I followed this Sample Code
In Big Text Notifications section, he said that need expand to see Big text notification form, as image im belo
From this notification code you have got images, and big text or more.
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context);
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
mBuilder.setSmallIcon(R.drawable.small_logo);
mBuilder.setColor(Color.parseColor("#D74F4F"));
} else {
mBuilder.setSmallIcon(icon);
}
mBuilder.setTicker(title).setWhen(when);
mBuilder.setAutoCancel(true);
mBuilder.setContentTitle(title);
mBuilder.setContentIntent(intent);
mBuilder.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
mBuilder.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), icon));
mBuilder.setContentText(msg);
mBuilder.setPriority(Notification.PRIORITY_MAX);
if (Utils.validateString(banner_path)) {
mBuilder.setStyle(notiStyle);
} else {
mBuilder.setStyle(new NotificationCompat.BigTextStyle().bigText(msg));
}
Notification noti = mBuilder.build();
notificationManager.notify(0, noti);