Nav Bar Hidden on View Controller On Second and Subsequent Appearances - ios

Question

I have a parent TableViewController and a child ViewController all within the context of a navigation controller. What I want to happen is for the table view controller to NEVER show the nav bar, and for the view controller to ALWAYS show the nav bar. I hide and show the nav bar within the viewWillAppear func of each subclass, like this:
table view controller:
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true);
navigationController?.navigationBar.hidden = true
UIApplication.sharedApplication().statusBarHidden=true
}
view controller:
override func viewWillAppear(animated: Bool) {
self.navigationController?.navigationBarHidden = false
}
This works for the first navigation. When I launch the app, the parent table view controller hides the nav bar, and when I select the first cell, the child view controller dutifully displays the nav bar. However, when I touch 'Back' on the nav bar, and then select the cell again, the view controller is no longer displaying the nav bar.
Is there a better way to do this?
Update - as requested attaching screenshots of XIB and Storyboard. Note that there is no XIB for the parent TableViewController. I am not confident that these screenshot will provide much insight. Especially that of the storyboard. Unfortunately, Xcode only has 2 zoom levels:
1. Too zoomed in to be useful
2. Too zoomed out to be useful
Nonetheless, here you have them:

Answer 1

That should work fine: When your ViewController will appear, the code should get executed every time. Try with an "print" to test if that happens.
First View Controller
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true)
print("viewWillLoad - Table View")
self.navigationController?.navigationBarHidden = false
}
Second View Controller
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(true)
print("viewWillLoad - Detail View")
self.navigationController?.navigationBarHidden = true
}
Ill use that in some applications too.