I am using AlarmManager for my Timer. I have 2 classes.
In the first class (MainActivity) I am starting my alarm with the next code:
public void startAlarm(long Seconds) {
Intent myIntent = new Intent(MainActivity.this, MyAlarmService.class);
pendingIntent = PendingIntent.getService(MainActivity.this, 13141337,
myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, (int) Seconds);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
pendingIntent);
}
In another class (AlarmSound), where the alarm goes off and the phone vibrates, I'm calling my cancel Alarm method.
public void stopAlarm(){
Intent intentstop = new Intent(AlarmSound.this, MyAlarmService.class);
PendingIntent senderstop = PendingIntent.getBroadcast(AlarmSound.this,
13141337, intentstop, 0);
AlarmManager myalarm = (AlarmManager) getSystemService(ALARM_SERVICE);
myalarm.cancel(senderstop);
Log.w("Karl","stopAlarm?");
}
Is this the correct way to do this? Because my alarm constantly goes off on android 4.1.
Thanks in advance!
Your Cancel wont work. The pending Intents have to match - since they have a different context (MainActivity and AlarmSound) this cancel wont work. You have to also use getService on both.
You can
a) try to recreate a matching pending Intent
b) get the pendingIntent that started the Service in the Service and use that to cancel
But usually every Alarm just goes off once if you dont use setRepeating().
Are you sure you are terminating your Service correctly with stopself() and are giving it the right flag in the onStartCommand() Method?
Related
I know this is very simple and can do anyone but i m stuck in this plz help where i did mistake
one think very important i start from one.class and stop in second.class and i can do stop after 3rd or 4th day of start.
i start alarm like this
//set Alarm method
private void SetAutoCleanningService()
{
long when= System.currentTimeMillis() + 1000*20;
long repeattime =Constant.NOTIFICATION_TimeDiff;
if(Constant.IsDebug)
System.out.println("time to trigger is ="+getDate(when, "dd/MM/yyyy hh:mm:ss.SSS"));
Intent intent = new Intent(this, AutoCleaningBroadCast.class);
intent.setAction("systweak.AutoCleanningBroadCast");
PendingIntent pendingIntent = PendingIntent.getBroadcast(ApplicationSetting.this,1234567, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, when, repeattime,pendingIntent);
}
And stop like this
//close Alarm method
private void StopEarlierAlarm() {
// TODO Auto-generated method stub
AlarmManager aManager = (AlarmManager) getSystemService(ALARM_SERVICE);
Intent intent = new Intent(getBaseContext(), AutoCleaningBroadCast.class);
PendingIntent pIntent = PendingIntent.getBroadcast(ApplicationSetting.this, 1234567, intent,0);
aManager.cancel(pIntent);
}
i use same request code but cant able to stop and on every alarm i show one notification that will be repeat in every alarm calling
You can cancel the alarm like this:
Intent intent = new Intent(this, Mote.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 1352, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
Also, you should remove Intent.FILL_IN_DATA from your call to getBroadcast() in the code where you set the alarm.
Cancel your PendingIntent too.
pIntent.cancel();
Make sure context used in creating intent is same.
If not possible to use same Context, then create intent as a global Static variable and use later.
Check this, it may help you
Step 1:initialize the alarm manager.
AlarmManager alarmManager1;
Step 2:
// for Notification Process
Intent myIntent1 = new Intent(Settings.this,MyNotificationService.class);
pendingintent2 = PendingIntent.getService(SettingsPage.this, 2, myIntent1, 2);
alarmManager1 = (AlarmManager) getSystemService(ALARM_SERVICE);
Calendar calendar1Notify = Calendar.getInstance();
calendar1Notify.setTimeInMillis(System.currentTimeMillis());
calendar1Notify.set(Calendar.HOUR_OF_DAY, 8);
calendar1Notify.set(Calendar.MINUTE, 15);
alarmManager1.set(AlarmManager.RTC_WAKEUP,calendar1Notify.getTimeInMillis(), pendingintent2);
long time24h = 24 * 60 * 60 * 1000;
alarmManager1.setInexactRepeating(AlarmManager.RTC_WAKEUP,calendar1Notify.getTimeInMillis(), time24h,pendingintent2);
Step 3-Stop alarm manager:
alarmManager1.cancel(pendingintent2);
I am trying to set repeating alarms in an exact fashion by manually setting an alarm to the next day the moment I receive it in a broadcast. However, I might be missing something and somehow its not working.
The Logic:
When I select the time from a time chooser, I set an exact alarm to the time given and start a pending intent which calls MyBroadCastReceiver.java (extends BroadcastReceiver) when its time. I then forward the intent with another pending intent to AlarmFireActivity. (AlarmFireActivity also has snooze which simply sets a pendingIntent to itself to fire after 5 mins.)
The MyBroadCastReceiver component hence only receives the actual alarms (not snoozes). And its functions are :
a) Get the non-repeating pending intent cancel it, then create another pending intent from the intent and then set it with the milliseconds set to the next day at the same time.
b) Start the AlarmFireActivity and show the alarm.
In AddAlarmActivity
Intent intent = new Intent(context, MyBroadcastReceiver.class);
intent.putExtra(DBHelper.COLUMN_ID,alarm.getId());
AlarmManager alarmManager = (AlarmManager) context.getApplicationContext().getSystemService(Context.ALARM_SERVICE);
if (alarmManager != null) {
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, reminder.getId(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, reminder.getHourOfDay());
calendar.set(Calendar.MINUTE, reminder.getMinuteOfHour());
calendar.set(Calendar.SECOND,0);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
pendingIntent);
BLog("Pending intent added at " + new SimpleDateFormat(utilFunctions.timeFormat).format(calendar.getTime()));
}
Snippet MyBroadCastReceiver.java TaskOne
Logic
Get the intent which MyBroadCastReceiver receives. Reuse the same intent in a new PendingIntent set to the next day at the same time.
Code
AlarmManager alarmManager = (AlarmManager) context.getApplicationContext().getSystemService(Context.ALARM_SERVICE);
if (alarmManager != null) {
PendingIntent p1 = PendingIntent.getBroadcast(context, alarmCurrent.getReminderId(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
if(p1!=null){
alarmManager.cancel(p1);
}
PendingIntent pendingIntent1 = PendingIntent.getBroadcast(context, alarmCurrent.getReminderId(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
//for test
calendar.add(Calendar.MINUTE,1);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
pendingIntent1);
}
MyBroadCastReceiver.java TaskTwo
Logic
If the time when the alarm was set was after the time the alarm is due, do not forward the pending intent to the AlarmFireActivity.
Else forward it to the AlarmFireActivity which shows the screen to dismiss/snooze the alarm.
Code
Calendar timeSet = alarmCurrent.getAlarmReminderSetTime();
Calendar alarmTime = Calendar.getInstance();
if(timeSet!=null && alarmTime.getTimeInMillis() > timeSet.getTimeInMillis()){
Intent intent1 = new Intent(context, AlarmFireActivity.class);
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent1.putExtra(DBHelper.COLUMN_ID,id);
String ext = extras.getString(DBHelper.TASK_TITLE);
if(ext!=null){
intent1.putExtra(DBHelper.TASK_TITLE,ext);
}
context.startActivity(intent1);
}else{
}
The BroadCastReceiver is doing the second task just fine. However, not the task one. Its not repeating/ resetting a new pending intent. I am guessing I must have messed up the intent/pendingIntent somewhere. I dont know which. Please help/
The solution is restart the phone. I have seen somewhere that there is a bug in a one of the os' 4.3 or so. A pending intent with a request id of 0 might fail at times. And once I restarted the phone it worked. However, there is a more standard solution which is :
Replacing
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, reminder.getId(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
with
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, A_NUMBER_GREATER_THAN_ZERO + reminder.getId(), intent, PendingIntent.FLAG_UPDATE_CURRENT);
so that you are avoiding a pending intent with 0 at all times. Thanks all!
in my task application, i want to create alarm service for multiple items. Here is the code i followed to create service. Lets assume, if there are more than 5 items present in list. then we will sent alarm service for 5 different times.
What if the user comes and edits the time?, how to update the system and make sure it triggers at new instance?. What if the user delete the task, how to quickly removes the registered alram for the deleted task?
What about uninstalling the app?, how to clear all the entries?, what if the system re-boots?
This is the code i'm following to register the task in alram services
Calendar Calendar_Object = Calendar.getInstance();
Calendar_Object.set(Calendar.MONTH, 8);
Calendar_Object.set(Calendar.YEAR, 2012);
Calendar_Object.set(Calendar.DAY_OF_MONTH, 6);
Calendar_Object.set(Calendar.HOUR_OF_DAY, 14);
Calendar_Object.set(Calendar.MINUTE, 25);
Calendar_Object.set(Calendar.SECOND, 0);
Step 2:
We need to create an alarm which help us to invoke the BroadCastReceiver on our specified time.
// MyView is my current Activity, and AlarmReceiver is the BoradCastReceiver
Intent myIntent = new Intent(MyView.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
MyView.this, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
/*
The following sets the Alarm in the specific time by getting the long value of the alarm date time which is in calendar object by calling the getTimeInMillis(). Since Alarm supports only long value , we're using this method.
*/
alarmManager.set(AlarmManager.RTC, Calendar_Object.getTimeInMillis(),
pendingIntent);
Use this method to set Alarm :
public static void startAlarm(Context context, int alarm_code, String time) {
String[] arrTime = time.split(":");
intent = new Intent(context, AlarmReceiver.class);
intent.putExtra("CODE", alarm_code);
PendingIntent mAlarmSender = PendingIntent.getBroadcast(context,
alarm_code, intent, 0);
Calendar cal_alarm = Calendar.getInstance();
cal_alarm.setTimeZone(TimeZone.getDefault());
cal_alarm.set(Calendar.HOUR_OF_DAY, Integer.parseInt(arrTime[0]));
cal_alarm.set(Calendar.MINUTE, Integer.parseInt(arrTime[1]));
AlarmManager am = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
am.setRepeating(AlarmManager.RTC_WAKEUP, cal_alarm.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, mAlarmSender);
}
Here,"int alarm_code" is your unique code for particular item.
And for update alarm first cancel the existing alarm and set new alarm for new time.For that use this method :
public static void cancelAlarm(Context context, int alarm_code) {
AlarmManager am = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmReceiver.class);
intent.putExtra("CODE", alarm_code);
am.cancel(PendingIntent.getBroadcast(context, alarm_code, intent, 0));
}
Here,"int alarm_code" will be your unique code which you have used to set alarm.So that alarm with particular alarm_id will be cancel.You can also delete alarm with this method.
Same way you can clear all the alarms passing alarm_code to the given function.
You have to register receiver for system reboot and in onReceive of register you have to set all alarms again.
Hope this will help you.
I've tried to search around, but seems like I'm the only one who experiences such an error, so maybe someone would be able to point out what I did wrong.
I create an AlarmManager via this function:
public void startTimer() {
Intent myIntent = new Intent(MainActivity.this, MyAlarmService.class);
pendingIntent = PendingIntent.getService(MainActivity.this, 0,
myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 10);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(),
AlarmManager.INTERVAL_FIFTEEN_MINUTES / 50, pendingIntent);
Toast.makeText(MainActivity.this, "Start Alarm", Toast.LENGTH_LONG)
.show();
}
It is created as expected: OnCreate() is called then OnStart() is called.
Then I stop the timer by calling the function:
private void stopTimer() {
Intent myIntent = new Intent(MainActivity.this, MyAlarmService.class);
pendingIntent = PendingIntent.getService(MainActivity.this, 0,
myIntent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
}
And it is indeed stopped after this call.
The problem occurs afterwards, when AlarmManager's OnCreate() and OnStart() methods are called long after the app was closed with no easily seen system in those calls. Though it seems that this happens when my phone lacks free memory.
Any ideas? Thanks in advance!
Your service needs to call stopSelf() when it is done, or you need to switch to using an IntentService, which will automatically call stopSelf() when it is done. Right now, you are leaking the service, and Android is destroying and recreating it after a while.
This is the code:
public void startAlarm(Context context) {
Intent intent = new Intent(context, SyncService.class);
PendingIntent sender = PendingIntent.getService(context, 0, intent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
10 min, 20 min, sender);
}
This is my method where I start my alarm... I use it in my main activity in onCreate method... What if I change something in settings, and I want to change a time of Repeating? How to do that? I should kill that one and start new one?
If you read the docs you will notice the following:
If there is already an alarm scheduled
for the same IntentSender, it will
first be cancelled.