在Android和iOS上使用GCM，而无需通知有效内容 [英] Using GCM on both Android and iOS without a notification payload

问题描述

我想通过Google Cloud Messaging在Android和iOS上实施推送通知。

I want to implement push notifications on both Android and iOS with Google Cloud Messaging.

我不想使用通知键，因为Android的行为并不理想。在Android上，我更喜欢我的接收器总是通过 data 有效载荷触发，我可以自己构造 Notification 使用 NotificationCompat 。例如，如果您在Android上使用通知有效载荷，则无法控制通知样式。

I don't want to use the notification key in my payload because the Android behavior is not ideal. On Android, I would prefer my receiver to always get triggered with the data payload, and I can construct the Notification myself using NotificationCompat. If you use the notification payload on Android, you have no control over the notification style, for example.

然而， ，如果我只发送一个数据有效载荷，我认为我的iOS应用程序如果它是后台 - 死亡，从设备重启以来从未启动等等，我不会收到推送。对于GCM，哪个 content_available 标志可能触发推送？

However, if I only send a data payload, I think my iOS app will not receive the push if it is backgrounded - killed, never launched since device restart, etc. I think there's that content_available flag for GCM which may trigger the push anyway?

我是否可以在iOS上复制总是在通知后执行我的应用内代码的Android行为？我会很好地根据GCM data 有效载荷构建我自己的iOS通知，也许使用类似于 UILocalNotification ，但从我读的内容来看，iOS需要存在通知有效载荷以确保推送总是被用户接收。

Am I, on iOS, able to duplicate the Android behavior of always having my in-app code execute upon notification? I'd be fine constructing my own iOS notification based on the GCM data payload, and perhaps using something like a UILocalNotification, but from what I'm reading, iOS is requiring the notification payload to exist to make sure the push is always received by the user.

我可以在iOS上获得这种控制吗？

Can I get this kind of control on iOS?

推荐答案

从我的研究中，无法避免使用通知有效负载。但是，如果不是创建扩展 GcmListenerService 的 MyGcmListenerService ，则可以摆脱自动创建通知的默认Android行为。 c $ c>，你可以创建自己的 GcmListenerService ，并且可以扩展原来的 Service 。

From my research, it seems that you can't avoid using the notification payload. However, you can get rid of the default Android behavior of auto-creating a notification, if, instead of creating a MyGcmListenerService that extends GcmListenerService, you create your own GcmListenerService and extend plain old Service.

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