How to show large icon in notification

Question

There is a small icon and a large icon in the attached image of a notification. I would like to create a similar notification. I am able to set the small icon using NotificationCompat.Builder(context).setSmallIcon(). But I am not able to set the large icon. Can anyone please help me with this.

val builder = NotificationCompat.Builder(context)
            .setAutoCancel(true)
            .setSmallIcon(R.drawable.ic_notification_icon)
            .setLargeIcon(BitmapFactory.decodeResource(context.resources, R.drawable.ic_notification_icon))
            .setStyle(NotificationCompat.BigPictureStyle()
                .bigPicture(BitmapFactory.decodeResource(context.resources, R.drawable.ic_notification_icon))
                .bigLargeIcon(BitmapFactory.decodeResource(context.resources, R.drawable.ic_notification_icon)))
            .setColor(context.getColor(R.color.colorPrimary))
            .setContentTitle(notificationTitle)
            .setContentText(notificationText)
            .setLights(Color.RED, 1000, 1000)
            .setVibrate(longArrayOf(0, 400, 250, 400))
            .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
            .setContentIntent(
                PendingIntent.getActivity(
                    context,
                    0,
                    Intent(context, SplashActivity::class.java),
                    PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
                )
            )

I tried adding the large icon using the above code, but it didn't work.

Answer 1

1st way(this is what you want)

.setLargeIcon(BitmapFactory. decodeResource (resources , R.drawable. ic_launcher_foreground ))

2st way

.setStyle(NotificationCompat.BigPictureStyle()
                .bigPicture(aBitmap)
                .bigLargeIcon(null))