Can I override default push notification icon in android from app icon to custom icon?

Question

Can I override default push notification icon in android from app icon to custom icon?

I am using default firebase implementation to display notification in system tray,

Answer 1

Builder class for Notification objects. Provides a convenient way to set the various fields of a Notification and generate content views using the platform's notification layout template. Check Official Documentation here

 Notification noti = new Notification.Builder(mContext)
     .setContentTitle("New mail from " + sender.toString())
     .setContentText(subject)
     .setSmallIcon(R.drawable.new_mail)
     .setLargeIcon(aBitmap)
     .build();

Here you can set custom fields including Icon for your notifications.

Cheers! Happy Coding