Amazon Pinpoint和Ionic - 当应用程序处于后台时，推送通知不起作用 [英] Amazon Pinpoint and Ionic - Push notifications not working when app is in background
问题描述
我被要求开发一个与Amazon Pinpoint集成的示例应用程序。由于我不是开发应用程序的专家，我决定遵循这个简单教程并按照其中描述的步骤开发应用程序。唯一的区别是，我没有使用模拟器，而是在我自己的手机（小米Redmi 4x）中执行项目，而不是 GCM ，我使用了 Firebase 。
I was asked to develop a sample app integrated with Amazon Pinpoint. Since I am not a pro at developing apps, I decided to follow this simple tutorial and develop the app following the steps described in it. The only differences are that, instead of using an emulator, I executed the project in my own cell phone (a Xiaomi Redmi 4x) and instead of GCM, I used Firebase.
起初，它似乎完美无缺，但当我将应用程序移至后台并返回主屏幕时，我再也无法接收来自应用程序的推送通知。当应用程序打开并运行时，每次发送推送通知时，都会出现一个弹出窗口，标题为新通知，按钮为忽略/查看。但是在后台时，我的系统托盘中看不到任何内容！
At first, it seemed to work perfectly, but when I moved the app to the background and went back to my homescreen, I could no more receive push notifications from my app. When the app is open and running, everytime I send a push notification a pop-up appears with Title "New Notification" and buttons "Ignore"/"View". But when in background, nothing is visible in my system tray!
此外，如果有人知道代码的哪一部分负责此通知，请警告我并上传它在这里。
Also, if someone knows which part of the code is responsible for this notifications, just warn me and I upload it here.
推荐答案
好的，经过一些测试后我才开始工作（不是通过控制台，而是通过CLI）。为此，我按照我发现的一些步骤这个问题，这带我去了另外两个文件：来自亚马逊的教授如何通过CLI发送推送通知和一个简单但非常详细的phonegap-plugin教程，这个插件用于我们的Ionic应用程序来处理推送。
Okay, so after some tests I made it work (not through console, but through CLI). To do so, I followed some steps I found this question, that took me to two other documents: one from Amazon teaching how to send push notifications through CLI and a simple but very detailed tutorial of phonegap-plugin, the plugin used in our Ionic application to process the pushes.
首先，用您发送给我的github链接中的主版本替换应用中的phonegap-plugin 。
然后，将所有这些信息放在一起，我想出了如何编写包含发送推送所需信息的.json文件。以下是我使用的代码示例：
Then, putting all those information together, I figured out how to write a .json file containing the information we need to send the pushes. Here is a sample of the code I used:
{"MessageRequest": {
"Addresses": {
"YOUR_DEVICE_ADDRESS_HERE": {
"ChannelType": "GCM"
}
},
"MessageConfiguration": {
"GCMMessage": {
"RawContent":
"{\"data\":{\"title\":\"StackOverflow rocks!\",\"body\":\"Am I right?\",\"actions\":[ { \"title\":\"Yes!\", \"callback\":\"app.yes\", \"foreground\":true }, { \"title\":\"No!\", \"callback\":\"app.no\", \"foreground\":false }]}}"
}
}
}
}
如您所见，要更改推送通知中的内容，您必须编辑RawContent。为此，请使用我发送给您的phonegap-plugin教程，了解如何进行所需的更改。
As you can see, to change the content in the push notificationm, you'll have to edit it's "RawContent". To do so, use the phonegap-plugin tutorial I sent you and find out how to do the alterations you wish.
最后一步：更新插件后版本并将上面的代码保存在.json文件中（让我们称之为test.json），您可以将它发送到包含您的.json和写入的文件夹中的手机操作命令行：
Last step: once you updated your plugin version AND saved the code above in a .json file (let's call it test.json), you can send it to your phone oppening command line in the folder containing your .json and writting:
aws pinpoint send-messages --color on --region YOUR_SERVICE_REGION --cli-input-json file:///test.json
这应该可以解决问题！希望对你有效。如果有任何疑问，请告诉我！
This should do the trick! Hope it works for you. If any doubts, just let me know!
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