private void applyStyle(NotificationCompat.Builder builder) {
        if (applyMessagingStyle(builder)) return;
        if (applyBigPictureStyle(builder)) return;
        if (applyInboxStyle(builder)) return;
        if (applyBigTextStyle(builder)) return;
    }
Find out and set the notification style.
@param builder Notification builder instance.
src/android/Notification.java