从通知中心移除远程通知 [英] Remove remote notification from Notification Center

问题描述

如果您在别处查看通知，某些应用程序，特别是 StackExchange 应用程序和 Facebook 能够从通知中心/锁屏中删除通知.例如，如果我从堆栈交换收到收件箱通知，然后在我的笔记本电脑上查看我的收件箱，通知几乎立即从我的手机上消失.最初我认为这是 Apple 可以通过 Mail 和 Facebook 做到的事情.

Some apps, specifically the StackExchange app and facebook are able to remove notifications from the Notification Center/Lockscreen if you view the notification elsewhere. For example if I get an inbox notification from stack exchange and then view my inbox on my laptop the notification disappears almost immediately from my phone. Originally I thought this was something just Apple could do with Mail and Facebook.

StackExchange 如何向手机发送通知以删除现有通知?

How does StackExchange send a notification to the phone to remove an existing notification?

推荐答案

我认为他们所做的就是发送一个标记编号为0"的通知，以从通知中心清除所有现有的通知.我在 Gmail 应用程序上注意到了相同的行为，因此我对其进行了一些小型研究:

I think that what they do is to send a notification with a badge number of '0' to clear all the existing ones from the notification center. I have noticed the same behavior on the Gmail app, so I did some small research about it:

• 当我发送一封电子邮件时，我会在手机上收到推送通知.然后我从笔记本电脑的浏览器打开那封电子邮件，通知中心立刻就清晰了.

• When I send one email, I receive a push notification on my phone. Then I open that email from my laptop's browser, and straight away the notification center is clear.

当我发送两封电子邮件时，我会收到两个推送通知.然后，当我在笔记本电脑上打开第一个通知时，两个通知仍然保留在我的 iPhone 上.在我打开第二封电子邮件(仍在我的笔记本电脑上)后，通知中心被清除.

When I send two emails, I receive two push notifications. Then, when I open the first one on my laptop, both notifications still remain on my iPhone. After I open the second email (still on my laptop) the notification center gets cleared.

我对 Wireshark 进行了一些额外检查，我认为每次我在笔记本电脑上打开电子邮件时，Google 都会向我的手机发送推送通知(即使我的收件箱中仍有未读邮件).

I did some extra checks with Wireshark and I think that every time that I open an email on my laptop, Google sends a push notification to my phone (even if there are still unread messages in my inbox).

在上述所有情况下，gmail 应用未运行(但我不确定 iOS 7 中引入的后台提取是否会使事情复杂化).

In all the above cases, the gmail app was not running (however I'm not sure if the background fetch introduced on iOS 7 can complicate things).

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