Before you look into using a WakeLock (which might not be necessary, since Android keeps a wake lock for the duration of your onReceive)...

There are a few things in your code that look rather strange to me:

1 - Your broadcast receiver is called Notification (bad name, btw, as it clashes with an Android class), and yet when setting the alarm, you use TimeAlarm:

Intent activate = new Intent(this, *TimeAlarm*.class);

2 - Inside onReceive, you call PendingIntent.getActivity() with the intent received by the broadcast receiver. Does that intent really point to an Activity?

3 - Not shown in your original email, but - did you declare your broadcast receiver in the manifest?

After dealing with the above, as next step, I'd add debug logging, shorten the alarm interval just for debugging (say, five minutes) and check what happens.

-- Kostya

11.03.2011 19:22, Brad Stintson пишет:
How should I implement WakeLock in my above mentioned code?


2011/3/11 Jonathan Foley <[email protected] <mailto:[email protected]>>


    Is the device going to sleep? If so you'll need to acquire a WakeLock
    otherwise it will wake up for the alarm and may fall back asleep
    before the notification ever gets fired.


    Jonathan

    On Mar 10, 10:06 pm, Brad Stintson <[email protected]
    <mailto:[email protected]>> wrote:
    > *My application is not triggering notification at specified
    alarm time.
    > Please see below classes and tell me how to do that.*
    > *
    > *
    > *
    > *
    > *This is my notification class.*
    > public class Notificaition extends BroadcastReceiver {
    >
    >     @Override
    >         public void onReceive(Context context, Intent intent) {
    >
    >           NotificationManager nm = (NotificationManager) context
    > .getSystemService(Context.NOTIFICATION_SERVICE);
    >      CharSequence from = "App Name";
    >      CharSequence message = "Event Title";
    >      PendingIntent contentIntent =
    PendingIntent.getActivity(context, 0,
    >        intent, 0);
    >      Notification notif = new Notification(R.drawable.icon,
    >        "EVENT", System.currentTimeMillis());
    >      long[] vibrate = {100,100,200,300};
    >      notif.vibrate = vibrate;
    >          notif.defaults =Notification.DEFAULT_ALL;
    >     notif.setLatestEventInfo(context, from, message, contentIntent);
    >          nm.notify(1, notif);
    >         }
    >
    > *And this is my alarm class*
    > public class AlarmTrig extends Activity {
    >  AlarmManager alarms;
    >
    >     @Override
    >     public void onCreate(Bundle savedInstanceState) {
    >         super.onCreate(savedInstanceState);
    >         setContentView(R.layout.main);
    >         am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
    >
    > setOneTimeAlarm();
    >
    >     }
    >
    >     public void setOneTimeAlarm() {
    >       Calendar cal = Calendar.getInstance();
    >
    >           cal.setTimeInMillis(System.currentTimeMillis());
    >           cal.clear();
    >           cal.set(Calendar.YEAR, mYear);
    >           cal.set(Calendar.MONTH,mMonth);
    >           cal.set(Calendar.DAY_OF_MONTH,mDay);
    >           cal.set(Calendar.HOUR,mHour);
    >           cal.set(Calendar.MINUTE,mMinutes);
    >           cal.set(Calendar.SECOND, mSeconds);
    >
    >  // where mYear, mMonths, mDay, mHour and mMinutes are int
    values from the
    > Date and Time picker dialogs respectively
    >
    >       Intent activate = new Intent(this, TimeAlarm.class);
    >       PendingIntent alarmIntent =
    PendingIntent.getBroadcast(this, 0,
    > activate, 0);
    >        alarms =
    (AlarmManager)getSystemService(Context.ALARM_SERVICE);
    >       alarms.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),
    > alarmIntent);
    >     }
    >
    >
    >
    >
    >
    >
    >
    > On Thu, Mar 10, 2011 at 7:21 PM, Kostya Vasilyev
    <[email protected] <mailto:[email protected]>> wrote:
    > > From a database? Same as anything else, by using a query.
    Probably easiest
    > > to keep date/time values as a long integer (standard Unix
    representation).
    >
    > > Once you have the time value, use AlarmManager and
    NotificationManager
    > > classes in Android.
    > > 10.03.2011 16:47 пользователь "Brad Stintson"
    <[email protected] <mailto:[email protected]>>
    > > написал:
    >
    > > > How to get time from database n trigger notification on that
    time?
    >
    > > > On Thu, Mar 10, 2011 at 4:45 AM, roberto
    <[email protected] <mailto:[email protected]>>
    > > wrote:
    >
    > > >> On Mar 9, 11:41 am, Marcin Orlowski
    <[email protected] <mailto:[email protected]>> wrote:
    > > >> > On 9 March 2011 19:59, roberto <[email protected]
    <mailto:[email protected]>> wrote:
    >
    > > >> > >http://hub.buzzbox.com/android-sdk/
    >
    > > >> > Looks interesting but I personally am not happy with it
    being closed
    > > >> > source (which I could stand) but integration with their
    analics. Who
    > > >> > knows what it analites when your app got internet
    permission. But can
    > > >> > be I am simply exaggerating :)
    >
    > > >> the buzzbox sdk actually does not require internet
    permission if you
    > > >> don't want to use the analytics.
    > > >> you can use the scheduler without analytics.
    >
    > > >> Roberto
    >
    > > >> > --
    > > >> > Regards,
    > > >> > Marcin Orlowski
    >
    > > >> --
    > > >> You received this message because you are subscribed to the
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    > > >> Groups "Android Developers" group.
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