the best and easier way i can figure is to use the Android Cloud to Device Messaging service, using the underlying google sync connection that it's already running.
http://code.google.com/android/c2dm/index.html You can see also the chrometophone extension code to see a working implementation: http://code.google.com/p/chrometophone/ This has a drawback, it only works on 2.2 devices. If you need to work without the google assistance, you have to do something like the google sync client does in the device, and i think that it's not part from the android open source, so you can't see the code. As far as I know, it works also with a service, opening a connection, but it's a special kind of connection because it has a long timeout, and it let the device to go to sleep, wakening it when it receive a response. It has also some alarms to reopen the connection if it is closed. I have found this blog post that explain a lot better and have some code examples: http://devtcg.blogspot.com/2009/01/push-services-implementing-persistent.html On 15 jul, 15:41, Namrata <[email protected]> wrote: > > Do you really need to have a socket open at all times? > > yes, my application is based on push technique for which I always need > to keep it open > > >only keep the socket open while the user is actually using the application. > > yup I am doing it. Actually the fuctionality of app includes > minimization of app and still listening to server push. > > On Jul 15, 6:24 pm, Miguel Morales <[email protected]> wrote: > > > > > Do you really need to have a socket open at all times? Why not > > periodically check the server using an Alarm, or only keep the socket > > open while the user is actually using the application. Also, any loop > > will drain your battery, you might try sleeping at the end of it. > > > On Thu, Jul 15, 2010 at 5:39 AM, Namrata <[email protected]> wrote: > > > Thanks Mark.. > > > > On Jul 15, 5:06 pm, Mark Murphy <[email protected]> wrote: > > >> On Thu, Jul 15, 2010 at 7:56 AM, Namrata <[email protected]> > > >> wrote: > > >> > any answer?..This is blocking issue for me as it drains batter in > > >> > couple of hours. > > > >> You may wish to watch the C2DM presentation from Google I|O 2010, as > > >> they provide a few hints on how they try to minimize battery usage. > > > >> -- > > >> Mark Murphy (a Commons > > >> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > >> _Android Programming Tutorials_ Version 2.9 Available! > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to [email protected] > > > To unsubscribe from this group, send email to > > > [email protected] > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > > --http://developingthedream.blogspot.com/,http://diastrofunk.com,http:/..., > > ~Isaiah 55:8-9 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
