使用Firebase Cloud消息自定义布局

我将在Android应用中使用Firebase云消息传递功能向用户发送提醒和通知，以使他们与我的应用更加互动.

I am going to use Firebase cloud messaging in my Android App to send reminder and notifications to users to get them more engaged with my app.

因此，我希望对通知进行自定义.我已经阅读过 Cloud Messaging文档，但它仅显示了如何当应用程序在前台时，接收并生成通知.如果应用程序在后台运行，则无法进行相同的操作.如果应用程序在后台运行，则会显示一条正常通知.

For that reason, I want to have a custom look of the notification. I have gone through the Cloud Messaging documentation but it only shows how to receive and build a notification when the app is in the foreground. The same does not work if the app is in the background. If the app is in the background then a normal notification is shown.

我已经浏览了许多帖子，说我可以将通知字段保留为空白，并且可以将数据放在数据字段中，但是对我来说，主要的问题是我没有使用自定义服务器来分派通知，但我使用的是Firebase提供的默认通知编写器.

I have gone through many posts stating that I can leave the notification field blank and can put data on the data field but for me, the main problem is that I am not using my custom server to dispatch notification but I am using the Default Notification composer provided by Firebase.

是否可以使用默认Firebase Notification Composer显示自定义布局，而不管该应用程序是在前台还是在后台?

任何帮助将不胜感激.