> I guess if you have a significantly large user base, but I'm assuming that's > not the case, or is it?
Im planing ahead, trying to learn what it takes to make and app like that > Is some lagging or some delay in the delivery of these messages > completely unacceptable? yes im playing with the ide since mail or sms is no instant > What is so urgent about these messages that they *must* be received > instantaneously? That is a powerful features for a mobile app > Perhaps give the user a "poll interval" or an option for manually refreshing > the data, if it makes sense for your app. no, that way the phone is "never" ready to receive . > I would rethink what you're trying to accomplish and try to work within the > restrictions imposed by mobile devices. your right ofcorce, im new to android but not to Java so the transition is a bit painful > You can certainly keep your AsyncTask alive between orientation changes - > but only as long as the user keeps your app in focus as the current > Activity. Once you get put in the background you're subject to being killed. AsyncTask out the door, Services welcome in. > There's really no such thing as "keeping a connection alive". Your process > can and will be killed at some point, if not by the system then explicitly > by the user. In my Desire phone i see both fring and Google mssagin always running Read some about a service being "Sticky" I read elsewhere that a service can be started with a Brodcastcmmand http://stackoverflow.com/questions/4468006/can-i-start-a-service-without-activity-or-receiver cant wrap my head around the code implementation here. after reading many questions here and elsewhere about this. I think the method is: - an apk file which contains a Service an activity and a BroadcastReceiver Class. - action.BOOT_COMPLETED will start only my Service, not the Activity. The user can from Main Launcher start Activity for "in app settings" and I Bind to Service and Unbind when done Yea will try this tomorrow after work. I look at your TreKing app. Im impressed nice work That app would really been helpful this morning when i was waiting for the buss in the snowstorm. Can I ask how did you tap into CTA bus tracker system GPS signal for all there Busses location? -- 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
