How to add right button in the navigation bar?

Question

I have a question to add a right button in navigation bar..

I have two views: View A and View B

I add a navigation bar to view A, after I used self.navigationController!.pushViewController to show view B.

That show a back button in the left of navigation bar of view B automatic, it is good. but now I want to add a button in the right of navigation bar of view B.. I have tried some answers, but it doesn't work... I have tried answers likes : 1) https://www.hackingwithswift.com/example-code/uikit/how-to-add-a-bar-button-to-a-navigation-bar 2)http://blog.apoorvmote.com/add-multiple-bar-button-item-navigation-bar/?lang=fr

Could you help me, thank you !

Answer 1

The Swift version of Vahan Babayan's answer, as you seem to use this language, is:

let rightButtonItem = UIBarButtonItem.init(
      title: "Title", 
      style: .Done, 
      target: self, 
      action: "rightButtonAction:"
)

self.navigationItem.rightBarButtonItem = rightButtonItem

The following method will be called on self:

func rightButtonAction(sender: UIBarButtonItem)

Note that all this can be set graphically using a Storyboard, by dragging a Bar Button Item to your Navigation Item and right-clicking to set a target-action.

---

A small update since Swift 3 and 4 are out: the compiler can now check selector names, preventing typos when setting up target-action programatically. So one should really use:

let rightButtonItem = UIBarButtonItem.init(
      title: "Title", 
      style: .Done, 
      target: self, 
      action: #selector(rightButtonAction(sender:))
)