Navigation bar button image

Question

I am using this code to get a logo on my nav bar.

override func viewDidAppear(animated: Bool) {

    let image = UIImage(named: "LogoWithTextSmaller.png")
    self.navigationItem.leftBarButtonItem = UIBarButtonItem(image: image, style: UIBarButtonItemStyle.Plain, target: nil, action: nil)
    }

This is fine, but the logo doesn't have any colour - besides 'blue'. Is it because it is a png file. Is there something I can so it retains the original colours

I have done this:

self.navigationItem.titleView = UIImageView(image: image)

and that brings the image onto the nav bar with the correct colours - but it's in the middle and I want it on the left.

Answer 1

You need to declare that the image stays original all the time. so add the code as below

var image = UIImage(named: "image-name")
image = image?.withRenderingMode(.alwaysOriginal)
self.navigationItem.leftBarButtonItem = UIBarButtonItem(image: image, style:.plain, target: nil, action: nil)

Answer 2

In Swift 3 the same would be accomplished using the following syntax

var image = UIImage(named: "Filter")
image = image?.withRenderingMode(UIImageRenderingMode.alwaysOriginal)
self.navigationItem.rightBarButtonItem = UIBarButtonItem(image:image , style: UIBarButtonItemStyle.plain, target: nil, action: nil)