Add date to Events.EXDATE.

Question

I want to add the date of the exception Events.EXDATE , but I am adding it, but this does not affect. I also read here the android: EXDATE format when adding a calendar event

I also do a test by doing a daily event and deleting one of them. Finally, I get the data in the Events.EXDATE column, but it is always null.

Update: now I can add exDate, but Android can only allow us to add one day , I want to add more than a day ,

Has anyone done this before? Thank you for reading.

  ContentValues values = new ContentValues(); values.put(Events.EVENT_TIMEZONE, "Asia/Seoul"); if(calendar_Id!=-1){ values.put(Events.CALENDAR_ID, calendar_Id); } for(String exDate : event.getExDatesList()){ values.put(Events.EXDATE, exDate); } if(!username.equals("")){ values.put(Events.ORGANIZER, username); } if(event.getSummarry()!=null){ values.put(Events.TITLE, event.getSummarry()); } if(event.getDescription()!=null){ values.put(Events.DESCRIPTION, event.getDescription()); } if(event.getDateStart()!=null){ values.put(Events.DTSTART, CaldavGlobalVar.convertTIMEtomilisecond(event.getDateStart(), event.getAllDay())); } if(event.getDateEnd()!=null){ values.put(Events.DTEND, CaldavGlobalVar.convertTIMEtomilisecond(event.getDateEnd(), event.getAllDay())); } if(event.getLocation()!=null&&!event.getLocation().equals("")){ values.put(Events.EVENT_LOCATION, event.getLocation()); } values.put(Events.ALL_DAY, event.getAllDay());