public static void trackItemViewPair(long itemId) { if (preItemId != 0 && preItemId != itemId && preTime > (new Date().getTime() - ITEM_PAIR_INTERVAL_MAX)) NetworkInter.logItemViewPair(new ItemViewPair(preItemId, itemId, new Date().getTime())); preItemId = itemId; preTime = new Date().getTime(); }