I am trying to set a repeating alarm in android that eventually will go up at a user specified time. However the alarm goes off right away when once it is set, even when I make sure the alarm isn't set to go off until after the alarm has been set. For example, I have the code below set to have an alarm go off at 10:43 so I set the alarm at 10:41, but the alarm goes off right away. Any ideas? Thanks in advance.
public class Alarm extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
PowerManager pm = (PowerManager) context
.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(
PowerManager.PARTIAL_WAKE_LOCK, "");
wl.acquire();
Toast.makeText(context, "Alarm !!!!!!!!!!", Toast.LENGTH_LONG).show(); // For
Intent scheduledIntent = new Intent(context,ReminderMessage.class);
scheduledIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(scheduledIntent);
// example
wl.release();
}
public void SetAlarm(Context context) {
AlarmManager am = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Date dat = new Date();
Calendar cal_alarm = Calendar.getInstance();
Calendar cal_now = Calendar.getInstance();
cal_now.setTime(dat);
cal_alarm.setTime(dat);
cal_alarm.set(Calendar.HOUR_OF_DAY, 10);
cal_alarm.set(Calendar.MINUTE, 43);
cal_alarm.set(Calendar.SECOND, 0);
if(cal_alarm.before(cal_now)){
cal_alarm.add(Calendar.DATE, 1);
}
Intent i = new Intent(context, Alarm.class);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), cal_alarm.getTimeInMillis() , pi); // Millisec * Second * Minute
}
public void CancelAlarm(Context context) {
Intent intent = new Intent(context, Alarm.class);
PendingIntent sender = PendingIntent
.getBroadcast(context, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(sender);
}
}
I think your line:
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), cal_alarm.getTimeInMillis() , pi); // Millisec * Second * Minute
is triggering the alarm immediately, the second param is the scheduled time, and the third is the period. So if you wanted your alarm to go off at cal_alarm time, you want to use something like:
am.setRepeating(AlarmManager.RTC_WAKEUP, cal_alarm.getTimeInMillis(), 1000*60*5 , pi); // Millisec * Second * Minute
That should go off at the cal_alarm time, and repeat every 5 mins.
AlarmManager.SetRepeating API Doc
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