[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
Thanks Jon. It works very well for me. You saved me a day. Thank you. Hai On Sunday, December 7, 2008 2:56:10 PM UTC+7, Jon Colverson wrote: > > On Dec 5, 7:56 am, Jon Colverson wrote: > > On Dec 5, 6:41 am, Jon Colverson wrote: > > > > > I'd been having some weird issues with AlarmManager seemingly not > > > firing my alarms when the device is asleep. I'm using the alarm to > > > start a service and I was acquiring my wake lock in onStart(). I tried > > > acquiring the lock in onCreate() instead, and that seems to have > > > solved the problem. > > > > Oops. I spoke too soon. After some more testing that doesn't seem to > > have helped. > > I had another look at the AlarmManager documentation and I noticed > that it only talks about using alarms to broadcast events, not start > services. I changed things around to use a BroadcastReceiver instead > that acquires the lock in its onReceive() and stored the lock > reference as a static member of another class, following the example > of the AlarmClock application: > > http://android.git.kernel.org/?p=platform/packages/apps/AlarmClock.git;a=blob_plain;f=src/com/android/alarmclock/AlarmAlertWakeLock.java;hb=HEAD > > > That seems to have worked. I guess what was happening was that my > service starting alarms were being fired, but the device was sometimes > going back to sleep before I could acquire the wake lock. Apparently > the only guarantee that is made when an alarm is received is that the > onReceive will run to completion. > > I just thought I'd post this in case anyone is ever searching for the > same problem. > > -- > Jon > -- 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 --- 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 android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
On Dec 5, 7:56 am, Jon Colverson <[EMAIL PROTECTED]> wrote: > On Dec 5, 6:41 am, Jon Colverson <[EMAIL PROTECTED]> wrote: > > > I'd been having some weird issues with AlarmManager seemingly not > > firing my alarms when the device is asleep. I'm using the alarm to > > start a service and I was acquiring my wake lock in onStart(). I tried > > acquiring the lock in onCreate() instead, and that seems to have > > solved the problem. > > Oops. I spoke too soon. After some more testing that doesn't seem to > have helped. I had another look at the AlarmManager documentation and I noticed that it only talks about using alarms to broadcast events, not start services. I changed things around to use a BroadcastReceiver instead that acquires the lock in its onReceive() and stored the lock reference as a static member of another class, following the example of the AlarmClock application: http://android.git.kernel.org/?p=platform/packages/apps/AlarmClock.git;a=blob_plain;f=src/com/android/alarmclock/AlarmAlertWakeLock.java;hb=HEAD That seems to have worked. I guess what was happening was that my service starting alarms were being fired, but the device was sometimes going back to sleep before I could acquire the wake lock. Apparently the only guarantee that is made when an alarm is received is that the onReceive will run to completion. I just thought I'd post this in case anyone is ever searching for the same problem. -- Jon --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
I was setting my AlarmManager in the wrong place, namely an onXxx event. What i did was set the AlarmManager on a user action (like save or whatever) and that solved my problem. Check it out Applications > Tools > ClockApps On Dec 5, 2:56 am, Jon Colverson <[EMAIL PROTECTED]> wrote: > On Dec 5, 6:41 am, Jon Colverson <[EMAIL PROTECTED]> wrote: > > > I'd been having some weird issues with AlarmManager seemingly not > > firing my alarms when the device is asleep. I'm using the alarm to > > start a service and I was acquiring my wake lock in onStart(). I tried > > acquiring the lock in onCreate() instead, and that seems to have > > solved the problem. > > Oops. I spoke too soon. After some more testing that doesn't seem to > have helped. > > -- > Jon --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
On Dec 5, 6:41 am, Jon Colverson <[EMAIL PROTECTED]> wrote: > I'd been having some weird issues with AlarmManager seemingly not > firing my alarms when the device is asleep. I'm using the alarm to > start a service and I was acquiring my wake lock in onStart(). I tried > acquiring the lock in onCreate() instead, and that seems to have > solved the problem. Oops. I spoke too soon. After some more testing that doesn't seem to have helped. -- Jon --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
On Nov 29, 12:15 pm, Noam Wolf <[EMAIL PROTECTED]> wrote: > I have a BroadcastReceiver which acquires a lock onReceive. I use an > alarm manager with AlarmManager.RTC_WAKEUP set to broadcast my > intent. I have found that when the phone is locked (and asleep) it > will not wake up sometimes, and when it does many times it will have a > delay (up to 30 seconds from when the alarm manager was supposed to go > off). I'd been having some weird issues with AlarmManager seemingly not firing my alarms when the device is asleep. I'm using the alarm to start a service and I was acquiring my wake lock in onStart(). I tried acquiring the lock in onCreate() instead, and that seems to have solved the problem. I know that doesn't help you with your BroadcastReceiver, but perhaps you can rework your app to use a Service instead? -- Jon --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: Strange behavior with AlarmManager.RTC_WAKEUP and PowerManager.WakeLock
ping... anyone? On Nov 29, 12:15 pm, Noam Wolf <[EMAIL PROTECTED]> wrote: > I have a BroadcastReceiver which acquires a lock onReceive. I use an > alarm manager with AlarmManager.RTC_WAKEUP set to broadcast my > intent. I have found that when the phone is locked (and asleep) it > will not wake up sometimes, and when it does many times it will have a > delay (up to 30 seconds from when the alarm manager was supposed to go > off). > > I don't understand how/what I'm doing different than the AlarmClock > application since I'm acquiring the lock in the receiver. I've also > seen the screen turn on but then immediately turn off > > Does anyone have any ideas as to why this is happening? Or has anyone > run into this? Is RTC_WAKEUP stable and trustworthy? > > Any help would be greatly appreciated. --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
