how to override viewWillDisappear in Swift3

Question

I'm Trying to hide the first navigation bar and show all the others, so I used:

override func viewWillAppear(_ animated: Bool) {
    // Hide the navigation bar on the this view controller
    self.navigationController?.setNavigationBarHidden(true, animated: true)
}

override func viewWillDisappear(_ animated: Bool) {
    // Show the navigation bar on other view controllers
    self.navigationController?.setNavigationBarHidden(false, animated: true)
}

what I need now is to call the super methods: super.viewWillAppear(animated) and super.viewWillDisappear(animated), but I don't know where or how, any suggestions?

Answer 1

Your code will look like

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    // Hide the navigation bar on the this view controller
    self.navigationController?.setNavigationBarHidden(true, animated: true)
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    // Show the navigation bar on other view controllers
    self.navigationController?.setNavigationBarHidden(false, animated: true)
}