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 4.2 +

You can use this extension:

extension UITextField {
    func leftImage(_ image: UIImage?, imageWidth: CGFloat, padding: CGFloat) {
        let imageView = UIImageView(image: image)
        imageView.frame = CGRect(x: padding, y: 0, width: imageWidth, height: frame.height)
        imageView.contentMode = .center
        
        let containerView = UIView(frame: CGRect(x: 0, y: 0, width: imageWidth + 2 * padding, height: frame.height))
        containerView.addSubview(imageView)
        leftView = containerView
        leftViewMode = .always
    }
}