Ideally you would use a signaling protocol like SIP to notify your application that it should poll an HTTP resource see http://tools.ietf.org/id/draft-roach-sip-http-subscribe-00.txt. However, I'm not aware of any operator that yet supports SIP routing directly to a phone.
In the web world, developers are using a technique called COMET to maintain long lived connections to a client browser over HTTP. This allows servers to push notifications to browser applications. You could look into building your server solution using one of the COMET solutions out there and then hacking on Apache client to get it to work on the client side. Search google for tips on this. Another option may be to use XMPP with a long lived connection to your server. Android does not include a built in library to support the protocol (at least in the supported API), but you may be able to find a java client that you could port ( haven't looked too closely into this). All that said, carefully consider whether you really need real time notifications. Maintaining long lived connections will be a battery drain and polling a server may be good enough depending on your application. Clearly a real time chat app is a case where instant feedback is necessary but polling twitter every 5 minutes for updates seems good enough. Dave On Tue, Jun 30, 2009 at 5:49 AM, Adem KARAKOLLU<[email protected]> wrote: > How can i response from the server without request. > I can send httpRequest but i want to server will be able to send any > response whenever it want. (Server will be able to push to handset) > Must i install web server to my android ? > Any idea? > -- > ADEM KARAKOLLU > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
