How to create card view in swift and objective c

CardView.h

#import <UIKit/UIKit.h>

@interface CardView : UIView

@end

cardView.m

#import "CardView.h"

static CGFloat radius = 2;

static int shadowOffsetWidth = 0;
static int shadowOffsetHeight = 3;
static float shadowOpacity = 0.5;

@implementation CardView


-(void)layoutSubviews{
    self.layer.cornerRadius = radius;
    UIBezierPath *shadowPath = [UIBezierPath
                                bezierPathWithRoundedRect: self.bounds
                                cornerRadius: radius];
    
    
    self.layer.masksToBounds = false;
    self.layer.shadowColor = [UIColor blackColor].CGColor;
    self.layer.shadowOffset = CGSizeMake(shadowOffsetWidth, shadowOffsetHeight);
    self.layer.shadowOpacity = shadowOpacity;
    self.layer.shadowPath = shadowPath.CGPath;
}

-(id)initWithCoder:(NSCoder *)aDecoder{
    return [super initWithCoder:aDecoder];
}

@end

CardView.swift

//
//  cardView.swift
//  Negoshe
//
//  Created by Mahabir on 06/06/18.
//  Copyright © 2018 iws. All rights reserved.
//

import UIKit

@IBDesignable
class cardView: UIView {
    
    @IBInspectable var cornerRadius: CGFloat = 2
    
    @IBInspectable var shadowOffsetWidth: Int = 0
    @IBInspectable var shadowOffsetHeight: Int = 3
    @IBInspectable var shadowColor: UIColor? = UIColor.black
    @IBInspectable var shadowOpacity: Float = 0.5
    
    override func layoutSubviews() {
        layer.cornerRadius = cornerRadius
        let shadowPath = UIBezierPath(roundedRect: bounds, cornerRadius: cornerRadius)
        
        layer.masksToBounds = false
        layer.shadowColor = shadowColor?.cgColor
        layer.shadowOffset = CGSize(width: shadowOffsetWidth, height: shadowOffsetHeight);
        layer.shadowOpacity = shadowOpacity
        layer.shadowPath = shadowPath.cgPath
    }
    
}