UITextField with underline iOS swift

Solution:

If you had a textField that wants to be underlined follow the below steps you can achieve.

1. First you have to choose your textfield as custom in your storyboard.

2. Then add an extension to textfield

3. Then assign the delegate to the textfield.call your custom function and then enjoy with the underline.

Coding:

// MARK: uitextField

extension UITextField {

    func underlined(){

        let border = CALayer()

        let lineWidth = CGFloat(0.3)

        border.borderColor = UIColor.darkGray.cgColor

        border.frame = CGRect(x: 0, y: self.frame.size.height - lineWidth, width:  self.frame.size.width, height: self.frame.size.height)

        border.borderWidth = lineWidth

        self.layer.addSublayer(border)

        self.layer.masksToBounds = true

    }

}

import UIKit

class ViewController: UIViewController,UITextFieldDelegate {

    override func viewDidLoad() {

            userNameTF.delegate = self

            userNameTF.underlined()

}

}