Setting UIButton Image With Ternary Operator-CodePudding

I have a password UICollectionViewCell with a UITextField to enter the password. I want to have a button where the user can change the isSecureTextEntry property.

My Code

private lazy var button: UIButton = {
    let view = UIButton()
    view.translatesAutoresizingMaskIntoConstraints = false
    view.addTarget(self, action: #selector(toggle), for: .touchUpInside)
    return view
}()

@objc func toggle(_ sender: UIButton) {
    sender.isSelected == false ? button.setImage(secureImage, for: .normal) : button.setImage(unSecureImage, for: .selected)
}

Set Up Cell

    self.toggle(button)

However, my button image is not changing.

CodePudding user response：

sender.isSelected == false ? button.setImage(secureImage, for: .normal) : button.setImage(unSecureImage, for: .selected)

You're setting for normal state on one side and for selected state on the other.

Try this:

button.setImage((sender.isSelected ? unSecureImage : secureImage), for: .normal)

CodePudding user response：

Can you try like this,

Setting the image for normal and selected state

On tapping the button changing the isSelected state of the button

private lazy var button: UIButton = {
   let view = UIButton()
   view.translatesAutoresizingMaskIntoConstraints = false
   view.setImage(secureImage, for: .normal)
   view.setImage(unSecureImage, for: .selected)
   view.addTarget(self, action: #selector(toggleAction), for: .touchUpInside)
  return view
}()

@objc func toggleAction(_ sender: UIButton) {
  sender.isSelected.toggle()
}