我正在尝试使用此代码直接添加事件：
// Construct event details
long startMillis = 0;
long endMillis = 0;
Calendar beginTime = Calendar.getInstance();
beginTime.set(2013, 3, 14, 7, 30);
startMillis = beginTime.getTimeInMillis();
Calendar endTime = Calendar.getInstance();
endTime.set(2013, 3, 14, 8, 45);
endMillis = endTime.getTimeInMillis();
// Insert Event
ContentResolver cr = getContentResolver();
ContentValues values = new ContentValues();
values.put(CalendarContract.Events.DTSTART, startMillis);
values.put(CalendarContract.Events.DTEND, endMillis);
values.put(CalendarContract.Events.TITLE, "Walk The Dog");
values.put(CalendarContract.Events.DESCRIPTION, "My dog is bored, so we're going on a really long walk!");
values.put(CalendarContract.Events.CALENDAR_ID, 3);
values.put("eventTimezone", "Europe/London");
Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI, values);
// Retrieve ID for new event
String eventID = uri.getLastPathSegment();
此代码在语法上是正确的，但不会将事件添加到日历中。问题是什么？Eclipse 这么说
String eventID = uri.getLastPathSegment();
未使用。