Extension for rounded corners in UIView. Warning: make sure that your UIView already has correct frame.

UIView+Presentation.swift

import UIKit

extension UIView {
    
    func round(with radius: CGFloat, corners: UIRectCorner) {
        let roundedPath = UIBezierPath(roundedRect: bounds,
                                       byRoundingCorners: corners,
                                       cornerRadii: CGSize(width: radius, height: radius))
        let maskLayer = CAShapeLayer()
        maskLayer.path = roundedPath.cgPath
        layer.mask = maskLayer
    }
}