如何正确更新Android周期性日历事件

// 获取日历账户
String[] projection = {
    CalendarContract.Calendars._ID,
    CalendarContract.Calendars.ACCOUNT_NAME,
    CalendarContract.Calendars.ACCOUNT_TYPE
};

Cursor cursor = getContentResolver().query(
    CalendarContract.Calendars.CONTENT_URI,
    projection,
    null,
    null,
    null
);

// 查询事件
String[] eventProjection = {
    CalendarContract.Events._ID,
    CalendarContract.Events.TITLE,
    CalendarContract.Events.DTSTART,
    CalendarContract.Events.DTEND,
    CalendarContract.Events.RRULE
};

String selection = CalendarContract.Events.TITLE + " = ?";
String[] selectionArgs = {"My Event"};

Cursor eventCursor = getContentResolver().query(
    CalendarContract.Events.CONTENT_URI,
    eventProjection,
    selection,
    selectionArgs,
    null
);

// 更新事件
if (eventCursor != null && eventCursor.moveToFirst()) {
    long eventId = eventCursor.getLong(eventCursor.getColumnIndex(CalendarContract.Events._ID));

    ContentValues values = new ContentValues();
    values.put(CalendarContract.Events.TITLE, "Updated Event");

    Uri updateUri = ContentUris.withAppendedId(CalendarContract.Events.CONTENT_URI, eventId);
    int rows = getContentResolver().update(updateUri, values, null, null);

    if (rows > 0) {
        Log.d(TAG, "Event updated successfully");
    } else {
        Log.d(TAG, "Failed to update event");
    }
}

// 关闭游标
if (cursor != null) {
    cursor.close();
}

if (eventCursor != null) {
    eventCursor.close();
}