One option is to keep a central queue and use it once to deliver all notifications when an event arises.

其中的一种方法是保持一个中央队列，并在事件发生时使用它来发送所有通知。

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If coded incorrectly, it is possible for notifications to be lost, resulting in threads remaining in an idle state even though there is work in the queue to be processed.

如果编码不正确，那么可能丢失通知，导致线程保持空闲状态，尽管队列中有工作要处理。

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You can query the queue for any notifications and respond appropriately.

您可以在队列中查询任何通知，并相应地对找到的通知进行响应。

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For the time being, Google Now has no push notifications, which means you'll have to open the search app to see what it has in the queue for you.

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