Develop Reference

Why isn't my alarm going off? (android)

My alarm does not go off at the specific time or at all (I have tried setting it to one minute of current time). I have made sure that setAlarm() is going off because the log Log.d("asas", "adasd"); goes off. I do not know what is wrong, if you see how I can fix this please let me know. Thanks
public void setAlarm(){
AlarmManager alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, DrawOverAppsService.class);
PendingIntent alarmIntent = PendingIntent.getActivity(MainActivity.this, 123, intent, 0);
if(sp.getBoolean("startChecked",false) == true) {
Log.d("asas", "adasd");
java.util.Calendar calendar = java.util.Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(java.util.Calendar.HOUR_OF_DAY, 19);
alarmMgr.setRepeating(AlarmManager.RTC,
calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, alarmIntent);
}
if(sp.getBoolean("startChecked",false) == false) {
Log.d("asdasd","asdasdasd");
alarmMgr.cancel(alarmIntent);
}
}

Changed PendingIntent alarmIntent = PendingIntent.getActivity(MainActivity.this, 0, intent, 0); to PendingIntent alarmIntent = PendingIntent.getService(MainActivity.this, 0, intent, 0);

How to edit and delete alarm time in Android?

I have built an alarm which works properly:
public static void setAlarm(int hours, int minutes) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, hours);
calendar.set(Calendar.MINUTE, minutes);
Intent myIntent = new Intent(PreferenceHelper.getContext(), TimeManagementAdapter.AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0);
alarmManager.set(AlarmManager.RTC, calendar.getTimeInMillis(), pendingIntent);
}
Now, how can I edit the alarm time and delete the alarm?

For cancelling the alarm you may call AlarmManager.cancel with your PendingIntent.
Intent myIntent = new Intent(PreferenceHelper.getContext(), TimeManagementAdapter.AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0);
alarmManager.cancel(pendingIntent);
For editing the alarm, you have the option to first cancel it and re-add it or you may add PendingIntent.FLAG_UPDATE_CURRENT as the last option when scheduling a new alarm.
PendingIntent pendingIntent = PendingIntent.getBroadcast(PreferenceHelper.getContext(), 0, myIntent, 0, PendingIntent.FLAG_UPDATE_CURRENT);
Possible duplicate Cancel an AlarmManager pendingIntent in another pendingintent

how to link multiple alarmManagers with different notifications in OnReceive?

I want to fire different notifications when a specific alarmManager is reached.
For example I want to display "independence day" when we reach the date of Independence stored in a certain alarmManager, and to display "Steve jobs died" when we reach the date of his death stored in another Alarm Manager, and so on.
So my question is how to link each alarmManager(cal and cal2) with different notification?
I did this until now,
in MainActivity:
Calendar cal = Calendar.getInstance();
cal.set(Calendar.DATE,19);
cal.set(Calendar.MONTH,11);
cal.set(Calendar.YEAR,2015);
cal.set(Calendar.HOUR_OF_DAY, 21);
cal.set(Calendar.MINUTE, 42);
cal.set(Calendar.SECOND, 30);
Calendar cal2 = Calendar.getInstance();
cal2.set(Calendar.DATE,19);
cal2.set(Calendar.MONTH,11);
cal2.set(Calendar.YEAR,2015);
cal2.set(Calendar.HOUR_OF_DAY, 21);
cal2.set(Calendar.MINUTE, 43);
cal2.set(Calendar.SECOND, 10);
Intent alertIntent = new Intent(this, AlertReceiver.class);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), PendingIntent.getBroadcast(this, 1, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT));
alarmManager.set(AlarmManager.RTC_WAKEUP, cal2.getTimeInMillis(), PendingIntent.getBroadcast(this, 2, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT));
notice that I made to dates to fire notification and it is working, the notification in onReceive was fired twice, the first time when I reach "cal" and for the second time when I reach "cal2". But as I mentioned above, I need to fire a different notification when I reach cal2
this is the OnReceive:
public class AlertReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
createNotification(context, "title1", "independence day", "event of today");
//here i want to link this notification with AlarmManager containing Cal as a date
createNotification(context, "title2", "steve jobs died", "event of today");
//here i want to link this notification with AlarmManager containing Cal2 as a date
}
public void createNotification(Context context, String msg, String msgText, String msgAlert) {
PendingIntent notificIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);
NotificationCompat.Builder mBuilder=new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.not)
.setContentTitle(msg)
.setTicker(msgAlert)
.setContentText(msgText);
//intent to fire when notification clicked on
mBuilder.setContentIntent(notificIntent);
//how the person will be notified
mBuilder.setDefaults(NotificationCompat.DEFAULT_SOUND);
//cancel notification when clicked in the taskbar
mBuilder.setAutoCancel(true);
NotificationManager mNotificationManager= (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0,mBuilder.build());
}
after applying what mentioned below: i made this 4 events:
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alertIntent = new Intent(this, AlertReceiver.class);
alertIntent.putExtra("title", "event1");
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), PendingIntent.getBroadcast(this, 1, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent2 = new Intent(this, AlertReceiver.class);
alertIntent2.putExtra("title", "event2");
alarmManager.set(AlarmManager.RTC_WAKEUP, cal2.getTimeInMillis(), PendingIntent.getBroadcast(this, 2, alertIntent2, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent3 = new Intent(this, AlertReceiver.class);
alertIntent3.putExtra("title", "event3");
alarmManager.set(AlarmManager.RTC_WAKEUP, cal3.getTimeInMillis(), PendingIntent.getBroadcast(this, 3, alertIntent3, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent4 = new Intent(this, AlertReceiver.class);
alertIntent4.putExtra("title", "event4");
alarmManager.set(AlarmManager.RTC_WAKEUP, cal4.getTimeInMillis(), PendingIntent.getBroadcast(this, 4, alertIntent3, PendingIntent.FLAG_UPDATE_CURRENT));
and in OnReceive:
createNotification(context,intent.getStringExtra("title"), "event", " event");
sometimes for the first time running the application all the events appear, sometimes the 3rd appear twice, and the first two do not appear, sometimes just the last one appear, so there is something wrong or messy in my code,
whats the problem?
calendar:
Calendar cal = Calendar.getInstance();
cal.set(Calendar.DATE,24);
cal.set(Calendar.MONTH,11);
cal.set(Calendar.YEAR,2015);
cal.set(Calendar.HOUR_OF_DAY, 23);
cal.set(Calendar.MINUTE, 55);
cal.set(Calendar.SECOND, 10);
Calendar cal2 = Calendar.getInstance();
cal2.set(Calendar.DATE,24);
cal2.set(Calendar.MONTH,11);
cal2.set(Calendar.YEAR,2015);
cal2.set(Calendar.HOUR_OF_DAY, 23);
cal2.set(Calendar.MINUTE, 55);
cal2.set(Calendar.SECOND, 20);
Calendar cal3 = Calendar.getInstance();
cal3.set(Calendar.DATE,24);
cal3.set(Calendar.MONTH, 11);
cal3.set(Calendar.YEAR,2015);
cal3.set(Calendar.HOUR_OF_DAY, 23);
cal3.set(Calendar.MINUTE, 55);
cal3.set(Calendar.SECOND, 30);
Calendar cal4 = Calendar.getInstance();
cal4.set(Calendar.DATE,24);
cal4.set(Calendar.MONTH, 11);
cal4.set(Calendar.YEAR,2015);
cal4.set(Calendar.HOUR_OF_DAY, 23);
cal4.set(Calendar.MINUTE, 55);
cal4.set(Calendar.SECOND, 40);

You can pass that information along with the intent while scheduling the alarm.
Intent alertIntent = new Intent(this, AlertReceiver.class);
alertIntent.putExtra("Notification Key", 1);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), PendingIntent.getBroadcast(this, 1, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT));
And in your onReceive check the value and show the notification based on that:
Integer notificationId = intent.getIntExtra("Notification Key", -1);
if (notificationId == 1)
{
// Show indipendente day
}
else
{
// do something else
}
Instead of passing integer value, you can also pass the notification message and show it directly without any if...else condition.
Passing string data:
alertIntent.putExtra("Notification Key", "Independence day");
Getting string back:
String message = intent.getStringExtra("Notification Key");
// Calling the notification
createNotification(context, "title1", message, "event of today");

You could make different intents and make
intent.putExtra("title","independence day");
and also make a separate id for every notification you could do it like this.
alertIntent.putExtra("id", 1);
and in onReceive change to:
createNotification(context, intent.getStringExtra("title"), "event", " event",intent.getIntExtra("id", 0));
and the method
public void createNotification(Context context, String msg, String msgText, String msgAlert,int id) {
//your code and change this line bellow
mNotificationManager.notify(id,mBuilder.build());
}
so it will look like this:
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alertIntent = new Intent(this, MyReceiver.class);
alertIntent.putExtra("title", "event1");
alertIntent.putExtra("id", 1);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), PendingIntent.getBroadcast(this, 1, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent2 = new Intent(this, MyReceiver.class);
alertIntent2.putExtra("title", "event2");
alertIntent2.putExtra("id", 2);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal2.getTimeInMillis(), PendingIntent.getBroadcast(this, 2, alertIntent2, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent3 = new Intent(this, MyReceiver.class);
alertIntent3.putExtra("title", "event3");
alertIntent3.putExtra("id", 3);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal3.getTimeInMillis(), PendingIntent.getBroadcast(this, 3, alertIntent3, PendingIntent.FLAG_UPDATE_CURRENT));
Intent alertIntent4 = new Intent(this, MyReceiver.class);
alertIntent4.putExtra("title", "event4");
alertIntent4.putExtra("id", 4);
alarmManager.set(AlarmManager.RTC_WAKEUP, cal4.getTimeInMillis(), PendingIntent.getBroadcast(this, 4, alertIntent4, PendingIntent.FLAG_UPDATE_CURRENT));

Repeating Alarmmanager to stop at quite/night hours

I have an alarmmanager set to fire every 3 hours a day and its working fine. Now my problem is i dont want alarmmanager to fire at night hours i.e from 9pm to 9am on next day.
My code:
Intent myIntent = new Intent(context, MyScheduledReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);
//PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
long interval = 3*60*60*1000;
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), interval, pendingIntent);
and to stop this alarmmanager repeating, i used this snippet to stop manually.
Intent myIntent = new Intent(context, MyScheduledReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
Now how do i check if the time is in night hours or at day hours?

android how to set the phone alarm through code

I want to set the alram for phone through program coding. I have an button where by clicking DatePicker come & also time picker. I want what time i set here that time should be set in phones alaram. How can I do that . plz give me the answer . Thank you

Please try this....
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, 0);
cal.set(Calendar.HOUR_OF_DAY, 9);
cal.set(Calendar.MINUTE, 01);
cal.set(Calendar.SECOND, 0);
Intent intent = new Intent(Alarm.this, Alarm1.class);
PendingIntent sender = PendingIntent.getBroadcast(this, 1234567, intent, 0);
PendingIntent sende2 = PendingIntent.getBroadcast(this, 123123, intent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);
am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sende2);
Intent intent1 = new Intent(Alarm.this, Alarm1.class);
PendingIntent sender1 = PendingIntent.getBroadcast(this, 1234567, intent1, 0);
AlarmManager am1 = (AlarmManager) getSystemService(ALARM_SERVICE);
am1.cancel(sender1);
b1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Alarm a = new Alarm ();
a.setAlarm();
b1.setText(prod);
}
});