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extension UITextField {
func useUnderline() -> Void {
let border = CALayer()
let borderWidth = CGFloat(2.0) // Border Width
border.borderColor = UIColor.red.cgColor
border.frame = CGRect(origin: CGPoint(x: 0,y :self.frame.size.height - borderWidth), size: CGSize(width: self.frame.size.width, height: self.frame.size.height))
border.borderWidth = borderWidth
self.layer.addSublayer(border)
self.layer.masksToBounds = true
}
}
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