带有新 Firebase 云消息传递系统的通知图标 [英] Notification Icon with the new Firebase Cloud Messaging system

问题描述

昨天，Google 在 Google I/O 上展示了基于新 Firebase 的新通知系统.我用 Github 上的示例尝试了这个新的 FCM(Firebase Cloud Messaging).

Yesterday Google presented at Google I/O the new notification system based on the new Firebase. I tried this new FCM ( Firebase Cloud Messaging ) with the example on Github.

通知的图标始终是 ic_launcher，尽管我已经声明了一个特定的可绘制对象

The icon of the notification is always the ic_launcher despite I have declared a specific drawable

为什么?下面是处理消息的官方代码

Why ? Here below the official code for handling the message

public class AppFirebaseMessagingService extends FirebaseMessagingService {

    /**
     * Called when message is received.
     *
     * @param remoteMessage Object representing the message received from Firebase Cloud Messaging.
     */
    // [START receive_message]
    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        // If the application is in the foreground handle both data and notification messages here.
        // Also if you intend on generating your own notifications as a result of a received FCM
        // message, here is where that should be initiated. See sendNotification method below.
        sendNotification(remoteMessage);
    }
    // [END receive_message]

    /**
     * Create and show a simple notification containing the received FCM message.
     *
     * @param remoteMessage FCM RemoteMessage received.
     */
    private void sendNotification(RemoteMessage remoteMessage) {

        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);

// this is a my insertion looking for a solution
        int icon = Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ? R.drawable.myicon: R.mipmap.myicon;
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(icon)
                .setContentTitle(remoteMessage.getFrom())
                .setContentText(remoteMessage.getNotification().getBody())
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);

        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
    }

}

推荐答案

不幸的是，这是 SDK 9.0.0-9.6.1 中 Firebase 通知的限制.当应用程序在后台时，启动器图标会从清单(带有必要的 Android 着色)中用于从控制台发送的消息.

Unfortunately this was a limitation of Firebase Notifications in SDK 9.0.0-9.6.1. When the app is in the background the launcher icon is use from the manifest (with the requisite Android tinting) for messages sent from the console.

但是，使用 SDK 9.8.0，您可以覆盖默认值！在您的 AndroidManifest.xml 中，您可以设置以下字段来自定义图标和颜色:

With SDK 9.8.0 however, you can override the default! In your AndroidManifest.xml you can set the following fields to customise the icon and color:

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

请注意，如果应用程序在前台(或发送数据消息)，您完全可以使用自己的逻辑来自定义显示.如果从 HTTP/XMPP API 发送消息，您还可以始终自定义图标.

Note that if the app is in the foreground (or a data message is sent) you can completely use your own logic to customise the display. You can also always customise the icon if sending the message from the HTTP/XMPP APIs.

这篇关于带有新 Firebase 云消息传递系统的通知图标的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！