FCM/GCM JSON有效负载-如何指定大图标? [英] FCM/GCM JSON payload - How to specify a large icon?

问题描述

我正在使用Firebase端点发送推送通知.运行正常.我正在使用邮递员将请求发送到FCM.我的问题是我不知道如何使用它发送大图标.

I am sending a push notification using firebase endpoint. It is working successfully. I am using postman to send the request to FCM. My issue is I do not understand how to send a large icon with it.

FCM可以发送两种类型的有效负载.数据有效载荷和通知有效载荷. 请参见此处.我专注于通知有效负载.如何指定要显示的本地大图标?我知道我可以使用元数据以这种方式在清单中指定默认的通知图标:

FCM has two types of payloads you can send. Data payloads and notification payloads. See here. I'm focusing on notification payloads. How do I specify a local large icon to show ? I know I can specify a default notification icon in the manifest this way using metadata:

<meta-data
        android:name="com.google.firebase.messaging.default_notification_icon"
        android:resource="@drawable/mylogo" />
<meta-data
        android:name="com.google.firebase.messaging.default_notification_color"
        android:resource="@color/mycolor" />

但这是一个小图标.如何指定我要使用的大图标?

But this is for a small icon. How do I specify LARGE icon I'd like to use ?

在我上面为FCM提供的文档中，有一个类似于以下示例:

In the documentation I provided above for FCM, there is a example that looks like this:

{
    "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1...",
    "notification" : {
        "body" : "great match!",
        "title" : "Portugal vs. Denmark",
        "icon" : "myicon"
    }
}

但这是用于小图标的.怎么做大图标?

but this is for small icon. how to do large icon?

一个大图标看起来像这样:

A large icon looks like this:

推荐答案

FCM没有用于设置大图标的API.

FCM doesn't have an API to set a large-icon.

如果要实现此目的，可以发送带有自定义有效负载的data-message，并在onMessageReceived()

If you want to achieve that you can send a data-message with custom payload, and create your own local notification inside onMessageReceived()

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