Add reminders in all events in Android calendar

This example adds a reminder to an event. The reminder fires 10 minutes before the event.

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 permission to your manifest for this method:

<uses-permission android:name="android.permission.READ_CALENDAR" />

<uses-permission android:name="android.permission.WRITE_CALENDAR" />