Using closure in the function - ios

Question

I like to know that whether there is a way to use a closure in the function updateView(), so that the code is not repeated for phone and pad in the code below. Here the closure should have parameters for width and height
#IBInspectable var leftImage: UIImage? {
didSet {
updateView()
}
}
func updateView() {
if let image = leftImage
{
leftViewMode = UITextField.ViewMode.always
if (UIDevice.current.userInterfaceIdiom == .phone)
{
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 20, height: 20))
imageView.contentMode = .scaleAspectFit
imageView.image = image
imageView.tintColor = color
leftView = imageView
}
if (UIDevice.current.userInterfaceIdiom == .pad)
{
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
imageView.contentMode = .scaleAspectFit
imageView.image = image
imageView.tintColor = color
leftView = imageView
}
}
else
{
leftViewMode = UITextField.ViewMode.never
leftView = nil
}
}
I ran out of ideas, trying it unsuccessfully. Thanks, in advance.

Answer 1

The code is identical except for the image view size. Set a variable for the size based on the device and don't repeat any of the other code.
func updateView() {
if let image = leftImage {
leftViewMode = UITextField.ViewMode.always
let size: CGFloat = UIDevice.current.userInterfaceIdiom == .phone ? 20 : 30
let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: size, height: size))
imageView.contentMode = .scaleAspectFit
imageView.image = image
imageView.tintColor = color
leftView = imageView
} else {
leftViewMode = UITextField.ViewMode.never
leftView = nil
}
}
BTW - don't write code that makes decisions based on the device idiom. Make your decisions based on the size of the view controller's view.