad while my application is running? Or does the "locking" have to be part of my application?

Hi,
Using Java ME thats also not possible.

[jitu_goldie]

whats the result if we not use any kind of displayable in application. Is application without any displayable seems to be running in background???

[ansh.chauhan]

In my opinion we cant run application on S40 devices.Because when we press red key on mobile while your application running it always say us to exit application.I took this as assumption but this can be run only on S60 devices

[raj_J2ME]

Hi,
Whatever you display or not,or you do anything,thats not possible so far.

[Tiger79]

shortly :
- you cannot run an application in the background on a S40, because it's not a multitasking OS... On the other hand the S60 OS is multitasking hence on that particular platform you can run an application in the background, even though it might not work correctly consistently on ALL S60's...
- unfortunately you cannot lock (or unlock for that matter) the keypad from within a J2ME application... This is because of the sandbox principle which is applied to the J2ME language/environment... The appllications simply shouldn't be able to get control over a mobile...

[surfa]

I'm not correcting all misinformation below, but have you tried instructions given in this PDF:

http://download.gceclub.sun.com.cn/e...47/TS-4447.pdf

That document is pure S40 informative and has JAD tag changes example that should make it possible to background a MIDlet.

[arungupta_2jan]

I think in seris 40 we cant run application on background ...

[juarezjunior]

Hi,

Check this page at FN Library to know what is possible for Series 40 and S60 regarding your requirement.

http://library.forum.nokia.com/topic...7-20DE4A538FB8

Best regards,

[surfa]

Originally Posted by juarezjunior

Hi,

Check this page at FN Library to know what is possible for Series 40 and S60 regarding your requirement.

http://library.forum.nokia.com/topic...7-20DE4A538FB8

Best regards,

I at least am aware of that site, but the information there seems to conflict with the presentation I pasted earlier. The PDF itself seems to be Nokia originated so I'd consider it rather reliable too.

It oppositely seems to present the ways to backgrounding of an S40 MIDlet even that it's dated 2006, I'm pretty confident that features such as that wouldn't be removed if provided once.

I know that plenty of people *think* that it isn't possible, but I'd like to see someone trying the instructions in the PDF. I kind of have a feeling that forum Nokia articles such as above, aren't completely up to date considering S40 context.

[juarezjunior]

Hi,

I agree with you, but the vast majority of what is promised on the PDF never made to Series 40 phones, as far as I know...have you tested it? ;-D