Hello, I have an application which monitors various components of the Android system: CPU, Memory, SD, apps, etc...
The users can select to have a widget or a notification displayed on their device or even both. The notifications are able to display CPU load or CPU frequency and are provided as additional APK receiving intents from the main app (background service + broadcastreceiver with scheduled alarms). So, my app registers to receive SCREEN_ON and SCREEN_OFF broadcasts to disable widget/notification refreshes when screen is off. So during screen off, the app is actually not doing anything at all, but only waiting for the SCREEN_ON intent to restart refreshing widgets/ notifications! The problem is that for some users, after an overnight in standby, the widgets and notifications do not refresh anymore! I suspect it's because the app was killed and the SCREEN_ON registration is lost? So I tried to have the app killed when screen goes off... Well on my device at least it works as I want, app is restarted so is the refresh of widgets/notifications! Having another app acting more or less the same, I know from experience that only alarms are not lost when the app is killed by the OS, even though I've always been unable to reproduce this manually, if the app has no alarm scheduled on regular intervals it ends up being permanently killed by the OS (?) Can someone tell me how the SCREEN_ON registration is affected when the app is killed by the OS, and how can I make sure it will receive the SCREEN_ON broadcast? Some users have already reported the issue of widget/notification not being refreshed anymore! After searching the web I understood that only the following will keep the app running: - An alarm is scheduled at regular intervals - Use of the startForeground() with a notification - The app activity is in the forerground I can't use any of the above because an alarm will constantly wake-up the app and the phone when there's actually nothing to do, the notifications are optional (user may only have the widget) and the app activity is obviously not always in the foreground. Another note/question: the app has an option to record the data, scheduled every 5 minutes, when this is on the app keeps running appropriately and widget/notification are not lost, though if the app gets killed I loose the past recording! Is there anyway to keep my service running and keep the SCREEN_ON registration at all time? Sorry for the long question, I'm trying to be exhaustive about this. -- 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
