On Dec 11, 3:38 pm, smoogli <roy.ben.ha...@gmail.com> wrote: > I bumped in C2DM which is, as far as I understand, the equivalent to > iPhone Push. Seehttp://code.google.com/android/c2dm/ > > It is required that there is a 3rd party server that sends messages to > the C2DM server.
In theory: No. But 'the C2DM server' is Google (https://android.apis.google.com/c2dm/ send), which routes the messages to the phone (actually its the Android Market app that does the routing) and the C2DM server requires a Google login authtoken (which you get by logging into the Google account used for C2DM). So, in practice: Yes, as the sender needs the authtoken (the login credentials for the Google account used for C2DM). So unless you keep them safe on a server, you'll have to hard code these credentials into your app, exposing them and making any skilled hacker able to log into the account (and, for example, disable C2DM :-) > I'm writing a server-less application. > > 1. Is it possible that an Android application will communicate with > the C2DM directly? C2DM works like this: You App gets a registration_id (actually from the Android Market app that does the routing) Those that wants to send a message to the device needs to know that registration_id + authtoken (login credentials for the Google account used for C2DM). > 2. Can such solution work for pushing small messages to applications > installed on other devices? Thats the idea of C2DM -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
