I have an app with a main activity that has no visible interface (android:theme="@android:style/Theme.NoDisplay). The app is started by receipt of an SMS message in a BroadCast activity which kicks off another activity (also no GUI) that does work and then sends an SMS message. It works very well; actually better than I had expected because it runs even if other apps are running a foreground activity. Now I'm familiar with the Android Activity Lifecycle but I guess this means that Android (I'm using 2.33) can run "many" activities "at once." Even when I'm running a very active GPS tracking application that is writing layers on a mapview, my "no-display" app starts does his work and sends the results out on an SMS message. The tracking app that was running never even blinked. I don't have any problem (at least not programming related), I'm just curious why this works. Regards, Gary
-- -- 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 --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.

