Creating an image with UIImage.renderingMode()

Question

I'm having some issues initializing an image in my code. I'm trying to change its tintColor property when the cell it sits in is highlighted like so:

iconImageView.tintColor = isHighlighted ? UIColor.white : UIColor.black

And to do so I'm initializing the image with the following line:

iconImageView.image = UIImage(named: imageName)?.renderingMode(.alwaysTemplate)

But I'm getting the following error:

Cannot call value of non-function type 'UIImage.RenderingMode'

Any suggestions?

Answer 1

The 'renderingMode' is a read-only property of UIImage.

Creates and returns a new image object with the specified rendering mode. You can use:

open func withRenderingMode(_ renderingMode: UIImage.RenderingMode) -> UIImage

Code snippet:

let imageView: UIImageView = UIImageView.init()
let image = UIImage.init(named: "name")?.withRenderingMode(.alwaysOriginal)
imageView.image = image

Answer 2

renderingMode specifies the possible rendering modes for an image.

withRenderingMode(_:) creates and returns a new UIImage object with the specified rendering mode.

So, you need to use withRenderingMode(_:) which is a function versus renderingMode which is a property.

let image = UIImage(named: "imageName")?.withRenderingMode(.alwaysTemplate)
iconImageView.image.setImage(image, for: .normal)
iconImageView.image.tintColor = isHighlighted ? UIColor.white : UIColor.black