I have searched from the internet a lot and tried many examples . I can successfully add event to the calendar through my application but I can't delete this event programatically. Here are the samples I have tried that I cant end up a successful result .
tokens[1] is event id.
1)
Uri eventsUri = Uri.parse(getCalendarUriBase()+"events");
Uri eventUri = ContentUris.withAppendedId(eventsUri, Long.parseLong(tokens[1]));
getContentResolver().delete(eventUri, null, null);
2)
ContentResolver cr = FlightOperationsCancelTicketFee.this.getContentResolver();
Uri EVENTS_URI = Uri.parse("content://com.android.calendar/" + "events");
deleteEvent(cr, EVENTS_URI, 1);
private void deleteEvent(ContentResolver resolver, Uri eventsUri, int calendarId)
{
Cursor cursor;
if (android.os.Build.VERSION.SDK_INT <= 7)
{
cursor = resolver.query(eventsUri, new String[]{ "_id" }, "Calendars_id=" + calendarId, null, null);
}
else
{
cursor = resolver.query(eventsUri, new String[]{ "_id" }, "calendar_id=" + calendarId, null, null);
}
while(cursor.moveToNext())
{
long eventId = cursor.getLong(cursor.getColumnIndex("_id"));
resolver.delete(ContentUris.withAppendedId(eventsUri, eventId), null, null);
}
cursor.close();
}
3)
ContentResolver cr = getContentResolver();
String calUriString = "content://com.android.calendar/events";
Uri cal=Uri.parse(calUriString);
String[] EVENT_PROJECTION=new String[]{"calendar_id","title","dtstart","_id"};
Uri eventsUri = Uri.parse(getCalendarUriBase()+"events");
Uri eventUri =ContentUris.withAppendedId(eventsUri, Long.parseLong(tokens[1]));
String reminderUriString = "content://com.android.calendar/reminders";
Uri remUri =Uri.parse(reminderUriString);
cr.delete(remUri, "event_id="+Commons.event_id, null);
cr.delete(eventUri, null, null);
4)
Uri eventsUri = Uri.parse(getCalendarUriBase()+"events");
Uri eventUri = ContentUris.withAppendedId(Events.CONTENT_URI, Long.parseLong(tokens[1]));
getContentResolver().delete(eventUri, null, null);
None of the above does work . I need help . Thank you .. Edit : I think I can't send the right context , is there a way to keep context via shared preferences ? However , it only keeps String and Int values . Is there another way to do something like this ?
Use this code,It worked for me:
Uri deleteUri = null;
deleteUri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, Long.parseLong(String.valueOf(eventID)));
int rows = getContentResolver().delete(deleteUri, null, null);
Toast.makeText(this, "Event deleted", Toast.LENGTH_LONG).show();
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