Question

我有一个Android应用程序，我试图在通知中添加大图我的问题是，当应用处于前台时，大图片正在工作但是当应用处于后台或关闭时，收到的通知没有图片。

我的代码：

intentNotification.addFlags(android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP);
intentNotification.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 50, intentNotification, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this.getApplicationContext())
    .setContentTitle(dataTitle)
    .setContentText(dataBody)
    //.setLargeIcon(getBitmapicon(getApplicationContext()))        
    .setSmallIcon(getNotificationIcon())
    //.setLargeIcon(icon(getApplicationContext()))
    .setStyle(new NotificationCompat.BigPictureStyle()
    .bigPicture(image))
    .setLights(Color.LTGRAY, 1000, 1000)
    .setAutoCancel(true)
    .setTicker(dataTitle)
    .setContentIntent(pendingIntent)
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));

Notification notification = notificationBuilder.build();
notification.flags = notification.flags | Notification.FLAG_SHOW_LIGHTS;
nManager.notify((int) SystemClock.currentThreadTimeMillis(), notification);

Answer 1

如果您收到通知消息，则当您的应用程序处于后台时，Firebase会自动处理这些消息如果要在后台处理消息，那么它们应该具有数据有效负载。

选中此link

android处理后台

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