I know this has been asked a couple of times, but there doesn't seem to be a clear answer. I am trying to delete a single instance of a recurring event (which I created in the first place). Although it's not clear which approach to take to do this, another SO post makes sense - Delete only one instance of a recurring event from my Android calendar - update the exclusion date, EXDATE.
I have tried this with both UTC time and default timezone - in both cases the return value is 1, indicating 1 row updated, but the event instance does not disappear.
ContentValues event = new ContentValues();
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd'T'hhmmss'Z'");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
String str = sdf.format(beginTime.getTime());
//TimeZone timeZone = TimeZone.getDefault();
//event.put("eventTimezone", timeZone.getID());
event.put("exdate", str);
int numrows = getContentResolver().update(eventUri, event, "_id=? and calendar_id=?", new String[] {currentAppt.getCaleventid(), currentAppt.getCalendarid()});
Log.d(TAG, numrows + " rows updated - date was " + str);
I know the calendar id and event id are correct as I can delete all the events without a problem. The return count of 1 would also indicate it is finding the row to update.
What am I doing wrong?
