I have many weekly-repeating events every one has a start/End dates.
it should appear every week at the same day & time.
So I want to show notification for every event on every week at a specific date&time starting from it's start Date until it's end date.
Can any one provide me with a tutorial / explanation / Links on how to implement this, please?
Take a look at the official Android docs - link here.
You need to use the setRepeating function in AlarmManager to achieve this. Create a BroadcastReceiver that creates a notification when an Intent is received. Set this Intent in a PendingIntent and give the PendingIntent to the AlarmManager#setRepeating.
Example code -
private AlarmManager alarmMgr;
private PendingIntent alarmIntent;
...
alarmMgr = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context, AlarmReceiver.class);
alarmIntent = PendingIntent.getBroadcast(context, 0, intent, 0);
// Set the alarm to start at approximately 2:00 p.m.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 14);
// With setInexactRepeating(), you have to use one of the AlarmManager interval
// constants--in this case, AlarmManager.INTERVAL_DAY.
alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, alarmIntent);
Related
Explanation:
I have calendar in which i set the events on the particular day of the given month.The event is stored into the database. on the event day is occurs it is trigger an alarm to notice the user.
suppose, my event is save on the 29/05/2016 then my alarm is triggered on the particular date.
Notice:i have multiple event created on the particular month.e.g. on the 29th may or 30th may also.
MyQuestion is how can i fire the multiple alarm on the particular multiple days.
Please, understand the flow what i exactly want?
If you want to play alarm for particular date and time , following code may help you
Calendar cal=Calendar.getInstance();
cal.set(Calendar.MONTH,5);
cal.set(Calendar.YEAR,2012);
cal.set(Calendar.DAY_OF_MONTH,11);
cal.set(Calendar.HOUR_OF_DAY,16);
cal.set(Calendar.MINUTE,10);
cal.set(Calendar.SECOND,0);
Intent _myIntent = new Intent(getApplicationContext(), ReceiverClass.class);
PendingIntent _myPendingIntent =
PendingIntent.getBroadcast(getApplicationContext(), 123, _myIntent,
PendingIntent.FLAG_UPDATE_CURRENT| Intent.FILL_IN_DATA);
AlarmManager myAlarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
//myAlarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (10 * 1000), _myPendingIntent);
myAlarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), _myPendingIntent);
calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR,date.getYear());
calendar.set(Calendar.MONTH,date.getMonth()+1);
calendar.set(Calendar.DAY_OF_MONTH,date.getDate());
calendar.set(Calendar.HOUR_OF_DAY,time.getHours());
calendar.set(Calendar.MINUTE,time.getMinutes());
calendar.set(Calendar.SECOND,time.getSeconds());
Intent myIntent = new Intent(context, AlarmReciever.class);
myIntent.putExtra("ReminderDetails",reminderDetails);
myIntent.putExtra("requestCode", requestCode);
pendingIntent = PendingIntent.getBroadcast(context, (int) (requestCode), myIntent,0);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, date.getTime(),
interval, pendingIntent);
The following code here is good live for setting a calender time at the specified time and date.
And the most important thing here stands is that what do you pass in 2nd argument in alarmManager.setInexactRepeating(_) method,which is
date.getTime(), which is the only thing will work instead of using
calendar.getTimeinMillis() method, because that will return some unexpected time to be launched for intents.
I want to start alarm when i have selecting the days,hours,and minutes.
This is my code so far :
public void startAt() {
Intent alarmIntent = new Intent(backgroundApplication.this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast(backgroundApplication.this, 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.DAY_OF_WEEK,calendar.WEDNESDAY);
calendar.set(Calendar.HOUR_OF_DAY,7);
calendar.set(Calendar.MINUTE,35);
manager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
1000 * 5, pendingIntent);
}
For the example i set the DAY_OF_WEEK is today(friday) it works great. But when i changed it into Wednesday, or other day before friday it still running.
Is there any other way to start in selected days ?
According to the documentation http://developer.android.com/reference/android/app/AlarmManager.html#setRepeating%28int,%20long,%20long,%20android.app.PendingIntent%29, the 2nd parameter is the trigger time in milliseconds and if you set it to a time in the past, the alarm will trigger immediately. If you want the alarm to only start from next Wednesday, then you have to advance your Calendar time to the next Wednesday with calendar.add(Calendar.WEEK_OF_MONTH, 1). By the way, in your code, you don't need to have calendar.setTimeInMillis(System.currentTimeMillis()).Calendar.getInstance() will return the current time by default. You should also use static field Calendar.WEDNESDAY.
How to create a AlarmManger which can be invoke on fixed date and time, This can be also repeat continuous by nature
unfortunately any of the options on the AlarmManager for repeating tasks doesn't allow such a fine control. Your best approach is to on every alarm, you re-schedule it for the next month.
PendingIntent pendingIntent = // set here your action
Calendar calendar = // set this guy to be the next 5th day
AlarmManager am = // get reference to the manager
am.set(RTC, calendar.getTimeInMillis(), pendingIntent);
on inside this Pending intent action you repeat the code. For example, let's say you want to launch a BroadcastReceiver
onReceive(Context context, Intent intent){
Calendar calendar = // set this guy to be the next 5th day
AlarmManager am = // get reference to the manager
am.set(RTC, calendar.getTimeInMillis(), pendingIntent);
}
to set the calendar object is easy:
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.MONTH, 1);
calendar.set(Calendar.DAY, 5);
I just read a good answer to do the same.
The code is-
Calendar cal=Calendar.getInstance();
cal.set(Calendar.MONTH,5);
cal.set(Calendar.YEAR,2012);
cal.set(Calendar.DAY_OF_MONTH,11);
cal.set(Calendar.HOUR_OF_DAY,16);
cal.set(Calendar.MINUTE,10);
cal.set(Calendar.SECOND,0);
Intent _myIntent = new Intent(getApplicationContext(), ReceiverClass.class);
PendingIntent _myPendingIntent = PendingIntent.
getBroadcast(getApplicationContext(), 123,
_myIntent, PendingIntent.FLAG_UPDATE_CURRENT| Intent.FILL_IN_DATA);
AlarmManager _myAlarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
//_myAlarmManager.set(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + (10 * 1000), _myPendingIntent);
_myAlarmManager.set(AlarmManager.RTC_WAKEUP,
cal.getTimeInMillis(), _myPendingIntent);
This is explained in android-alarm-setting-with-specific-date.
I'm creating an alarm application.
In my application, the user can select the days to fire the alarm, such as Sunday, Monday, so I used the Calendar class and AlarmManager to register multiple alarms.
If the selected day or days are less than the current day of the week, the alarm fires immediately.
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, getDayint); //sunday = 1
calendar.set(calendar.HOUR_OF_DAY, gethour);
calendar.set(calendar.MINUTE, getmin);
calendar.set(calendar.SECOND, 0);
calendar.set(calendar.MILLISECOND, 0);
long TIM = calendar.getTimeInMillis();
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
PendingIntent sender = PendingIntent.getBroadcast(MainActivity.this, 0, intent,PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, TIM, sender);
//repeat weekly
am.setRepeating(am.RTC,TIM, AlarmManager.INTERVAL_DAY*7, sender);
By using PendingIntent.FLAG_UPDATE_CURRENT you say that you like to have only one such alarm - so latest one wins - only one alarm weekly. And if TIM lies in past, alarm is fired immediately ( and then repeating ) So far - everything works as designed.
You may check whether TIM ( by the way, it is variable, and concention is that they shall be not uppercased like constants ) is less than System.currentTimeMillis() and add one week to it in this case
I need to prompt alarm according to the time values in DB. I came through lot of examples but confusing me. Could any body help to set a repeating alarm for given time like 2011-07-03 02:00:00:000 . and it should repeat for 5mints interval.
I suggest you create a service. The service can read the database and set the alarm using AlarmManager class. You can use the AlarmManager's set() or setRepeating() methods based on your use. http://developer.android.com/reference/android/app/AlarmManager.html#set%28int,%20long,%20android.app.PendingIntent%29
here is a sample of AlarmManager usage.
long triggerAtTime = SystemClock.elapsedRealtime() + triggerAfterTime;
AlarmManager mgr = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, YourAlarmReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);
mgr.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAtTime, pi);
YourAlarmReceiver class (usually) can be a BroadcastReceiver where your logic goes on what happens when the alarm is triggered.
There is no public API for the Calendar application, though since it is a native UI for a Google Calendar, you could push an event over to the Google Calendar via its GData API.
You can use AlarmManager class
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 10);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);