CustomTextFieldWithPadding.swift

class CustomTextFieldWithPadding: UITextField {
    
    let padding: CGFloat = 16
    
    private var paddingEdgeInsets: UIEdgeInsets {
        return UIEdgeInsetsMake(0, padding, 0, padding)
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    override func textRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, paddingEdgeInsets)
    }
    
    override func editingRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, paddingEdgeInsets)
    }
    
    override func placeholderRect(forBounds bounds: CGRect) -> CGRect {
        return UIEdgeInsetsInsetRect(bounds, paddingEdgeInsets)
    }
}