How to set background image for tableView in PFQueryTableViewController

Question

This code in viewDidLoad works for adding a background image to a tableView in a generic tableViewController, however using the Parse SDK, it does not add a background image in a PFQueryTableViewController. What am I doing wrong in the PFQTVC?

peopleTableView.backgroundView = UIImageView(image: UIImage(named: "SFStreetcar"))  

Answer 1

Turns out simply placing the code inside viewWillLayoutSubViews did the trick:

 override func viewWillLayoutSubviews() {
        tableView.backgroundView = UIImageView(image: UIImage(named: "SFStreetcar"))
    }

If that doesn't work though @user2792129 's solution is worth exploring as well.