I can't add a barButton Item to a navigationBar

Question

I Embedded a ViewController in a UINavigationController and after that, I added a new ViewController and connected it with a segue to the first ViewController that is embedded in a UINavigationController . then I wanted to add a BarButtonItem to that second view, but when I let go the bar button item in the top of the view next to the title, it inserts it at the button, and when I run the app it only shows the back button to the first screen and the title. (see the picture of how it looks when running and how it looks after inserting it at the top)

I hope you understood the question and you can help me!

thanks in advance!

Benji

Answer 1

write this code in your viewDidLoad Method of controller where you want to add button

    let navBtn = UIButton(type: .custom)
    navBtn.setImage(UIImage(named: "side_drawer"), for: .normal)
    navBtn.frame = CGRect(x: 0, y: 0, width: 40, height: 100)
    navBtn.addTarget(self, action: #selector(openMessagingThread(_:)), for: .touchUpInside)
    let rightNavBarItem = UIBarButtonItem(customView: navBtn)
    self.navigationItem.setRightBarButton(rightNavBarItem, animated: true)

//Action for barButton

   @objc
func openMessagingThread(_ sender: UIButton)  {

}