How to set a reminder in Android

Question

I am trying to build a calendar app for Android  I am struck in the middle  I have managed to retrieve the information such as time and task from the user   I don t know how to add this into android events  Is there anything like setEvent or something similar

User · Answer

You can use AlarmManager in coop with notification mechanism Something like this:

Intent intent = new Intent(ctx, ReminderBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) ctx.getSystemService(Activity.ALARM_SERVICE);
// time of of next reminder. Unix time.
long timeMs =...
if (Build.VERSION.SDK_INT < 19) {
    am.set(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
} else {
    am.setExact(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
}

It starts alarm.

public class ReminderBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(...)
                .setContentTitle(..)
                .setContentText(..);
        Intent intentToFire = new Intent(context, Activity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intentToFire, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);
        NotificationManagerCompat.from(this);.notify((int) System.currentTimeMillis(), builder.build());
    }
}

User · Answer

Android complete source code for adding events and reminders with start and end time format       Adds Events and Reminders in Calendar     private void addReminderInCalendar         Calendar cal   Calendar getInstance        Uri EVENTS URI   Uri parse getCalendarUriBase true     events        ContentResolver cr   getContentResolver        TimeZone timeZone   TimeZone getDefault             Inserting an event in calendar         ContentValues values   new ContentValues        values put CalendarContract Events CALENDAR ID  1       values put CalendarContract Events TITLE   Sanjeev Reminder 01        values put CalendarContract Events DESCRIPTION   A test Reminder         values put CalendarContract Events ALL DAY  0          event starts at 11 minutes from now     values put CalendarContract Events DTSTART  cal getTimeInMillis     11   60   1000          ends 60 minutes from now     values put CalendarContract Events DTEND  cal getTimeInMillis     60   60   1000       values put CalendarContract Events EVENT TIMEZONE  timeZone getID         values put CalendarContract Events HAS ALARM  1       Uri event   cr insert EVENTS URI  values           Display event id     Toast makeText getApplicationContext     Event added    ID        event getLastPathSegment    Toast LENGTH SHORT  show             Adding reminder for event added         Uri REMINDERS URI   Uri parse getCalendarUriBase true     reminders        values   new ContentValues        values put CalendarContract Reminders EVENT ID  Long parseLong event getLastPathSegment          values put CalendarContract Reminders METHOD  Reminders METHOD ALERT       values put CalendarContract Reminders MINUTES  10       cr insert REMINDERS URI  values          Returns Calendar Base URI  supports both new and old OS     private String getCalendarUriBase boolean eventUri        Uri calendarURI   null      try           if  android os Build VERSION SDK INT  lt   7                calendarURI    eventUri    Uri parse  content   calendar      Uri parse  content   calendar calendars              else               calendarURI    eventUri    Uri parse  content   com android calendar      Uri                      parse  content   com android calendar calendars                    catch  Exception e            e printStackTrace              return calendarURI toString        Add permission to your Manifest file    lt uses-permission android name  android permission READ CALENDAR    gt   lt uses-permission android name  android permission WRITE CALENDAR    gt

User · Answer

Nope  it is more complicated than just calling a method  if you want to transparently add it into the user s calendar   You ve got a couple of choices    Calling the intent to add an event on the calendar This will pop up the Calendar  application and let the user add the event  You can pass some parameters to prepopulate fields   Calendar cal   Calendar getInstance                  Intent intent   new Intent Intent ACTION EDIT   intent setType  vnd android cursor item event    intent putExtra  beginTime   cal getTimeInMillis     intent putExtra  allDay   false   intent putExtra  rrule    FREQ DAILY    intent putExtra  endTime   cal getTimeInMillis   60 60 1000   intent putExtra  title    A Test Event from android app    startActivity intent     Or the more complicated one  Get a reference to the calendar with this method  It is highly recommended not to use this method  because it could break on newer Android versions    private String getCalendarUriBase Activity act         String calendarUriBase   null      Uri calendars   Uri parse  content   calendar calendars        Cursor managedCursor   null      try           managedCursor   act managedQuery calendars  null  null  null  null         catch  Exception e              if  managedCursor    null            calendarUriBase    content   calendar          else           calendars   Uri parse  content   com android calendar calendars            try               managedCursor   act managedQuery calendars  null  null  null  null             catch  Exception e                      if  managedCursor    null                calendarUriBase    content   com android calendar                        return calendarUriBase      and add an event and a reminder this way      get calendar Calendar cal   Calendar getInstance         Uri EVENTS URI   Uri parse getCalendarUriBase this     events    ContentResolver cr   getContentResolver        event insert ContentValues values   new ContentValues    values put  calendar id   1   values put  title    Reminder Title    values put  allDay   0   values put  dtstart   cal getTimeInMillis     11 60 1000      event starts at 11 minutes from now values put  dtend   cal getTimeInMillis   60 60 1000      ends 60 minutes from now values put  description    Reminder description    values put  visibility   0   values put  hasAlarm   1   Uri event   cr insert EVENTS URI  values       reminder insert Uri REMINDERS URI   Uri parse getCalendarUriBase this     reminders    values   new ContentValues    values put   event id   Long parseLong event getLastPathSegment      values put   method   1    values put   minutes   10    cr insert  REMINDERS URI  values      You ll also need to add these permissions to your manifest for this method    lt uses-permission android name  android permission READ CALENDAR    gt   lt uses-permission android name  android permission WRITE CALENDAR    gt     Update  ICS Issues  The above examples use the undocumented Calendar APIs  new public Calendar APIs have been released for ICS  so for this reason  to target new android versions you should use CalendarContract   More infos about this can be found at this blog post

[android] How to set a reminder in Android?

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