Add image to UITextField in Xcode?

Question

I need to implement the concept of dropdown in Xcode.

For

Answer 1

      emailTextField.leftViewMode = .alway
    let emailImgContainer = UIView(frame: CGRect(x: 0, y: 0, width: 30, height: 25))
    let emailImg = UIImageView(frame: CGRect(x: 0, y: 0, width: 25, height: 25))
    emailImg.image = UIImage(named: "SomeIMG")
    emailImgContainer.addSubview(emailImg)
    emailTextField.leftView = emailImgContainer

enter image description here