Adding buttons to toolbar programmatically in swift

Question

I\'m having a hard time adding a button to the toolbar in swift, below you can see an image of the toolbar that I\'m after, unfortunately even though I have it designed in my St

Answer 1

None of the above worked for me, but:

Swift 3 / Swift 4

self.navigationController?.isToolbarHidden = false

var items = [UIBarButtonItem]()

items.append( UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: self, action: nil) )
items.append( UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(add)) ) // replace add with your function

self.toolbarItems = items // this made the difference. setting the items to the controller, not the navigationcontroller