iOS - Set a left title view in navigation bar

setLeftTitleView.swift

override func viewDidLoad() {
  super.viewDidLoad()
  
  // This keep the back button after setting the left title view
  navigationItem.leftItemsSupplementBackButton = true 
}


func setLeftTitleView() {
  let titleLabel = UILabel()
  
  titleLabel.text = "Left Title"

  titleLabel.sizeToFit()

  let titleView = UIView(frame: CGRect(x: 0, y: 0, width: titleLabel.frame.size.width, height: 44))

  titleView.addSubview(titleLabel)

  // Sorry, I use Snapkit to set my constraints
  titleLabel.snp.makeConstraints { (make) in
    make.edges.equalToSuperview()
  }

  let leftBarButton = UIBarButtonItem(customView: titleView)

  navigationItem.setLeftBarButton(leftTitle, animated: true)
}