Size of image inside textfield is not resizing - ios

Question

I have a custom text field and i want to place image on its left side, but when ever i am running the app, the size of image is not adjusting , i.e its full scale and not taking the width and height being provided. The code and pictures are attached
ViewController class:(In which text field is present)
import UIKit
class Signup2ViewController: UIViewController {
#IBOutlet weak var Email: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
Email.leftViewMode = .always
let imageview = UIImageView()
imageview.frame = CGRect(x: 0, y: 0, width: 5.0, height: 5.0)
view.addSubview(imageview)
let icon = UIImage(named: "c.png")
imageview.image = icon
Email.leftView = imageview
// Do any additional setup after loading the view.
}
}

Answer 1

To set the frame for your imageView you need to subclass UITextField and override leftViewRect(forBounds:). The code below will result in a 20x20 view offset 10 points from the left and centered vertically.
class AwesomeTextField: UITextField {
override func leftViewRect(forBounds bounds: CGRect) -> CGRect {
let leftViewHeight: CGFloat = 20
let y = bounds.size.height / 2 - leftViewHeight / 2
return .init(x: 10, y: y, width: leftViewHeight, height: leftViewHeight)
}
}
To add an imageView to the textField you would do this:
class ViewController: UIViewController {
#IBOutlet weak var textField: AwesomeTextField!
override func viewDidLoad() {
super.viewDidLoad()
let imageView = UIImageView()
imageView.image = UIImage(named: "c")
textField.leftView = imageView
textField.leftViewMode = .always
}
}
Make sure you set the appropriate class name for the textField in the identity inspector of your storyboard.