How to get left padding on UITextField leftView image?

Question

I am setting up a UIImageView as a leftView on a UITextField like so:

UIImageView *envelopeView = [[UIImageView alloc]         


        

Answer 1

For Swift 3 Users

Here is what worked for me:

extension UITextField {

 /// set icon of 20x20 with left padding of 8px 
 func setLeftIcon(_ icon: UIImage) {

    let padding = 8
    let size = 20

    let outerView = UIView(frame: CGRect(x: 0, y: 0, width: size+padding, height: size) )
    let iconView  = UIImageView(frame: CGRect(x: padding, y: 0, width: size, height: size))
    iconView.image = icon
    outerView.addSubview(iconView)

    leftView = outerView
    leftViewMode = .always  
  }
}

test:

txOrigin.setLeftIcon(icon_location)

result: