Thanks for your response Dianne.
This is the code I use to setup the alarmManager (from "MyActivity"):
Intent intent = new Intent(MyActivity.this,
MyBroadCastReceiver.class);
PendingIntent sender = PendingIntent.getBroadcast
(MyActivity.this, 0,
intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService
(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis(), sender);
Should I be releasing the lock after I setup the AlarmManager? The
reason I ask is because right after this block of code I have some
code that tries to open a dialog window and when the MyActivity is not
running it bombs so I was wondering if it makes sense to release the
lock here rather than in the receiver itself.
I hope my question is clear... thanks!
On Nov 30, 12:15 am, "Dianne Hackborn" <[EMAIL PROTECTED]> wrote:
> You need to hold a wake lock the entire time you want to be running, from
> when onReceiveIntent() is called until you have done all of your work.
>
>
>
> On Tue, Nov 18, 2008 at 9:56 PM, Adam K <[EMAIL PROTECTED]> wrote:
> > Thanks Dianne.
>
> > Should I be holding a wakelock in the pendingintent receiver of the
> > alarm (basically acquiring at the start of the onReceive() and
> > releasing at the end)? All I am doing in the receiver is setting off
> > a notification - I am not creating any other intents or accessing any
> > other threads or services.
>
> > Cheers,
>
> > Adam
>
> > On Tue, Nov 18, 2008 at 9:22 PM, Dianne Hackbod <[EMAIL PROTECTED]>wrote:
>
> >> Fwiw, I am not aware of any issues with the alarm itself not waking up the
> >> phone. Typically bugs in this area are a result of applications not
> >> holding
> >> wake locks the entire time needed.
>
> >> Note that the behavior when not holding a wake lock can change
> >> significantly between devices, depending on things like how often sync is
> >> running.
>
> >> On Tue, Nov 18, 2008 at 6:15 PM, Adam K <[EMAIL PROTECTED]>wrote:
>
> >>> Ping. Anyone? It seems for certain people the alarm can never wake
> >>> up the phone. For others (like myself) it pretty much always wakes up
> >>> the phone.
>
> >>> Thanks,
>
> >>> Adam
>
> >>> On Nov 16, 8:15 pm, "Adam K" <[EMAIL PROTECTED]> wrote:
> >>> > Hi all,
>
> >>> > I noticed that AlarmManager does not always seem to wake the device
> >>> > correctly when using types RTC_WAKEUP or ELAPSED_REALTIME_WAKEUP. It
> >>> > seems like whatever intent was pending is triggered later after the
> >>> > Menu key is hit.
>
> >>> > I realize you need to hold a wakelock for any activity fired after the
> >>> > initial pending intent event - but I thought at least the pending
> >>> > intent should execute without a wakelock being required? All I want
> >>> > to do is set off a Notification when the alarm is complete - nothing
> >>> > else.
>
> >>> > It does seem to work 90% of the time without an issue, just not 100%
> >>> > of the time. Has anyone else noticed this?
>
> >>> > Here is a summarized version of what I'm doing:
>
> >>> > //in main activity, set alarm for some time in future
> >>> > myPendingIntent = PendingIntent.getBroadcast(myContext, 0, new
> >>> > Intent(myContext, MyReceiver.class), 0);
> >>> > myAM = (AlarmManager) getSystemService(ALARM_SERVICE);
> >>> > myAM.set(AlarmManager.RTC_WAKEUP, getTriggerTime(), myPendingIntent);
>
> >>> > //in MyReceiver.class, onReceiver(), trigger notification
> >>> > NotificationManager myNM = (NotificationManager)
> >>> > context.getSystemService(Context.NOTIFICATION_SERVICE);
> >>> > Notification notif = new Notification();
> >>> > ..setup notification to play alarm, vibrate etc.
> >>> > myNM.notify(MYNOTIFICATION_ID, notif);
>
> >>> > Thanks,
>
> >>> > Adam
>
> >> --
> >> Dianne Hackborn
> >> [EMAIL PROTECTED]
>
> --
> Dianne Hackborn
> Android framework engineer
> [EMAIL PROTECTED]
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support. All such questions should be posted on public
> forums, where I and others can see and answer them.
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