may i suggest another option?
get yoursefl a copy of the latest openintents build,
write a Service class that does whatever you want,
then on some point in your app just call
org.openintents.provider.Alert.registerManagedService(myServiceClassName,myTimeIntervall,useWhileRoaming)
;
and you should be good to go :)
On Jun 19, 10:22 am, "Jaikishan Jalan" <[EMAIL PROTECTED]> wrote:
> I completely understand that making an HTTP request every 5 seconds is not
> the best way to keep the user happy :). I am just trying to prototype it to
> see it working. Ideally, in production the application has to make an http
> request once every hour or so. Also, I don't want that even my background
> process is sleeping, I don't want to get it killed. It should be killed only
> when the user turns off its mobile.
>
> So one application, is when the mobile is started, I will start a background
> process. This background process will pull a new quote from a server once
> every hour and display it to user. ( Assume for the time being that all the
> android mobile user will want this capability [Which I know is not true]).
>
> Do you still I should use AlertManager or run my own thread? One more
> related question I had is there any way to measure how much battery power my
> background process will overall take ?
>
> Thanks
> -J
>
> On Thu, Jun 19, 2008 at 1:42 PM, hackbod <[EMAIL PROTECTED]> wrote:
>
> > If you keep yourself running in the background forever, you are taking
> > those resources from the rest of the system forever. This is not a
> > polite thing to do. By using the alarm manager, the system has more
> > freedom to kill your process when it is not needed.
>
> > A service that keeps itself running forever but not actually doing
> > anything most of that time is a big waste of valuable resources, so
> > something to avoid.
>
> > And doing an HTTP operation every 5 seconds is WAY too much. Keep in
> > mind, every line of code you run is lowering the level of the battery,
> > every network operation you do is lowering it even more. Doing this
> > kind of thing every 5 minutes is the minimum scale you should be
> > thinking about.
>
> > On Jun 18, 11:00 pm, "Jaikishan Jalan" <[EMAIL PROTECTED]> wrote:
> > > Hi Zach,
>
> > > So, Once I receive the BOOT_COMPLETED_ACTION Intent, what is the problem
> > if
> > > I start a thread which keeps running and sleep for time "t" and then
> > again
> > > start running. Is this a bad approach ? Here is my code :
>
> > > This code will do some HTTP Post Request every 5 second. The idea is to
> > run
> > > this in the background once my the emulator is started and keep this
> > running
> > > until the mobile is switched off.
>
> > > import android.content.Context;
> > > import android.content.Intent;
> > > import android.content.IntentReceiver;
>
> > > public class AddressLogService extends IntentReceiver{
> > > @Override
> > > public void onReceiveIntent(Context context, Intent intent) {
>
> > > Thread tr = new Thread(null,AddressTask,"Address Logger");
> > > tr.start();
> > > }
>
> > > private Runnable AddressTask = new Runnable() {
>
> > > public void run(){
> > > while(true){
>
> > > try{
> > > //I do some HTTP Post Request.
> > > Thread.sleep(5*1000);
> > > }catch(Exception e){}
> > > }
>
> > > }
>
> > > };
>
> > > }
>
> > > Thanks
> > > -J
>
> > > On Thu, Jun 19, 2008 at 8:09 AM, Zach Hobbs <[EMAIL PROTECTED]>
> > wrote:
>
> > > > If you are doing periodic updates I would think about using the
> > > > AlarmManager
> > > > to kick off the process after specified intervals. If you create a
> > service
> > > > it's possible that it will be killed by the OS to free resources.
>
> > > >http://code.google.com/android/reference/android/app/AlarmManager.html
>
> > > > --
>
> > > > Zach Hobbs
> > > > HelloAndroid.com
> > > > Android OS news, tutorials, downloads
>
> > > > On Wednesday 18 June 2008 16:00:38 Jaikishan Jalan wrote:
> > > > > Hi,
>
> > > > > Thanks for the reply. I understood what you are saying. I wrote my
> > Intent
> > > > > Receiver which will receive to this broadcast message. Now I want to
> > run
> > > > a
> > > > > background process which keeps running forever ( which do some update
> > > > after
> > > > > every sometime t). My approach to this problem is this : I am going
> > to
> > > > > write a Service Calls and call it from the onReceiveIntent method of
> > the
> > > > > IntentReceiver I wrote. Now, onStart method of the Service Class, I
> > will
> > > > > create a thread that updates and then sleep for time t and keep
> > running.
>
> > > > > Is this a recommended way to approach this problem?
>
> > > > > Thanks
> > > > > J
>
> > > > > -----Original Message-----
> > > > > From: [email protected]
> > > > > [mailto:[EMAIL PROTECTED] On Behalf Of Damien
> > > > > Sent: Wednesday, June 18, 2008 8:51 AM
> > > > > To: Android Developers
> > > > > Subject: [android-developers] Re: Running a program when emulator
> > start
>
> > > > > Android broadcasts a message on boot. See
>
> > > >http://code.google.com/android/reference/android/content/Intent.html#.
> > ..
> > > > >O MPLETED_ACTION
>
> > > > > If you have something listening for this broadcast then it will start
> > > > > as soon as the
> > > > > boot has completed.
>
> > > > > Regards
> > > > > D.
>
> > > > > On Jun 18, 11:18 am, Jaikishan <[EMAIL PROTECTED]> wrote:
> > > > > > Hi,
>
> > > > > > I was wondering if its possible to start a program automatically in
> > > > > > the background as soon as the emulator gets started? The idea is to
> > > > > > show some message on the status bar.
>
> > > > > > Thanks
> > > > > > -J
>
> > > <http://www.geocities.com/jai_ism>
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